Code Web Chat

Code Web Chat is a free and open-source AI coding toolkit. You can use CWC in VS Code family of editors (Cursor, Antigravity, VSCodium etc.) for a much faster and cost efficient* development experience.

^{* Compared to coding agents.}

✍️ Construct coding prompts for...

Chatbots—ChatGPT, Gemini, Claude, Grok, DeepSeek, etc.
APIs—Gemini API, OpenRouter, local Ollama, etc.

💅 Apply responses—interactive edits integration with checkpoints for state restoration
🤙 Fully-featured—code completions, commit messages, checkpoints, skills, and more
🫰 Cost-efficient—zero-overhead prompts optimized for prompt caching
✋ Privacy-first—zero telemetry, operates 100% on your machine

Screenshot

Introduction

With its focus on context engineering, CWC proposes a non-agentic approach, where all the necessary for the task files, includnig useful examples, are picked with engineer's intent. Such guided model is easy to prompt and as accurate as it can get.

[!TIP] The prompt type Prune context will help you narrow down roughly picked context.

When pair-programming with Code Web Chat you foster codebase understanding, iterate on changes easier to review, and enter the flow state like in the good old days!

Enabling autofill in browser

Start using projects (also called gems or spaces) without the tedious copy and paste!

Like all of CWC, the extension is open-source and works with minimal permissions for your absolute privacy and security.

List of supported chatbots:

AI Studio
ChatGPT
Claude
Copilot
DeepSeek
Doubao
Gemini
GitHub Copilot
Grok
HuggingChat
Kimi
LMArena
Mistral
Open WebUI
OpenRouter
Qwen
Together
Yuanbao
Z AI

[!TIP] With the browser extension you can include markdown-parsed websites in context. Go to target website, click the extension's icon in the browser's toolbar and click Enable for context.

[!IMPORTANT] The Apply response button placed under responses is not a means of automatic output extraction, it's an alias for the original copy to s button. Review the content script for implementation details.

[!NOTE] Use port forwarding on port 55155 when using remote machine via SSH.

API tools for common tasks

🛠️ Edit Context
Work on your codebase with natural language instructions.

🛠️ Code Completions
Get accurate code at cursor from reasoning models.

🛠️ Intelligent Update
Fix malformed AI responses.

🛠️ Commit Messages
Meaningful summaries of changes adhering to your style.

Enterprise security

Code Web Chat operates exclusively on your machine. Your prompts are sent directly to chatbots via editor-browser communication channel run on local Websockets. For API tools, model providers are called directly.

Commands

Code completions

Code Web Chat: Code Completion - Get code-at-cursor using API tool.
Code Web Chat: Code Completion using... - ...with configuration selection.
Code Web Chat: Code Completion with Instructions - ...with instructions.
Code Web Chat: Code Completion with Instructions using... - ...with instructions and configuration selection.

Checkpoints

Code Web Chat: Checkpoints - Restore the overall workspace state to the saved checkpoint.
Code Web Chat: Create New Checkpoint - Save the current state of the workspace.

Context

Code Web Chat: Apply Context - Apply a saved context or save the current file selection.
Code Web Chat: Add File to Context - Search and add file (or parent folder via file action) to the context.
Code Web Chat: Remove File from Context - Search and remove file (or parent folder via file action) from the context.
Code Web Chat: Copy Context - Copy XML-formatted checked files from the Workspace view to the clipboard.
Code Web Chat: Copy Context of Open Editors - Copy XML-formatted checked files from the Open Editors view to the clipboard.
Code Web Chat: Find Paths in Clipboard - Select files based on paths found in the clipboard text.

Contributing

All contributions are welcome. Feel free to submit pull requests, feature requests and bug reports.

Robert Piosik