Best Free Code assistant AI tools

little-coder is a Pi-based coding agent for runnin...

little-coder is a Pi-based coding agent for running 5–25 GB local LLMs via llama.cpp or Ollama, offering Python/Node CLIs and TypeScript extensions, reproducible benchmarks, build/serve guides, and tools for local code generation, on-device development, and evaluation.

agentica is an open-source AI coding assistant and...

agentica is an open-source AI coding assistant and IDE offering code completion, generation, debugging, review, and PR workflows. Supports standalone IDE and VS Code, local/cloud/OpenAI-compatible models, API key routing, self-hosting and extensible integrations.

Devstral 2 and Devstral Small 2 are open-source co...

Devstral 2 and Devstral Small 2 are open-source coding models designed for autonomous code automation and development, offering state-of-the-art performance and cost-efficiency.

Kat Dev is an AI code intelligence tool that assis...

Kat Dev is an AI code intelligence tool that assists software engineers by generating high-quality code, implementing features, fixing bugs, and optimizing performance. It supports multilingual environments and integrates seamlessly into existing workflows.

Qwen-Code is an AI-driven coding assistant designe...

Qwen-Code is an AI-driven coding assistant designed for developers. It enhances code understanding, automates tasks like pull requests, generates unit tests, and improves documentation, making it suitable for both enterprise and small-team development.

OpenAI Codex CLI is a terminal-based, open-source ...

OpenAI Codex CLI is a terminal-based, open-source coding agent that uses natural language to automate development tasks like code generation, testing, refactoring, and codebase understanding, with secure sandboxed execution and Git integration.

Kilo Code is an open-source AI agent extension for...

Kilo Code is an open-source AI agent extension for VS Code that enhances coding efficiency by generating code, automating tasks, and providing intelligent suggestions. It supports real-time developer assistance and integrates with multiple AI models for future expansion.

OpenCode.ai is an open-source AI coding agent that...

OpenCode.ai is an open-source AI coding agent that runs directly in your terminal, IDE, or desktop. It connects to 75+ LLM providers, supports offline use, and enables multi-session collaboration for code review and debugging.

Claude Code is an AI-powered coding assistant that...

Claude Code is an AI-powered coding assistant that operates within the terminal, automating tasks like editing files, fixing bugs, executing tests, and managing git workflows. It enhances developer productivity through natural language commands and real-time support.

Roo Code is an AI-powered coding assistant that in...

Roo Code is an AI-powered coding assistant that integrates with VS Code, enabling developers to automate tasks, execute commands, and optimize code. It supports multiple AI models, customizable roles, and adaptive autonomy for efficient software development.

Bolt.diy is an open-source AI-powered platform for...

Bolt.diy is an open-source AI-powered platform for developing, running, and deploying full-stack web applications using multiple LLMs. It features an integrated terminal, version control, and seamless model integration, making AI-assisted coding more efficient and flexible.

Aider is an AI-powered pair programming tool that ...

Aider is an AI-powered pair programming tool that helps developers collaborate with LLMs for editing, refactoring, and debugging code within Git repositories. It supports multiple languages and integrates with IDEs and editors for real-time updates.

gptbox is a Windows application that integrates Ch...

gptbox is a Windows application that integrates ChatGPT into the taskbar, offering AI-powered assistance for composing emails, drafting documents, and generating code snippets, streamlining productivity for developers, writers, and busy professionals.

Cline is an autonomous coding agent integrated int...

Cline is an autonomous coding agent integrated into your IDE, enhancing software development through precise file management, command execution, and web interaction with a focus on security and user oversight.

Jots helps developers build Slow Thinking habits t...

Jots helps developers build Slow Thinking habits through short daily reflection sessions, a distraction-free editor and VSCode extension, mood and progress tracking, AI summaries highlighting trends, and a career-coach chat to turn work into actionable learning.

Folderer is an AI code‑generation platform that in...

Folderer is an AI code‑generation platform that integrates with GitHub, automatically committing code that matches existing style and best practices. Developers can request, iterate, and deploy components for frameworks like React and Next.js while maintaining a clean commit history.

