diff --git a/src/bicep/bicep.contribution.ts b/src/bicep/bicep.contribution.ts
new file mode 100644
index 00000000..ae9837ec
--- /dev/null
+++ b/src/bicep/bicep.contribution.ts
@@ -0,0 +1,13 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { registerLanguage } from '../_.contribution';
+
+registerLanguage({
+	id: 'bicep',
+	extensions: ['.bicep'],
+	aliases: ['Bicep'],
+	loader: () => import('./bicep')
+});
diff --git a/src/bicep/bicep.test.ts b/src/bicep/bicep.test.ts
new file mode 100644
index 00000000..2fbf7f2a
--- /dev/null
+++ b/src/bicep/bicep.test.ts
@@ -0,0 +1,1069 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+/* To generate an initial baseline from a .bicep file, uncomment:
+
+import { testTokenization } from '../test/testRunner';
+import { readFileSync } from 'fs';
+
+const lines = readFileSync('/Users/ant/Code/bicep/src/monarch/test/baselines/basic.bicep', { encoding: 'utf-8' }).split(/\r?\n/);
+
+testTokenization('bicep', [
+  lines.map(line => ({
+    line,
+    tokens: [],
+  }))
+]);
+*/
+
+import { testTokenization } from '../test/testRunner';
+
+testTokenization('bicep', [
+	[
+		// https://github.com/Azure/bicep/blob/bc9fc9ce09d1d8da21144d84db01655e042e74bf/src/monarch/test/baselines/comments.bicep
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: "resource test 'Microsoft.AAD/domainServices@2021-03-01' = {",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 9, type: 'identifier.bicep' },
+				{ startIndex: 13, type: '' },
+				{ startIndex: 14, type: 'string.quote.bicep' },
+				{ startIndex: 15, type: 'string.bicep' },
+				{ startIndex: 55, type: '' }
+			]
+		},
+		{
+			line: "  name: 'asdfsdf'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 6, type: '' },
+				{ startIndex: 8, type: 'string.quote.bicep' },
+				{ startIndex: 9, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '  // this is a comment',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'comment.bicep' }
+			]
+		},
+		{
+			line: '  properties: {/*comment*/',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 12, type: '' },
+				{ startIndex: 15, type: 'comment.bicep' }
+			]
+		},
+		{
+			line:
+				"    domainConfigurationType/*comment*/:/*comment*/'as//notacomment!d/* also not a comment */fsdf'// test!/*",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 27, type: 'comment.bicep' },
+				{ startIndex: 38, type: '' },
+				{ startIndex: 39, type: 'comment.bicep' },
+				{ startIndex: 50, type: 'string.quote.bicep' },
+				{ startIndex: 51, type: 'string.bicep' },
+				{ startIndex: 97, type: 'comment.bicep' }
+			]
+		},
+		{
+			line: '    /* multi',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 4, type: 'comment.bicep' }
+			]
+		},
+		{
+			line: '    line',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: '    comment */ domainName: /*',
+			tokens: [
+				{ startIndex: 0, type: 'comment.bicep' },
+				{ startIndex: 14, type: '' },
+				{ startIndex: 15, type: 'identifier.bicep' },
+				{ startIndex: 25, type: '' },
+				{ startIndex: 27, type: 'comment.bicep' }
+			]
+		},
+		{
+			line: "    asdf*/'test'",
+			tokens: [
+				{ startIndex: 0, type: 'comment.bicep' },
+				{ startIndex: 10, type: 'string.quote.bicep' },
+				{ startIndex: 11, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '    // comment',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 4, type: 'comment.bicep' }
+			]
+		},
+		{
+			line: '  }',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '}',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		}
+	],
+	[
+		// https://github.com/Azure/bicep/blob/bc9fc9ce09d1d8da21144d84db01655e042e74bf/src/monarch/test/baselines/basic.bicep
+		{
+			line: '// test',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: '/* test 2 */',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: "targetScope = 'resourceGroup'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 11, type: '' },
+				{ startIndex: 14, type: 'string.quote.bicep' },
+				{ startIndex: 15, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: "resource avcsdd 'Microsoft.Cache/redis@2020-06-01' = { // line comment",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 9, type: 'identifier.bicep' },
