diff --git a/wacc-compiler b/wacc-compiler
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diff --git a/wacc-syntax/.vscodeignore b/wacc-syntax/.vscodeignore
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+++ b/wacc-syntax/.vscodeignore
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+.vscode/**
+.vscode-test/**
+.gitignore
+vsc-extension-quickstart.md
diff --git a/wacc-syntax/CHANGELOG.md b/wacc-syntax/CHANGELOG.md
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+# Change Log
+
+All notable changes to the "wacc-syntax" extension will be documented in this file.
+
+Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how to structure this file.
+
+## [Unreleased]
+
+- Initial release
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diff --git a/wacc-syntax/README.md b/wacc-syntax/README.md
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+### INTELLIWACC
+
+This is the IntelliWACC extension for WACC code development; featuring syntax highlighting, error messages/highlighting and imports.
+
+This extension was developed as a part of the "WACC Extensions" milestone 2025.
+
+Authored by Alex L, Gleb K, Guy C and Jonny T
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diff --git a/wacc-syntax/README.pdf b/wacc-syntax/README.pdf
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diff --git a/wacc-syntax/extension.js b/wacc-syntax/extension.js
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+++ b/wacc-syntax/extension.js
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+// Developed using the VSC language extension tutorial
+// https://code.visualstudio.com/api/language-extensions/overview
+
+const vscode = require('vscode');
+const { execSync } = require('child_process');
+const { parse } = require('path');
+
+function activate(context) {
+    console.log('IntelliWACC is now active!');
+
+    let diagnosticCollection = vscode.languages.createDiagnosticCollection('wacc');
+    context.subscriptions.push(diagnosticCollection);
+
+    vscode.workspace.onDidSaveTextDocument((document) => {
+        if (document.languageId !== 'wacc') return;
+
+        let diagnostics = [];
+        let errors = generateErrors(document.getText(), document.fileName);
+        errors.forEach(error => {
+            console.log(error);
+            let range = new vscode.Range(error.line - 1 , error.column - 1, error.line - 1, error.column + error.size);
+            let diagnostic = new vscode.Diagnostic(range, error.errorMessage, vscode.DiagnosticSeverity.Error);
+            diagnostics.push(diagnostic);
+        });
+
+        diagnosticCollection.set(document.uri, diagnostics);
+    });
+}
+
+function deactivate() {
+    console.log('IntelliWACC is deactivating...');
+}
+
+function generateErrors(code, filePath) {
+    try {
+        console.log("generating errors")
+        const fs = require('fs');
+        const tmpFilePath = parse(filePath).dir + '/.temp_wacc_file.wacc';
+        fs.writeFileSync(tmpFilePath, code);
+
+        let output;
+        try {
+            const waccExePath = `${__dirname}/../wacc-compiler`;
+            output = execSync(`${waccExePath} ${tmpFilePath}`, { encoding: 'utf8', stdio: 'pipe' });
+        } catch (err) {
+            console.log("Error running compiler");
+            output = err.stdout;
+            console.log(output);
+        }
+        let errors = [];
+        errorRegex = /\(line ([\d]+), column ([\d]+)\):\n([^>]+)([^\^]+)([\^]+)\n([^\n]+)([^\(]*)/g
+        while((match = errorRegex.exec(output)) !== null) {
+            console.log(match[5]);
+            errors.push({
+                line: parseInt(match[1], 10),
+                column: parseInt(match[2], 10),
+                errorMessage: match[3].trim(),
+                size: match[5].length - 1
+            });
+        }
+        return errors;
+    } catch (err) {
+        console.error('Error running compiler:', err);
+        return [];
+    }
+}
+
+module.exports = {
+    activate,
+    deactivate
+};
diff --git a/wacc-syntax/language-configuration.json b/wacc-syntax/language-configuration.json
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index 0000000..7c24c88
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+++ b/wacc-syntax/language-configuration.json
@@ -0,0 +1,28 @@
+{
+    "comments": {
+        // symbol used for single line comment. Remove this entry if your language does not support line comments
+        "lineComment": "#",
+    },
+    // symbols used as brackets
+    "brackets": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"]
+    ],
+    // symbols that are auto closed when typing
+    "autoClosingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""],
+        ["'", "'"]
+    ],
+    // symbols that can be used to surround a selection
+    "surroundingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""],
+        ["'", "'"]
+    ]
+}
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diff --git a/wacc-syntax/package-lock.json b/wacc-syntax/package-lock.json
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+{
+  "name": "wacc-syntax",
+  "version": "0.0.1",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "wacc-syntax",
+      "version": "0.0.1",
+      "engines": {
+        "vscode": "^1.97.0"
+      }
+    }
+  }
+}
diff --git a/wacc-syntax/package.json b/wacc-syntax/package.json
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--- /dev/null
+++ b/wacc-syntax/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "wacc-syntax",
+  "displayName": "intelliWACC",
+  "description": "WACC language support features",
+  "version": "0.0.1",
+  "engines": {
+    "vscode": "^1.97.0"
+  },
+  "categories": [
+    "Programming Languages"
+  ],
+  "contributes": {
+    "languages": [{
+      "id": "wacc",
+      "aliases": ["WACC", "wacc"],
+      "extensions": [".wacc"],
+      "configuration": "./language-configuration.json"
+    }],
+    "grammars": [{
+      "language": "wacc",
+      "scopeName": "source.wacc",
+      "path": "./syntaxes/wacc.tmLanguage.json"
+    }],
+    "properties": {
+      "files.exclude": {
+        "type": "object",
+        "default": {
+          "**/.temp_wacc_file.*": true
+        },
+        "description": "Configure patterns for excluding files and folders."