Python Converter is an online tool that efficientl...

Python Converter is an online tool that efficiently translates code between Python and various programming languages, while also handling Python type conversions. It supports cross-platform development and ensures code integrity, aiding programmers in their coding tasks.

AI Interview Copilot delivers real‑time transcript...

AI Interview Copilot delivers real‑time transcription in 57 languages, instant image analysis, GPT‑4o responses, and on‑the‑spot code snippets. One‑click question submission, seamless prompt switching, and cross‑device clipboard sync keep interview workflow smooth.

Pixelcode is a Chrome extension that extracts code...

Pixelcode is a Chrome extension that extracts code from screenshots, images, PDFs, and video frames, recognizes over 30 programming languages, preserves formatting, and copies snippets directly to the clipboard for use in any editor.

NVIDIA AI Workbench unifies building, training, an...

NVIDIA AI Workbench unifies building, training, and deploying AI models on NVIDIA GPUs. It integrates Jupyter, preconfigured libraries, Docker, automatic GPU allocation, multi‑node scaling, and real‑time monitoring, supporting TensorFlow, PyTorch, and Hugging Face.

Leetcode Wizard is a desktop app that AI‑analyzes ...

Leetcode Wizard is a desktop app that AI‑analyzes any Leetcode question, ranks algorithms by time complexity, auto‑generates code and edge‑case tests, offers complexity analysis, supports multiple languages, a separate web view for results while remaining invisible to proctoring software.

SamaritanAI simplifies open source contributions b...

SamaritanAI simplifies open source contributions by visualizing complex codebases as navigable graphs, helping users identify necessary file changes, manage tasks, and gain insights on GitHub issues, thereby enhancing overall productivity for developers.

Hands AI is an open-source platform that automates...

Hands AI is an open-source platform that automates repetitive software engineering tasks, supports code generation, and aggregates verified problem sets. It fosters collaboration among users and integrates with various large language model providers for enhanced productivity.

OpenDevin is an open-source project replicating an...

OpenDevin is an open-source project replicating and enhancing Devin, an AI engineer for software tasks. It offers a sandboxing environment for code execution, integrating a chat interface and browser for user-friendly development. Aimed at simplifying software engineering, it welcomes contributions for research and development.

Coddy.Tech offers free interactive coding lessons ...

Coddy.Tech offers free interactive coding lessons across many languages and AI prompt engineering, featuring an in‑browser editor, streak tracking, achievements, AI debugging, a community leaderboard, and certificates for LinkedIn. It runs on iOS, Android, and web.

Command‑G is an AI copilot for Xcode that delivers...

Command‑G is an AI copilot for Xcode that delivers real‑time code completion via Codeium and ChatGPT context for on‑the‑fly problem solving, while respecting developer privacy and requiring macOS 12+, and seamless integration into the IDE.

How2 is an AI‑powered command‑line helper that sug...

How2 is an AI‑powered command‑line helper that suggests Unix shell commands directly from a terminal. It recommends concise Bash/Zsh sequences, can generate scripts, includes a StackOverflow search flag, supports PowerShell, and runs safely without auto‑execution.

Code Genius is an AI‑powered assistant for React, ...

Code Genius is an AI‑powered assistant for React, Vue JS, and Tailwind CSS that generates reusable components, offers syntax analysis, optimization tips, automated unit tests, and a chat interface for code queries, while syncing with GitHub.

ownAI lets users build, host, and deploy custom AI...

ownAI lets users build, host, and deploy custom AI assistants without coding. Create assistants for personal tasks, marketing, or support, with data hosted on your domain. Import knowledge bases, run models locally, and access open‑source code on GitHub.

Kel is an AI-powered CLI tool that simplifies rep...

Kel is an AI-powered CLI tool that simplifies repetitive tasks, maximizes productivity, and elevates intelligence in command line interactions. It integrates with leading Language Model services to optimize CLI experiences for smooth and smart operations.