Top Free AI Coding Tools & Agentic Workflows
Seven battle-tested, zero-cost AI coding tools to accelerate your development workflow—agents, IDEs, and editors you can start using today at zero subscription cost.
1. OpenCode
- Website: opencode.ai
- Category: Open-source AI coding agent
- Description: A free, open-source agent that helps you write code in your terminal, desktop app, or IDE extension. Works with any LLM provider (Ollama, OpenRouter, Gemini, DeepSeek)—zero subscription lock-in.
2. Google Antigravity
- Website: antigravity.google
- Category: Google's agent-first IDE
- Description: Google's agent-first IDE where autonomous agents plan, write, and verify code across files with generous Gemini usage limits.
- Jio SIM Offer: Users aged 18–25 on a ₹349+ unlimited 5G plan get 18 months of Google AI Pro free via the MyJio app.
3. Freebuff
- Website: freebuff.com
- Category: The free coding agent
- Description: Free CLI coding agent plus Freebuff Web for building full-stack apps. No subscription, no API key, no credits—supported by in-CLI text ads instead.
4. Jacq
- Website: jacquard.dev
- Category: Autonomous agent by Relace
- Description: Autonomous AI coding agent built on Relace's small models. Runs locally on macOS and Linux as well as in the cloud—resume threads and hand off work anytime.
5. ZCode
- Website: zcode.z.ai
- Category: Z.ai's agentic coding workbench
- Description: An agentic coding harness built around GLM models that plugs into your existing tools so you can plan, code, review, and deploy without friction.
6. Cline
- Website: cline.bot
- Category: Open-source agent for VS Code
- Description: Open-source autonomous coding agent inside your editor with Plan/Act modes and Model Context Protocol (MCP) integration. Creates files, executes terminal commands, and uses the browser with human approval.
7. Kilo Code
- Website: kilo.ai
- Category: Open-source agent for IDE, CLI & Cloud
- Description: Open-source AI coding agent for VS Code, JetBrains, CLI, and Cloud. Connect OpenRouter as a provider to access hundreds of free models on almost zero budget.