+				{ startIndex: 15, type: '' },
+				{ startIndex: 16, type: 'string.quote.bicep' },
+				{ startIndex: 17, type: 'string.bicep' },
+				{ startIndex: 50, type: '' },
+				{ startIndex: 55, type: 'comment.bicep' }
+			]
+		},
+		{
+			line: "  name: 'def' /* block",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 6, type: '' },
+				{ startIndex: 8, type: 'string.quote.bicep' },
+				{ startIndex: 9, type: 'string.bicep' },
+				{ startIndex: 13, type: '' },
+				{ startIndex: 14, type: 'comment.bicep' }
+			]
+		},
+		{
+			line: '  comment */',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: "  location: 'somewhere'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 10, type: '' },
+				{ startIndex: 12, type: 'string.quote.bicep' },
+				{ startIndex: 13, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '  properties: {',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 12, type: '' }
+			]
+		},
+		{
+			line: '    sku: {',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 7, type: '' }
+			]
+		},
+		{
+			line: '      capacity: 123',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 6, type: 'identifier.bicep' },
+				{ startIndex: 14, type: '' },
+				{ startIndex: 16, type: 'number.bicep' }
+			]
+		},
+		{
+			line: "      family: 'C'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 6, type: 'identifier.bicep' },
+				{ startIndex: 12, type: '' },
+				{ startIndex: 14, type: 'string.quote.bicep' },
+				{ startIndex: 15, type: 'string.bicep' }
+			]
+		},
+		{
+			line: "      name: 'Basic'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 6, type: 'identifier.bicep' },
+				{ startIndex: 10, type: '' },
+				{ startIndex: 12, type: 'string.quote.bicep' },
+				{ startIndex: 13, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '    }',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '  }',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '}',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: 'var secretsObject = {',
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 17, type: '' }
+			]
+		},
+		{
+			line: '  secrets: [',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 9, type: '' }
+			]
+		},
+		{
+			line: "    'abc'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 4, type: 'string.quote.bicep' },
+				{ startIndex: 5, type: 'string.bicep' }
+			]
+		},
+		{
+			line: "    'def'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 4, type: 'string.quote.bicep' },
+				{ startIndex: 5, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '  ]',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '}',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: "var parent = 'abc'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 10, type: '' },
+				{ startIndex: 13, type: 'string.quote.bicep' },
+				{ startIndex: 14, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: "resource secrets0 'Microsoft.KeyVault/vaults/secrets@2018-02-14' = {",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 9, type: 'identifier.bicep' },
+				{ startIndex: 17, type: '' },
+				{ startIndex: 18, type: 'string.quote.bicep' },
+				{ startIndex: 19, type: 'string.bicep' },
+				{ startIndex: 64, type: '' }
+			]
+		},
+		{
+			line: "  name: '${parent}/child'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 6, type: '' },
+				{ startIndex: 8, type: 'string.quote.bicep' },
+				{ startIndex: 9, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 11, type: 'identifier.bicep' },
+				{ startIndex: 17, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 18, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '  properties: {',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 12, type: '' }
+			]
+		},
+		{
+			line: '    attributes:  {',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 14, type: '' }
+			]
+		},
+		{
+			line: '      enabled: true',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 6, type: 'identifier.bicep' },
+				{ startIndex: 13, type: '' },
