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Best free AI coding tools & plans.

Every way to code with AI for $0, in two flavors: hosted free tiers (sign up, start coding - no API key) and free or open-source tools where you bring your own key and pay the model provider directly. Prices verified July 2026.

Free hosted tiers - no API key needed

  1. #1

    Amp

    Sourcegraph's frontier coding agent for the terminal and editor. Amp is multi-model (GPT-5.5, Opus 4.8 and fast models) with three modes - deep, smart and rush - plus an Oracle sec...

    Free tier Terminal Agent
    View plan
  2. #2

    Devin

    Cognition's AI software engineer. Devin plans and executes complex engineering tasks - code migrations, PR review with visual QA, documentation, issue triage and bug fixing - and c...

    Free tier Cloud Agent
    View plan
  3. #3

    Google Jules

    Google's autonomous coding agent. Jules connects to your GitHub repositories, clones them to a Cloud VM, plans changes with Gemini 3 Pro, shows a diff for review and opens a PR. It...

    Free tier Cloud Agent
    View plan
  4. #4

    Groq

    Fast inference for open models on LPU hardware. Groq runs Llama 4 Scout at 594 TPS, Llama 3.3 70B at 394 TPS and Llama 3.1 8B Instant at 840 TPS, with linear per-million-token pric...

    Free tier Model Marketplace
    View plan
  5. #5

    Mistral AI

    European frontier AI lab. Mistral's Vibe agent runs long-horizon work and all-day coding in the CLI (Devstral), IDE (VS Code, JetBrains) and on the web, with remote coding agents a...

    Free tier LLM Plan
    View plan
  6. #6

    Ollama Cloud

    Run open-source LLMs locally or in the cloud. Ollama now offers an online coding plan with cloud access to open-source models (Llama 4, Mistral, etc.). A solid alternative to OpenC...

    Free tier Model Marketplace
    View plan
  7. #7

    OpenRouter

    The model gateway for AI apps. OpenRouter gives one OpenAI-compatible API to 400+ models across 70+ providers with auto-routing, fallback and prompt caching. The Free plan covers 2...

    Free tier Model Marketplace
    View plan

Free & BYO-key tools

The tool itself is free - you plug in your own API key (or nothing at all) and pay the model provider directly.

Aider Terminal Agent Free (BYO API key)

Best for developers who want git-native AI pair programming in the terminal
Cline IDE Extension Free (bring your own API key)

Best for developers who want full control, transparency, and model choice in VS Code or JetBrains with human-in-the-loop approval
Continue IDE Extension Free (BYO API key) - $20/mo managed plans coming

Best for developers who want an open-source, customizable AI assistant that works in their existing editor
Gemini CLI Terminal Agent Free (with Google account)

Most generous free tier - 1,000 requests/day with 1M context, free with a Google account
Pi Terminal Agent Free (BYO API key)

Most hackable - minimal terminal harness; ask Pi to extend itself with TypeScript skills, then ship the new behavior
Replit Agent Cloud Agent Free tier + paid plans

Best for non-developers - browser-based, builds full apps from natural language with one-click deploy
Zed Code Editor Free editor - AI: $10/mo or $100/yr

Best for performance-sensitive workflows and developers who want a native, fast editor with built-in AI and external agent support

New models & deals, once a month

New proprietary and open-source models worth trying, price drops, and the best deals on AI coding plans. No spam.

Sources: official sites · r/ClaudeAI · r/LocalLLaMA · r/ChatGPT. Plans and features may vary - check official sites for the latest. This roundup is regenerated each month from ai-plans.json.