Best Free AI Coding Assistants in 2026
There are two economics in AI coding assistants and they are not comparable. One is a subscription: $10 or $20 a month, an allowance of requests, and the vendor absorbs the model cost. The other is bring your own key: the tool is free and open source, and you pay the model provider directly for what you use.
Which is cheaper depends entirely on how hard you work the thing. A light user pays more per token on a subscription and less overall. A heavy user on a subscription hits a limit; a heavy user on their own key gets a bill that reflects reality.
Here is what each free tier gives you, checked August 2026.
Quick comparison
| Tool | Free tier | Paid entry | Rating | Reviews |
|---|---|---|---|---|
| Cline | Free, open source | Your own model API costs | not rated | - |
| GitHub Copilot | Yes | $10/mo (Pro) | not rated | - |
| Amazon Q Developer | 50 agentic requests/mo | $19/user/mo (Pro) | 4.5 | 35 |
| Cursor | Free (Hobby) | $20/mo (Pro) | 4.7 | 319 |
| Windsurf | Free | $20/mo (Pro) | 4.3 | 81 |
| Devin Desktop | Free | $20/mo (Pro) | not rated | - |
Ratings aggregated by Toolradar. Every sample here is small, for the reason explained below.
Copilot at $10 is the cheapest subscription by half. Cline is the only one where the tool itself never costs anything.
Why nothing in this category has meaningful ratings
Cursor aggregates to 4.7 across 319 reviews. Windsurf to 4.3 across 81. Amazon Q Developer to 4.5 across 35. GitHub Copilot and Cline have no aggregated rating at all, despite Copilot being the most widely used tool in this article.
That is not a hole in our data, it is a property of the category. Business software directories verify reviewers as buyers within an organisation, and developer tools are adopted individually, often before anyone in procurement hears about them. Copilot in particular reaches most of its users through a GitHub subscription rather than a software purchase, so there is no purchase event for a directory to hang a review on.
The practical consequence: use the free tiers rather than the scores. Every tool here has one, they take an afternoon to compare on your own codebase, and that comparison is worth more than any number on this page. Cursor's 4.7 across 319 reviews is the only figure with any weight, and it still describes a few hundred people.
GitHub Copilot: the cheapest real subscription
Copilot has a free tier, with Pro at $10 a month, Pro+ at $39 and Business at $19 per user.
At $10, Copilot is half the price of Cursor and Windsurf, and the free tier is a genuine working allowance rather than a demo. For anyone whose main use is completion while typing rather than multi-file agentic work, this is the value pick and it is not close.
It is also the least disruptive to adopt. It lives inside the editor you already use rather than asking you to change editors, which matters if your team is not migrating together.
Where it falls behind is on agentic tasks that span many files. That is what the newer tools were built for, and it shows.
Cline: free forever, pay only for tokens
Cline is free and open source. You supply your own model API key and pay the provider directly.
This is the honest arrangement. There is no subscription, no request allowance, no tier that suddenly matters. If you use it for an hour you pay for an hour of tokens; if you leave it running an agentic task all afternoon, you pay for that.
For light users it is almost free. For heavy users it can cost more than any subscription here, and that is the correct signal rather than a failure: the compute was genuinely consumed.
Being open source, you can also point it at a local model and pay nothing at all, which pairs naturally with the local LLM tooling covered in our LLM gateways guide.
The cost is setup and the absence of a support contract.
Cursor: the editor that changed the category
Aggregated rating 4.7 across 319 reviews, the largest sample here. Cursor's free Hobby tier exists, with Pro at $20 a month and Teams at $40 per user.
Cursor is an editor rather than a plugin, and that is the point: it can see and edit across your whole project because the whole project is its context. For refactors that span a dozen files, it does things a completion tool cannot.
The free tier is a real trial rather than a working plan. You will hit the limit quickly if you use the agent seriously, which is a fair reflection of what agentic requests cost to serve.
At $20 against Copilot's $10, the question is whether you do multi-file work often enough. If you mostly complete lines, you are paying double for capability you do not use.
Windsurf: the same idea, executed calmly
Aggregated rating 4.3 across 81 reviews. Windsurf is free, with Pro at $20 a month, Max at $200 and Teams at $40 per user.