+				{ startIndex: 15, type: 'keyword.bicep' }
+			]
+		},
+		{
+			line: '    }',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '  }',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '}',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line:
+				"resource secrets1 'Microsoft.KeyVault/vaults/secrets@2018-02-14' = if (secrets0.id == '') {",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 9, type: 'identifier.bicep' },
+				{ startIndex: 17, type: '' },
+				{ startIndex: 18, type: 'string.quote.bicep' },
+				{ startIndex: 19, type: 'string.bicep' },
+				{ startIndex: 64, type: '' },
+				{ startIndex: 67, type: 'keyword.bicep' },
+				{ startIndex: 69, type: '' },
+				{ startIndex: 71, type: 'identifier.bicep' },
+				{ startIndex: 79, type: '' },
+				{ startIndex: 80, type: 'identifier.bicep' },
+				{ startIndex: 82, type: '' },
+				{ startIndex: 86, type: 'string.quote.bicep' },
+				{ startIndex: 87, type: 'string.bicep' },
+				{ startIndex: 88, type: '' }
+			]
+		},
+		{
+			line: "  name: '${parent}/child1'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 6, type: '' },
+				{ startIndex: 8, type: 'string.quote.bicep' },
+				{ startIndex: 9, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 11, type: 'identifier.bicep' },
+				{ startIndex: 17, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 18, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '  properties: {',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 12, type: '' }
+			]
+		},
+		{
+			line: '  }',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '}',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line:
+				"resource secrets2 'Microsoft.KeyVault/vaults/secrets@2018-02-14' = [for secret in secretsObject.secrets: {",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 9, type: 'identifier.bicep' },
+				{ startIndex: 17, type: '' },
+				{ startIndex: 18, type: 'string.quote.bicep' },
+				{ startIndex: 19, type: 'string.bicep' },
+				{ startIndex: 64, type: '' },
+				{ startIndex: 68, type: 'keyword.bicep' },
+				{ startIndex: 71, type: '' },
+				{ startIndex: 72, type: 'identifier.bicep' },
+				{ startIndex: 78, type: '' },
+				{ startIndex: 79, type: 'keyword.bicep' },
+				{ startIndex: 81, type: '' },
+				{ startIndex: 82, type: 'identifier.bicep' },
+				{ startIndex: 95, type: '' },
+				{ startIndex: 96, type: 'identifier.bicep' },
+				{ startIndex: 103, type: '' }
+			]
+		},
+		{
+			line: "  name: 'asdfsd/forloop'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 6, type: '' },
+				{ startIndex: 8, type: 'string.quote.bicep' },
+				{ startIndex: 9, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '  properties: {}',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 12, type: '' }
+			]
+		},
+		{
+			line: '}]',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line:
+				"resource secrets3 'Microsoft.KeyVault/vaults/secrets@2018-02-14' = [for secret in secretsObject.secrets: {",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 9, type: 'identifier.bicep' },
+				{ startIndex: 17, type: '' },
+				{ startIndex: 18, type: 'string.quote.bicep' },
+				{ startIndex: 19, type: 'string.bicep' },
+				{ startIndex: 64, type: '' },
+				{ startIndex: 68, type: 'keyword.bicep' },
+				{ startIndex: 71, type: '' },
+				{ startIndex: 72, type: 'identifier.bicep' },
+				{ startIndex: 78, type: '' },
+				{ startIndex: 79, type: 'keyword.bicep' },
+				{ startIndex: 81, type: '' },
+				{ startIndex: 82, type: 'identifier.bicep' },
+				{ startIndex: 95, type: '' },
+				{ startIndex: 96, type: 'identifier.bicep' },
+				{ startIndex: 103, type: '' }
+			]
+		},
+		{
+			line: "  name: 'jk${true}asdf${23}.\\${SDF${secretsObject['secrets'][1]}'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 6, type: '' },
+				{ startIndex: 8, type: 'string.quote.bicep' },
+				{ startIndex: 9, type: 'string.bicep' },
+				{ startIndex: 11, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 13, type: 'keyword.bicep' },
+				{ startIndex: 17, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 18, type: 'string.bicep' },