+      }
+    }
+  },
+  "scripts": {
+    "build": "vsce package"
+  },
+  "main": "./extension.js"
+}
diff --git a/wacc-syntax/syntaxes/wacc.tmLanguage.json b/wacc-syntax/syntaxes/wacc.tmLanguage.json
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+++ b/wacc-syntax/syntaxes/wacc.tmLanguage.json
@@ -0,0 +1,56 @@
+{
+	"$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
+	"name": "WACC",
+	"scopeName": "source.wacc",
+	"fileTypes": [
+		"wacc"
+	],
+	"patterns": [
+		{
+			"match": "\\b(true|false)\\b",
+			"name": "keyword.constant.wacc"
+		},
+		{
+			"match": "\\b(int|bool|char|string|pair|null)\\b",
+			"name": "storage.type.wacc"
+		},
+		{
+			"match": "\".*?\"",
+      "name": "string.quoted.double.mylang"
+		},
+		{
+			"match": "\\b(begin|end)\\b",
+			"name": "keyword.other.unit"
+		},
+		{
+			"match": "\\b(if|then|else|fi|while|do|done|skip|is)\\b",
+			"name": "keyword.control.wacc"
+		},
+		{
+			"match": "\\b(read|free|print|println|newpair|call|fst|snd|ord|chr|len)\\b",
+			"name": "keyword.operator.function.wacc"
+		},
+		{
+			"match": "\\b(return|exit)\\b",
+			"name": "keyword.operator.wacc"
+		},
+		{
+			"match": "'[^']{1}'",
+			"name": "constant.character.wacc"
+		},
+		{
+      "match": "\\b([a-zA-Z_][a-zA-Z0-9_]*)\\s*(?=\\()",
+      "name": "variable.function.wacc"
+    },
+		{
+      "match": "\\b([a-zA-Z_][a-zA-Z0-9_]*)\\b",
+      "name": "variable.other.wacc"
+    },
+		{
+      "match": "#.*$",
+      "name": "comment.line"
+    }
+	
+	]
+
+}
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diff --git a/wacc-syntax/vsc-extension-quickstart.md b/wacc-syntax/vsc-extension-quickstart.md
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@@ -0,0 +1,29 @@
+# Welcome to your VS Code Extension
+
+## What's in the folder
+
+* This folder contains all of the files necessary for your extension.
+* `package.json` - this is the manifest file in which you declare your language support and define the location of the grammar file that has been copied into your extension.
+* `syntaxes/wacc.tmLanguage.json` - this is the Text mate grammar file that is used for tokenization.
+* `language-configuration.json` - this is the language configuration, defining the tokens that are used for comments and brackets.
+
+## Get up and running straight away
+
+* Make sure the language configuration settings in `language-configuration.json` are accurate.
+* Press `F5` to open a new window with your extension loaded.
+* Create a new file with a file name suffix matching your language.
+* Verify that syntax highlighting works and that the language configuration settings are working.
+
+## Make changes
+
+* You can relaunch the extension from the debug toolbar after making changes to the files listed above.
+* You can also reload (`Ctrl+R` or `Cmd+R` on Mac) the VS Code window with your extension to load your changes.
+
+## Add more language features
+
+* To add features such as IntelliSense, hovers and validators check out the VS Code extenders documentation at https://code.visualstudio.com/docs
+
+## Install your extension
+
+* To start using your extension with Visual Studio Code copy it into the `<user home>/.vscode/extensions` folder and restart Code.
+* To share your extension with the world, read on https://code.visualstudio.com/docs about publishing an extension.
diff --git a/wacc-syntax/wacc-syntax-0.0.1.vsix b/wacc-syntax/wacc-syntax-0.0.1.vsix
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