Windsurf competes directly with Cursor and differentiates on feel: its agent tends to take smaller, more reviewable steps rather than rewriting large areas and asking you to trust it. Which you prefer is genuinely a matter of temperament.
The $200 Max tier signals who the heavy users are, and it is worth reading as a warning: if you would need Max, price the bring-your-own-key route first, because at that intensity the maths often favours it.
Amazon Q Developer: free with a countable limit
Aggregated rating 4.5 across 35 reviews. Amazon Q Developer's free tier includes 50 agentic requests a month, with Pro at $19 per user.
Fifty is the clearest free allowance in this comparison. You know what you have and you can decide whether it is enough without running an experiment, which is more than the other vendors offer.
Its natural home is AWS work. If your day involves Lambda, IAM policies and CloudFormation, Q knows that ecosystem better than a general assistant does, and the free fifty requests go further because the answers land first time.
Outside AWS it is competent rather than compelling.
Devin Desktop: the agentic end of the range
Devin Desktop is free, with Pro at $20, Max at $200, and Teams at $80 plus $40 per seat.
Devin aims further than assistance: give it a task, let it work, review the result. When it fits the task it is remarkable, and when it does not you have spent tokens on a branch you will discard.
The Teams pricing shape, a platform fee plus per seat, is worth noticing because it is the only one here that charges before anyone logs in.
What free tiers cost in this category
Your code is context. Whatever you have open goes to the model. Free tiers are also generally the ones with the loosest data terms, so check the setting before pointing any of these at a client repository or anything proprietary. This is the single most common mistake teams make here, and it is invisible until it is not.
Review is not optional. Agentic tools produce confident, plausible diffs at a rate that outpaces careful reading. The productivity gain is real and it is realised at review time, not generation time. A team that merges what the agent wrote without reading it has bought a faster way to create bugs.
How to choose
For most developers, GitHub Copilot at $10, because completion is what you actually do all day and it is half the price of the agentic tools.
For multi-file refactors and agentic work, Cursor or Windsurf at $20. Try both free tiers; they differ in temperament more than capability.
For heavy use or full control, Cline, free and open source, paying your model provider directly. At high intensity it is usually cheaper than a subscription, and it can run against a local model for nothing.
For AWS-heavy work, Amazon Q Developer, whose free fifty requests are the clearest allowance here.
The common error is buying a $20 agentic subscription to do $10 completion work. Watch what you actually use for a fortnight on the free tiers before committing.
Related: our guide to AI coding agents goes deeper on the agentic end, and the Dupple reviews directory has current pricing.
FAQ
Which AI coding assistant has the best free tier?
GitHub Copilot's is the most usable for everyday completion, and Amazon Q Developer's 50 agentic requests a month is the clearest allowance to reason about. Cline is free permanently because it is open source, though you pay your model provider for tokens.
How much do AI coding assistants cost?
GitHub Copilot Pro is $10 a month, Amazon Q Developer Pro $19, and Cursor, Windsurf and Devin Desktop all $20. Heavy tiers reach $200 on Windsurf Max and Devin Max. Cline has no subscription at all. Checked August 2026.
Is bring-your-own-key cheaper than a subscription?
For light use, usually yes, sometimes dramatically. For sustained agentic work it is often more expensive, because you pay for the compute you actually consume instead of an allowance the vendor subsidises. Run a fortnight on your own key and compare the bill to $20 before deciding.
Can I run an AI coding assistant offline?
Yes, with Cline pointed at a locally hosted model. Quality is below the frontier models but the privacy and cost characteristics are absolute: nothing leaves your machine and nothing is metered.
Which AI coding assistant is rated highest?
Cursor, at 4.7 aggregated across 319 reviews, which is also the largest sample in this category. Windsurf sits at 4.3 across 81. GitHub Copilot, the most widely used tool here, has no aggregated rating at all, because it reaches most users through a GitHub subscription rather than a software purchase a directory can verify.
Why do developer tools have so few reviews?
Because they are adopted individually rather than bought through procurement, and business software directories verify reviewers as customers of an organisation. A tool can have millions of users and a few dozen reviews. In this category the free tiers are a far better guide than the scores, and they cost an afternoon to compare.