+				{ startIndex: 22, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 24, type: 'number.bicep' },
+				{ startIndex: 26, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 27, type: 'string.bicep' },
+				{ startIndex: 28, type: 'string.escape.bicep' },
+				{ startIndex: 31, type: 'string.bicep' },
+				{ startIndex: 34, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 36, type: 'identifier.bicep' },
+				{ startIndex: 49, type: '' },
+				{ startIndex: 50, type: 'string.quote.bicep' },
+				{ startIndex: 51, type: 'string.bicep' },
+				{ startIndex: 59, type: '' },
+				{ startIndex: 61, type: 'number.bicep' },
+				{ startIndex: 62, type: '' },
+				{ startIndex: 63, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 64, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '  properties: {',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 12, type: '' }
+			]
+		},
+		{
+			line: '  }',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '}]',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line:
+				"resource secrets4 'Microsoft.KeyVault/vaults/secrets@2018-02-14' = [for secret in secretsObject.secrets: if (true) {",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 9, type: 'identifier.bicep' },
+				{ startIndex: 17, type: '' },
+				{ startIndex: 18, type: 'string.quote.bicep' },
+				{ startIndex: 19, type: 'string.bicep' },
+				{ startIndex: 64, type: '' },
+				{ startIndex: 68, type: 'keyword.bicep' },
+				{ startIndex: 71, type: '' },
+				{ startIndex: 72, type: 'identifier.bicep' },
+				{ startIndex: 78, type: '' },
+				{ startIndex: 79, type: 'keyword.bicep' },
+				{ startIndex: 81, type: '' },
+				{ startIndex: 82, type: 'identifier.bicep' },
+				{ startIndex: 95, type: '' },
+				{ startIndex: 96, type: 'identifier.bicep' },
+				{ startIndex: 103, type: '' },
+				{ startIndex: 105, type: 'keyword.bicep' },
+				{ startIndex: 107, type: '' },
+				{ startIndex: 109, type: 'keyword.bicep' },
+				{ startIndex: 113, type: '' }
+			]
+		},
+		{
+			line: "  'name': 'test'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 10, type: 'string.quote.bicep' },
+				{ startIndex: 11, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '  properties:{',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 12, type: '' }
+			]
+		},
+		{
+			line: '  }',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '}]',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line:
+				"resource virtualNetwork 'Microsoft.Network/virtualNetworks@2020-08-01' existing = {",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 9, type: 'identifier.bicep' },
+				{ startIndex: 23, type: '' },
+				{ startIndex: 24, type: 'string.quote.bicep' },
+				{ startIndex: 25, type: 'string.bicep' },
+				{ startIndex: 70, type: '' },
+				{ startIndex: 71, type: 'keyword.bicep' },
+				{ startIndex: 79, type: '' }
+			]
+		},
+		{
+			line: "  name: 'myVnet'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'identifier.bicep' },
+				{ startIndex: 6, type: '' },
+				{ startIndex: 8, type: 'string.quote.bicep' },
+				{ startIndex: 9, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '}',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: "var multi = ''''''",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 9, type: '' },
+				{ startIndex: 12, type: 'string.quote.bicep' }
+			]
+		},
+		{
+			line: "var multi2 = '''",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 10, type: '' },
+				{ startIndex: 13, type: 'string.quote.bicep' }
+			]
+		},
+		{
+			line: '      hello!',
+			tokens: [{ startIndex: 0, type: 'string.bicep' }]
+		},
+		{
+			line: "'''",
+			tokens: [{ startIndex: 0, type: 'string.quote.bicep' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: 'var func = resourceGroup().location',
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 8, type: '' },
+				{ startIndex: 11, type: 'identifier.bicep' },
+				{ startIndex: 24, type: '' },
+				{ startIndex: 27, type: 'identifier.bicep' }
+			]
+		},
+		{
+			line: "var func2 = reference('Microsoft.KeyVault/vaults/secrets', func)",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 9, type: '' },
