In this guide
You don't have to pay to start using AI coding tools seriously. Between genuinely generous free tiers on commercial products and fully free open-source options, it's possible to build real projects without a subscription — you just need to know where the free limits actually are.
The best free options
| Tool | What's free | Main limit |
|---|---|---|
| GitHub Copilot | 2,000 completions + 50 chat/month | Limited agent mode usage |
| Cline | The tool itself, fully | You pay your own model API usage |
| Aider | The tool itself, fully | You pay your own model API usage |
| Windsurf (Devin Desktop) | Generous daily/weekly quota + Cascade agent | Quota resets, not unlimited |
| Cursor (Hobby) | Limited Agent requests + Tab completions | Tight usage caps |
| Lovable | ~30 build credits/month + free Visual Edits | Build credits run out fast on complex apps |
| Bolt.new | 1M tokens/month | Tokens scale with project size |
| v0 | $5 monthly credits | Small allowance for heavier use |
Free-tier limits as of July 2026 — verify current allowances on each vendor's site, as these change often.
Fully free, forever: Cline and Aider
Cline and Aider are the only tools on this list with no paid tier at all — they're open source, and your only cost is the model API usage you choose to pay for directly. If you already have API credits with a model provider, or want to experiment with a local model, these are the closest thing to a genuinely free, unrestricted AI coding tool.
Best free tier from a commercial product: GitHub Copilot
Among tools with a paid tier, Copilot's free plan is the most usable for daily work — 2,000 completions a month covers a meaningful amount of everyday coding, and it works across VS Code, JetBrains, and GitHub.com without a credit card.
Best free agentic experience: Windsurf
If you specifically want to try autonomous agentic editing (not just completions) for free, Windsurf's free tier includes real Cascade agent access with a daily/weekly quota, making it the most generous free entry point into full agentic coding.
When it's worth paying
- You're running out of daily/monthly quota consistently — not just occasionally.
- You need faster, priority access during busy periods.
- Your project has grown large enough that free-tier limits (tokens, credits) no longer fit a full working session.
- You need team features — shared billing, centralised admin, SSO.
Key takeaways
- Cline and Aider are fully free and open source — you only pay for your own model API usage.
- GitHub Copilot has the most usable free tier among commercial products for everyday completions.
- Windsurf offers the most generous free access to real agentic (not just autocomplete) coding.
- Upgrade only once you're consistently hitting free-tier limits, not just occasionally.
Frequently asked questions
Cline and Aider are both fully free and open source with no paid tier — your only cost is the model API usage you choose to pay your provider directly, and you can even use free or local models with both.