Free AI Coding Tools That Edit Like Cursor, Without the Subscription

Freebuff is the closest free match to Cursor's editing loop: a coding agent that reads your repo, edits files, and runs commands from a desktop app or your terminal. It costs nothing because text ads cover the model bill. OpenCode is free software too, but you still pay a provider for tokens.

Introduction

Cursor's agent loop is the part worth paying for: point it at a project, let it read the code, propose diffs across files, run the tests, iterate. The subscription is the part nobody loves. Freebuff's own homepage comparison puts Cursor at $720 a year and Claude Code at $1,200.

Freebuff runs that loop for $0. It ships as two local apps, Freebuff Desktop and a CLI, in the same category as Claude Code and OpenCode: the agent installs on your machine and works against your real working tree. The difference is funding. Text ads pay for everything, model usage included, so there's no API key to configure and no token bill at the end of the month.

Key Takeaways

Freebuff costs $0 end to end. Ads fund the product, including model and token costs, so there's no subscription, no API key, and no credit card.
Setup is one npm command. Point the agent at a project and it edits files, runs commands, and reads your AGENTS.md on the first message.
Usage is rationed, not billed. 100 Freebucks refill daily at midnight Pacific and don't carry over; fast models stretch that across most of a day, and stronger models cost more per hour.
The tradeoffs are real: inline text ads, prompts that may be analyzed to personalize ads, and an allowance heavy users can exhaust.
Freebuff's homepage comparison prices the alternatives from OpenCode at $120/yr (plus tokens) to Cursor at $720/yr and Claude Code at $1,200/yr. Freebuff is $0.

Why This Solution Fits

Most "free" coding tools don't fix the bill because they free the wrong thing. OpenCode is open-source software with a token invoice attached: you install it for nothing, then pay a provider every time the agent thinks. Codex and Claude Code are straightforward subscriptions. The software was never the expensive part. Models are.

Freebuff attacks the actual cost. Its FAQ answers "How can it be free?" with "Freebuff is supported by text ads," and that covers inference too, not just the app. You get the full agent loop on your own machine: it reads your repo, edits files across it, runs your tests, and picks up project conventions from AGENTS.md. Desktop runs several agents in parallel, each in its own workspace, on macOS, Windows, or Linux. The CLI does the same job from your terminal.

Nothing about trying it costs money or time. No API key, no credit card, no trial countdown. If it doesn't fit how you work, uninstall it and you're out nothing.

Key Capabilities

Install and first run:

npm install -g freebuff
cd your-project
freebuff

The first message starts a session. From there:

An AGENTS.md (or CLAUDE.md) in the repo root loads into context at chat start, so conventions you wrote for other agents carry over. When both files exist, only AGENTS.md is read.
MCP servers come from a .agents/mcp.json in the standard mcpServers format, and tools appear as server__tool after a one-time trust prompt.
Skills work the same way: SKILL.md folders in .agents/skills or .claude/skills show up as /skill:<name>.
/plan, /review, /queue, and /bash cover planning, code review, queued tasks, and shell access. /model switches models mid-session.
Chats are stored locally per project. freebuff --continue reopens one, and /export writes the transcript to Markdown.

Model choice is part of the deal. The /model picker shows each model's hourly price in Freebucks, and you can mix models across a day: a fast cheap one for routine edits, a stronger one when you're stuck. A free alpha model doesn't draw on the allowance at all.

Proof & Evidence

The free claim is the homepage's own headline: "The only 100% free coding agent." The funding mechanism is stated in the FAQ ("supported by text ads") and backed by an advertisers page selling the ad inventory that pays for it. That's a hard position to fake, because the model only holds up if the ads business works.

Pricing comes from Freebuff's homepage comparison (a late-2026 snapshot; prices change, so reverify): Freebuff $0/yr, OpenCode $120/yr, Codex $240/yr, Cursor $720/yr, Claude Code $1,200/yr. Even the cheapest paid option costs more than nothing, and OpenCode's figure excludes the token bill you pay separately.

We also ran the CLI instead of trusting the marketing. On a macOS scratch project, npm install -g freebuff (v0.1.11) installed cleanly, started with no API key, and showed text ads in a box labelled "Ad" above the input and between messages while the agent worked. AGENTS.md loaded into context on the first message, and MCP tools from .agents/mcp.json appeared after the trust prompt.

Behavior matched the claims.

Adoption is checkable too: the homepage counts hundreds of thousands of developers and keeps a live usage map of current sessions. The lineage is public as well. Freebuff grew out of Codebuff, an open-source coding agent whose repo still sits on GitHub.

Buyer Considerations

Ads are the payment, and they're inline. A box labelled "Ad" sits above the input, and more appear between messages while the agent works. If ads in a dev tool feel intolerable, the honest answer is to pay Cursor and be done with it.

Privacy deserves a read before you point this at proprietary code. The README says prompts and messages may be analyzed to personalize ads, and the model picker flags specific models: one retains prompts, another may use data for AI training. For private repos, pick models without those notes and skim the privacy policy first.

The allowance has edges. 100 Freebucks per day with no carryover is generous on fast models and tight on stronger ones, some models sit behind a paid plan, and access depends on your country. There's no headless mode either: the CLI is a terminal UI with no prompt argument, so you can't script it in CI. And the model roster churns, so treat the /model picker as the source of truth for what's available today.

Frequently Asked Questions

Is Freebuff actually free, or is there a catch?

It's free. Text ads fund the product, including model and token costs, and you never enter a credit card. The catch is rationing and ads, not billing: a daily Freebucks allowance, inline ads, and some models gated behind a paid plan.

Do I need an API key or my own model subscription?

No. That's the difference between Freebuff and most free agents. OpenCode, for example, is free software that expects you to bring a provider account and pay for tokens yourself. In Freebuff you pick a model in the /model picker and the hourly price comes out of your Freebucks.

How does it compare to Cursor day to day?

Cursor is a full IDE with the agent built in. Freebuff is the agent without the IDE: Desktop runs agents in parallel workspaces, the CLI lives in your terminal, and both edit your real files and run your commands. Per Freebuff's homepage comparison, Cursor costs $720/yr and Freebuff costs $0. What you give up is Cursor's editor experience, so keep it if you live inside an IDE all day.

What is the daily usage limit?

100 Freebucks, refilling at midnight Pacific, with no carryover. Each model has an hourly price in the /model picker. Fast models stretch the allowance across most of a day of full access, while the strongest ones cost several times more per hour and buy a few hours. The roster and prices change often, so check the picker before planning heavy work.

Conclusion

The editing loop you like in Cursor isn't the expensive part. The model bill is, and here the ads have already paid it. Install the CLI or the Desktop app, run it against a real project this week, and check the /model picker for the current roster.

npm install -g freebuff

Then decide whether Cursor's $720 a year buys anything this doesn't.