+				{ startIndex: 12, type: 'identifier.bicep' },
+				{ startIndex: 21, type: '' },
+				{ startIndex: 22, type: 'string.quote.bicep' },
+				{ startIndex: 23, type: 'string.bicep' },
+				{ startIndex: 57, type: '' },
+				{ startIndex: 59, type: 'identifier.bicep' },
+				{ startIndex: 63, type: '' }
+			]
+		},
+		{
+			line: 'var func3 = union({',
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 9, type: '' },
+				{ startIndex: 12, type: 'identifier.bicep' },
+				{ startIndex: 17, type: '' }
+			]
+		},
+		{
+			line: "  'abc': resourceGroup().id",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' },
+				{ startIndex: 7, type: '' },
+				{ startIndex: 9, type: 'identifier.bicep' },
+				{ startIndex: 22, type: '' },
+				{ startIndex: 25, type: 'identifier.bicep' }
+			]
+		},
+		{
+			line: '}, {',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: "  'def': 'test'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' },
+				{ startIndex: 7, type: '' },
+				{ startIndex: 9, type: 'string.quote.bicep' },
+				{ startIndex: 10, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '})',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: '@allowed([',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 1, type: 'identifier.bicep' },
+				{ startIndex: 8, type: '' }
+			]
+		},
+		{
+			line: "  'hello!'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' }
+			]
+		},
+		{
+			line: "  'hi!'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '])',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '@secure()',
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 1, type: 'identifier.bicep' },
+				{ startIndex: 7, type: '' }
+			]
+		},
+		{
+			line: "param secureParam string = 'hello!'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 5, type: '' },
+				{ startIndex: 6, type: 'identifier.bicep' },
+				{ startIndex: 17, type: '' },
+				{ startIndex: 18, type: 'identifier.bicep' },
+				{ startIndex: 24, type: '' },
+				{ startIndex: 27, type: 'string.quote.bicep' },
+				{ startIndex: 28, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: "var emojis = '💪😊😈🍕☕'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 10, type: '' },
+				{ startIndex: 13, type: 'string.quote.bicep' },
+				{ startIndex: 14, type: 'string.bicep' }
+			]
+		},
+		{
+			line: "var ninjaCat = '🐱‍👤'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 12, type: '' },
+				{ startIndex: 15, type: 'string.quote.bicep' },
+				{ startIndex: 16, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: '/* block */',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: '/*',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: '朝辞白帝彩云间',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: '千里江陵一日还',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: '两岸猿声啼不住',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: '轻舟已过万重山',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: '*/',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: '// greek letters in comment: Π π Φ φ plus emoji 😎',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: 'var variousAlphabets = {',
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 20, type: '' }
+			]
+		},
+		{
+			line: "  'α': 'α'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' },
+				{ startIndex: 5, type: '' },
+				{ startIndex: 7, type: 'string.quote.bicep' },
+				{ startIndex: 8, type: 'string.bicep' }
+			]
+		},
+		{
+			line: "  'Ωω': [",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' },
+				{ startIndex: 6, type: '' }
+			]
+		},
+		{
+			line: "    'Θμ'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 4, type: 'string.quote.bicep' },
+				{ startIndex: 5, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '  ]',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: "  'ążźćłóę': 'Cześć!'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' },
+				{ startIndex: 11, type: '' },
+				{ startIndex: 13, type: 'string.quote.bicep' },
+				{ startIndex: 14, type: 'string.bicep' }
+			]
