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Aider Review (2026) — Honest Take for Free Users
Freeopen-sourcePaul Gauthier
Aider, from Paul Gauthier, is an AI coding assistant that autocompletes and chats about your code. On its Open Source plan it is genuinely usable, not a teaser.
Below: what you actually get for free, where the limits sit, and who should skip it.
What it does well
- Real code capability on the Open Source tier — no credit card to start.
- Practical for everyday use; outputs are usable, not just demos.
- Actively maintained by Paul Gauthier; Terminal pair is a current highlight.
Pros
- No-cost entry with meaningful features.
- Backed by Paul Gauthier, so it is actively maintained.
- Good fit for users who want an AI coding assistant that autocompletes and chats about your code without paid subscriptions.
Cons
- Support is community forums and issue trackers unless you pay for a support plan.
- Less specialized than dedicated tools for adjacent tasks.
- No one owes you a fix on a deadline — roadmap and bug priority are the maintainers' call.
What it costs
Aider is open source, so the core product is free to use and stays that way.
Plenty of open-source projects also sell hosting, support or an enterprise edition alongside the free release — check the project's own pricing page for what, if anything, is sold on top.
Best alternatives
- GitHub Copilot — A mainstream AI coding assistant with a useful free tier: 2,000 completions/month and 50 chat messages (code).
- Cursor — AI-first code editor built on VS Code (code).
- Codeium — Truly unlimited free AI code completions (code).
FAQ
Is Aider free? Yes — it is open source and free to use in full.
Do I need a credit card? No, to start.
Best for? an AI coding assistant that autocompletes and chats about your code without paying.