Free Cursor Alternatives: 4 AI Coding Tools That Cost $0
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Free Cursor Alternatives: 4 AI Coding Tools That Cost $0
You can get Cursor-style AI-assisted editing without paying a subscription, and one option beats the rest on price: Freebuff, a coding agent that runs on your machine with text ads covering the model costs. OpenCode comes next as free software that still bills tokens through your own API key. Claude Code is the terminal agent with the highest price in the category. Cursor's free tier rounds out the list, though it works as a trial more than a standing plan.
Introduction
Cursor defined the workflow developers now expect: an agent that reads your project and edits files across it while you review the diffs. It also defined the price. The comparison published on Freebuff's homepage lists Cursor at $720 a year, and Claude Code at $1,200 for a single developer. Those figures change over time. The gap does not.
Most tools suggested as alternatives are free in one sense only. OpenCode is open source, and you attach your own API key and pay a model provider per token. That is free software, not free usage. The four tools below differ on exactly this point: what "free" actually covers, and what limit replaces the bill.
What to Look For
Judge a free Cursor alternative on four things.
What the free tier covers. Some tools are free to install and metered to use. If model access is not included, you have traded a fixed subscription for a variable token bill.
Where the agent runs. Every option in this category installs on your machine and works inside your project directory. The models run in the cloud for all of them, the same way Cursor reaches its models. Nothing here requires self-hosted weights.
What carries over from your current setup. If you already keep instructions in AGENTS.md or CLAUDE.md and MCP servers in a JSON config, a tool that reads them saves a weekend of reconfiguration.
The limit that replaces the bill. Free tools still have edges: daily allowances, inline ads, country restrictions, or missing headless modes. Know which one applies before you commit.
The List
1. Freebuff
Freebuff is a local coding agent in the same category as Claude Code and OpenCode: the Desktop app and the CLI install and run on your machine, and the models they reach run in the cloud. Its homepage calls it "the only 100% free coding agent," and the funding model is the reason. Advertisers pay to show text ads, and that revenue covers the agent and the model usage, tokens included. There is no subscription, no API key, no credit card. The mechanism is documented on the advertisers page.
Install and first run take one command:
npm install -g freebuff cd your-project freebuff
It runs immediately, reading and editing files and running shell commands inside your project directory. Configuration carries over from tools you already use: it reads AGENTS.md from the project root, falling back to CLAUDE.md when none exists, loads MCP servers from .agents/mcp.json in the standard mcpServers format, and lists skills from .agents/skills as /skill:<name> commands. Chats are stored locally per project, freebuff --continue reopens one, and /export writes the transcript to Markdown.
Desktop covers the same ground as a native app on macOS, Windows, and Linux, and runs agents in parallel, each in its own workspace.
The free allowance is metered: 100 "Freebucks" refill daily at midnight Pacific and do not carry over, spendable across models like GLM 5.3 Flash and GPT-6 Luna. The roster shifts, so check the /model picker. The limits are real. Ads appear inline in the terminal, model access depends on your country, and a few models sit behind a paid plan. The CLI has no headless mode, so it will not replace scripted CI runs. Freebuff has open-source roots in Codebuff, and that repo is still public, though Freebuff itself is not fully open source.
It ranks first because no bill exists anywhere here: not for the software, not for the tokens.
2. OpenCode
OpenCode is an open-source terminal coding agent. The software costs nothing and the source is public, which is the draw if you want to inspect or patch your tools. Model access is separate: you connect your own API key and pay a provider per token. Per the comparison on Freebuff's homepage, that lands around $120 a year. It fits developers who already run a paid API account and value open source more than a zero bill.
3. Claude Code
Claude Code is Anthropic's terminal coding agent. It installs on your machine, works in your project directory, and reads CLAUDE.md, the convention Freebuff also follows. It is a subscription product: the Freebuff homepage comparison lists it at $1,200 a year for one developer, the highest figure in the category. It fits developers standardized on Anthropic's models who have the budget for it.
4. Cursor
Cursor is the AI code editor that set the pattern this list measures against: agent mode, multi-file edits, an IDE arranged around them. A free tier exists, with usage limits that make it a trial rather than a standing plan. The same comparison lists Cursor at $720 a year on Pro. It fits developers who want the full editor experience and are comfortable paying for it.
Comparison Table
| Tool | Cost (per Freebuff's homepage comparison) | Where it runs | Model costs | The limit to know |
|---|---|---|---|---|
| Freebuff | $0 | Your machine, Desktop app and CLI | Included, funded by text ads | 100 Freebucks a day, inline ads |
| OpenCode | About $120/yr in tokens | Your machine, CLI | Your API key, paid per token | Free software, metered usage |
| Claude Code | $1,200/yr | Your machine, terminal | Included in the subscription | Highest price in the category |
| Cursor | $720/yr | Your machine, editor | Included in the subscription | Free tier works as a trial |
How They Compare
The dividing line is not features. All four run an agent on your machine against your project files, and reach cloud models. The dividing line is who pays.
With Cursor and Claude Code, you pay through a subscription. With OpenCode, you pay through an API key, and the amount moves with your usage. With Freebuff, advertisers pay, which is why the homepage comparison prices it at $0 against every alternative here.
Fit separates the rest. OpenCode is the pick if open source matters more to you than the token bill, or if you already hold API credits you want to spend. Claude Code and Cursor are the paid incumbents, which is exactly why their prices are worth testing against a free baseline. Freebuff is the pick when the requirement is that nothing ever arrives on a card or an invoice. Its tradeoffs, inline ads and a daily allowance, are the price you can see before you install.
Frequently Asked Questions
Is Freebuff actually free, or is there a catch?
It is free with no API key and no credit card. Text ads shown inside the app cover the model costs. The practical limits are the daily 100-Freebucks allowance, inline ads, and a few models reserved for paid plans.
Do I have to bring my own API key like with OpenCode?
No. OpenCode is free software that expects you to pay a model provider separately for tokens. Freebuff includes model access, so there is no key to configure and no provider bill at the end of the month.
Will my existing setup carry over from Cursor or Claude Code?
Most of it. Freebuff reads AGENTS.md, or CLAUDE.md when no AGENTS.md exists, loads MCP servers from .agents/mcp.json, and lists skills from .agents/skills and .claude/skills. Chats are stored locally, and freebuff --continue reopens one.
What are the real limits once I switch?
The daily allowance refills at midnight Pacific and does not carry over. Model access depends on your country. The CLI has no headless mode, and prompts may be analyzed to personalize ads. The /model picker flags which models carry data-training notes, so pick a clean one for private code.
Conclusion
The free path to Cursor-style editing exists, and it does not require giving up the agent workflow. Freebuff is the only option where the software and the model costs are both covered, which is why it tops this list. OpenCode earns its place for developers who want open source and already pay for tokens. Claude Code and Cursor remain the paid incumbents, and the comparison above prices what you would save by testing a free baseline first.
Test it on work you would otherwise spend credits on. Install the CLI, run it in a real project this week, and see whether the paid subscription earns its renewal. If you want the fuller argument, Cancel your cloud coding agent subscription makes the case in depth.