Supercharge your editor with AI that understands your codebase, streamlines development, and helps you write, refactor, and debug with ease.
Platforms
- Visual Studio Code
Apps similar to Twill AI include Cursor, which has a free version. Other options are Devin Desktop, GitHub Copilot, Superset and Waku. AI Coding Assistants like Twill AI are a crowded field, with more than 25 alternatives for Mac, Windows, Linux, the web and self-hosting.
Supercharge your editor with AI that understands your codebase, streamlines development, and helps you write, refactor, and debug with ease.
A multi-platform, AI-augmented coding companion ensuring secure development with unit test creation.




Trag enhances code review efficiency through AI, allowing specific instructions and pattern linting. Requires GitHub integration, free for open-source uses. Saves substantial engineer time by providing AI-reviewed code ahead of manual inspection.




A sandboxed AI agent orchestration platform built with Rust and GPUI. Run multiple AI coding agents (Claude Code, Codex, etc.) in isolated sandbox environments with full terminal access.

The most no-nonsense locally hosted (or API hosted) AI code completion plugin for Visual Studio Code, like GitHub Copilot but 100% free and 100% private.


Experience powerful AI without limits. Use our desktop app for everyday AI assistance, or boost your coding productivity with our JetBrains plugin.



Build and review software with teammates and agents in shared threads, with every conversation and code change kept in context.


Supermaven is a coding assistant that uses AI to help you write code faster. Breeze through code refactoring with Supermaven's fast and accurate suggestions.


Open-source Claude Design alternative. One-click import your Claude Code / Codex API key. Prompt ? prototype / slides / PDF. Multi-model (Claude, GPT, Gemini, Kimi, GLM, Ollama). BYOK, local-first, MIT.




Open source tool centered on AI-driven full stack app development, Nut generates bug analysis via Replay.io recordings and runtime behavior capturing, offering AI developers explanations for effective resolutions. Early adopters enjoy free access for feedback contributions.


Aider is a command line tool that lets you pair program with GPT-3.5/GPT-4, to edit code stored in your local git repository. Aider will directly edit the code in your local source files, and git commit the changes with sensible commit messages.

CodeGeeX is an AI-based coding assistant, which can suggest code in the current or following lines. It is powered by a large-scale multilingual code generation model with 13 billion parameters, pretrained on a large code corpus of more than 20 programming languages.