+		},
+		{
+			line: "  'áéóúñü': '¡Hola!'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' },
+				{ startIndex: 10, type: '' },
+				{ startIndex: 12, type: 'string.quote.bicep' },
+				{ startIndex: 13, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: "  '二头肌': '二头肌'",
+			tokens: [
+				{ startIndex: 0, type: '' },
+				{ startIndex: 2, type: 'string.quote.bicep' },
+				{ startIndex: 3, type: 'string.bicep' },
+				{ startIndex: 7, type: '' },
+				{ startIndex: 9, type: 'string.quote.bicep' },
+				{ startIndex: 10, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '}',
+			tokens: [{ startIndex: 0, type: '' }]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: "output concatUnicodeStrings string = concat('Θμ', '二头肌', 'α')",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 6, type: '' },
+				{ startIndex: 7, type: 'identifier.bicep' },
+				{ startIndex: 27, type: '' },
+				{ startIndex: 28, type: 'identifier.bicep' },
+				{ startIndex: 34, type: '' },
+				{ startIndex: 37, type: 'identifier.bicep' },
+				{ startIndex: 43, type: '' },
+				{ startIndex: 44, type: 'string.quote.bicep' },
+				{ startIndex: 45, type: 'string.bicep' },
+				{ startIndex: 48, type: '' },
+				{ startIndex: 50, type: 'string.quote.bicep' },
+				{ startIndex: 51, type: 'string.bicep' },
+				{ startIndex: 55, type: '' },
+				{ startIndex: 57, type: 'string.quote.bicep' },
+				{ startIndex: 58, type: 'string.bicep' },
+				{ startIndex: 60, type: '' }
+			]
+		},
+		{
+			line: "output interpolateUnicodeStrings string = 'Θμ二${emojis}头肌${ninjaCat}α'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 6, type: '' },
+				{ startIndex: 7, type: 'identifier.bicep' },
+				{ startIndex: 32, type: '' },
+				{ startIndex: 33, type: 'identifier.bicep' },
+				{ startIndex: 39, type: '' },
+				{ startIndex: 42, type: 'string.quote.bicep' },
+				{ startIndex: 43, type: 'string.bicep' },
+				{ startIndex: 46, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 48, type: 'identifier.bicep' },
+				{ startIndex: 54, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 55, type: 'string.bicep' },
+				{ startIndex: 57, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 59, type: 'identifier.bicep' },
+				{ startIndex: 67, type: 'delimiter.bracket.bicep' },
+				{ startIndex: 68, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: '// all of these should produce the same string',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: "var surrogate_char      = '𐐷'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 18, type: '' },
+				{ startIndex: 26, type: 'string.quote.bicep' },
+				{ startIndex: 27, type: 'string.bicep' }
+			]
+		},
+		{
+			line: "var surrogate_codepoint = '\\u{10437}'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 23, type: '' },
+				{ startIndex: 26, type: 'string.quote.bicep' },
+				{ startIndex: 27, type: 'string.escape.bicep' },
+				{ startIndex: 36, type: 'string.bicep' }
+			]
+		},
+		{
+			line: "var surrogate_pairs     = '\\u{D801}\\u{DC37}'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 19, type: '' },
+				{ startIndex: 26, type: 'string.quote.bicep' },
+				{ startIndex: 27, type: 'string.escape.bicep' },
+				{ startIndex: 43, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '',
+			tokens: []
+		},
+		{
+			line: '// ascii escapes',
+			tokens: [{ startIndex: 0, type: 'comment.bicep' }]
+		},
+		{
+			line: "var hello = '❆ Hello\\u{20}World\\u{21} ❁'",
+			tokens: [
+				{ startIndex: 0, type: 'keyword.bicep' },
+				{ startIndex: 3, type: '' },
+				{ startIndex: 4, type: 'identifier.bicep' },
+				{ startIndex: 9, type: '' },
+				{ startIndex: 12, type: 'string.quote.bicep' },
+				{ startIndex: 13, type: 'string.bicep' },
+				{ startIndex: 20, type: 'string.escape.bicep' },
+				{ startIndex: 26, type: 'string.bicep' },
+				{ startIndex: 31, type: 'string.escape.bicep' },
+				{ startIndex: 37, type: 'string.bicep' }
+			]
+		},
+		{
+			line: '',
+			tokens: []
+		}
+	]
+]);
diff --git a/src/bicep/bicep.ts b/src/bicep/bicep.ts
new file mode 100644
index 00000000..4c0094c3
--- /dev/null
+++ b/src/bicep/bicep.ts
@@ -0,0 +1,131 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+import type { languages } from '../fillers/monaco-editor-core';
+
+const bounded = (text: string) => `\\b${text}\\b`;
+
+const identifierStart = '[_a-zA-Z]';
+const identifierContinue = '[_a-zA-Z0-9]';
+const identifier = bounded(`${identifierStart}${identifierContinue}*`);
+
+const keywords = [
+	'targetScope',
+	'resource',
+	'module',
+	'param',
+	'var',
+	'output',
+	'for',
+	'in',
+	'if',
+	'existing'
+];
+
+const namedLiterals = ['true', 'false', 'null'];
+
+const nonCommentWs = `[ \\t\\r\\n]`;
+
+const numericLiteral = `[0-9]+`;
+
+export const conf: languages.LanguageConfiguration = {
+	comments: {
+		lineComment: '//',
+		blockComment: ['/*', '*/']
+	},
+	brackets: [
+		['{', '}'],
+		['[', ']'],
+		['(', ')']
+	],
+	surroundingPairs: [
+		{ open: '{', close: '}' },
+		{ open: '[', close: ']' },
+		{ open: '(', close: ')' },
+		{ open: "'", close: "'" },
+		{ open: "'''", close: "'''" }
+	],
+	autoClosingPairs: [
+		{ open: '{', close: '}' },
+		{ open: '[', close: ']' },
+		{ open: '(', close: ')' },
+		{ open: "'", close: "'", notIn: ['string', 'comment'] },
+		{ open: "'''", close: "'''", notIn: ['string', 'comment'] }
+	],
+	autoCloseBefore: ":.,=}])' \n\t",
+	indentationRules: {
+		increaseIndentPattern: new RegExp(
+			'^((?!\\/\\/).)*(\\{[^}"\'`]*|\\([^)"\'`]*|\\[[^\\]"\'`]*)$'
+		),
+		decreaseIndentPattern: new RegExp('^((?!.*?\\/\\*).*\\*/)?\\s*[\\}\\]].*$')
+	}
+};
+
+export const language = <languages.IMonarchLanguage>{
+	defaultToken: '',
+	tokenPostfix: '.bicep',
+
+	brackets: [
+		{ open: '{', close: '}', token: 'delimiter.curly' },
+		{ open: '[', close: ']', token: 'delimiter.square' },
+		{ open: '(', close: ')', token: 'delimiter.parenthesis' }
+	],
+
+	symbols: /[=><!~?:&|+\-*/^%]+/,
+
+	keywords,
+	namedLiterals,
+
+	escapes: `\\\\(u{[0-9A-Fa-f]+}|n|r|t|\\\\|'|\\\${)`,
+
+	tokenizer: {
+		root: [{ include: '@expression' }, { include: '@whitespace' }],
+
+		stringVerbatim: [
+			{ regex: `(|'|'')[^']`, action: { token: 'string' } },
+			{ regex: `'''`, action: { token: 'string.quote', next: '@pop' } }
+		],
+
+		stringLiteral: [
+			{ regex: `\\\${`, action: { token: 'delimiter.bracket', next: '@bracketCounting' } },
+			{ regex: `[^\\\\'$]+`, action: { token: 'string' } },
+			{ regex: '@escapes', action: { token: 'string.escape' } },
+			{ regex: `\\\\.`, action: { token: 'string.escape.invalid' } },
+			{ regex: `'`, action: { token: 'string', next: '@pop' } }
+		],
+
+		bracketCounting: [
+			{ regex: `{`, action: { token: 'delimiter.bracket', next: '@bracketCounting' } },
+			{ regex: `}`, action: { token: 'delimiter.bracket', next: '@pop' } },
+			{ include: 'expression' }
+		],
+
+		comment: [
+			{ regex: `[^\\*]+`, action: { token: 'comment' } },
+			{ regex: `\\*\\/`, action: { token: 'comment', next: '@pop' } },
+			{ regex: `[\\/*]`, action: { token: 'comment' } }
+		],
+
+		whitespace: [
+			{ regex: nonCommentWs },
+			{ regex: `\\/\\*`, action: { token: 'comment', next: '@comment' } },
+			{ regex: `\\/\\/.*$`, action: { token: 'comment' } }
+		],
+
+		expression: [
+			{ regex: `'''`, action: { token: 'string.quote', next: '@stringVerbatim' } },
+			{ regex: `'`, action: { token: 'string.quote', next: '@stringLiteral' } },
+			{ regex: numericLiteral, action: { token: 'number' } },
+			{
+				regex: identifier,
+				action: {
+					cases: {
+						'@keywords': { token: 'keyword' },
+						'@namedLiterals': { token: 'keyword' },
+						'@default': { token: 'identifier' }
+					}
+				}
+			}
+		]
+	}
+};
diff --git a/src/monaco.contribution.ts b/src/monaco.contribution.ts
index cf90f679..74127a8c 100644
--- a/src/monaco.contribution.ts
+++ b/src/monaco.contribution.ts
@@ -7,6 +7,7 @@ import './abap/abap.contribution';
 import './apex/apex.contribution';
 import './azcli/azcli.contribution';
 import './bat/bat.contribution';
+import './bicep/bicep.contribution';
 import './cameligo/cameligo.contribution';
 import './clojure/clojure.contribution';
 import './coffee/coffee.contribution';