Best free coding agent in 2026, ranked and compared

What actually counts as free here#

Every tool below is checked against three questions. Does the core agent run without paying anyone, forever, under a real open-source license, not a trial? Is it still receiving commits, or has it quietly stopped? And when a vendor's own pricing page says free, what does that word actually gate, the extension, a model, or a cloud service bolted on top? This list is for readers looking for an alternative to a paid default like Claude Code, not a companion to one.

A tool fails the first test if free is time-boxed marketing copy for a model that disappears next quarter. It fails the second if GitHub shows no commits in months while its peers pushed the same day this ran. It fails the third if the free tier turns out to be a funnel toward a subscription the landing page never mentions above the fold.

OpenCode#

OpenCode is the terminal-first agent with the largest GitHub following in this list by a wide margin, 201,663 stars, with a commit pushed the same day this ran. It is model-agnostic, so point it at Claude, GPT, Gemini, or a local model, and its MIT license means nothing about running it is gated.

The catch sits in the marketing, not the code. OpenCode Zen's headline free models, Big Pickle, MiMo-V2.5 Free, Hy3 Free, carry the vendor's own label, quoted directly from its docs, as 'a stealth model that's free on OpenCode for a limited time.' The Nemotron models are flagged 'trial use only.' None of that touches the open-source agent itself, which stays free under BYOK regardless of what Zen is doing this month. But a reader who picked OpenCode specifically for its free models should know they are renting, not owning.

• Best for terminal-first workflows, anyone who wants one agent across every model provider
• Skip it if you picked it specifically for Zen's free models and expect them to still be there in six months

Cline#

Cline is the cleanest free claim on this list, and it says so on its own pricing page in exactly these words. 'Cline is free for individual developers. Pay only for AI inference on a usage basis, no subscriptions, no vendor lock-in.' The open-source VS Code extension, at 66,899 stars and a same-day push, includes MCP Marketplace access and multi-root workspaces with no seat fee attached.

The only cost is whatever the model provider charges for tokens, same as every BYOK tool here. Cline just states it plainly instead of burying it under a 'get started free' button that leads to a card form.

• Best for developers who want an IDE-native agent with the fewest surprises in the pricing model
• Skip it if you specifically want a terminal-only workflow with no VS Code dependency

OpenHands#

OpenHands is the self-hosted option built for longer, more autonomous runs rather than inline IDE suggestions. It carries 85,182 stars, an MIT license, and a push the same day this ran. It is genuinely free to run. The README's own framing is 'bring your own model,' meaning the only recurring cost is whichever LLM API key you point it at, same as everything else here.

What OpenHands does not give you is a lightweight setup. It is built to run tasks end to end, not to sit quietly in a sidebar, and that shape is the whole reason to reach for it over an IDE extension.

• Best for self-hosted, longer-running autonomous tasks rather than inline suggestions
• Skip it if you want something that installs in thirty seconds and lives in your editor

Continue#

Continue is an IDE-native BYOK agent at 35,643 stars, Apache-2.0, with a same-day push. Its own pricing page returned a dead link during this research, a small but real signal about how actively that particular page gets maintained even while the extension itself keeps shipping.

• Best for developers who want an IDE-native BYOK agent under an Apache license
• Skip it if you want a single vendor-maintained pricing page to point a manager at

Kilo Code#

Kilo Code's core extension is MIT-licensed, at 27,030 stars, pushed the same day this ran, and free forever under BYOK. That part is not in dispute. What changes the calculation is everything built around the free core. Teams pricing runs $15 per user per month for centralized billing, and KiloClaw, Kilo's hosted cloud agent, costs $55 a month at the Standard tier.

Neither of those costs touches the free extension if you never click into the cloud product. The risk is entirely about which page a reader lands on first, the GitHub repo describing a free MIT tool, or the marketing site describing a Standard tier.

• Best for teams that want the option to graduate into a paid cloud tier without switching tools
• Skip it if you want zero cloud upsell anywhere in the product, ever

Goose#

Goose, Block's local-first agent, is Apache-2.0, sits at 53,526 stars, and pushed the same day this ran, genuinely active and genuinely free, BYOK like the rest of the open-source field.

• Best for developers who want a local-first, actively maintained BYOK agent from an established engineering org
• Skip it if you'd rather not depend on a corporate-backed project's roadmap for a core dev tool

Aider#

Aider is one of the earliest git-native terminal agents, Apache-2.0, still sitting at 48,509 stars. It is the only tool on this list where GitHub's own API shows a real gap. The last push was three months before this research ran, while every other active candidate here pushed the same day. That is not a benchmark or a race, it is one authorized API read per repo, and the numbers are what they are.

A three-month gap is not abandonment on its own. Plenty of mature tools slow their release cadence once the core is stable. But it is the one data point in this list that a reader picking Aider today should weigh against the alternatives above, all of which are shipping right now.

• Best for git-native terminal workflows, if the maintenance pace doesn't matter to your use case
• Skip it if active development cadence is part of your decision

What to skip#

Roo Code shows up in nearly every comparison of this field, and GitHub's own API answers the question before any pricing page does. The repository is archived, so it is not an appropriate new install for anyone who needs actively maintained software. Whatever the 24,324 stars and 3,415 forks represent, they represent history, not ongoing development, and it does not appear in the table above for exactly that reason.

The verdict#

If the whole decision comes down to one sentence, pick Cline if you want the plainest free claim in an IDE, OpenCode if you want one terminal agent across every model provider and don't mind a free-model rotation on top, and OpenHands if the job is longer autonomous runs rather than inline suggestions. Kilo Code earns a look specifically for teams who might want a paid cloud tier later without a tool switch. Continue and Goose both belong on the shortlist too, as actively maintained, fully BYOK alternatives with no cloud upsell anywhere in the product.

Aider still works, and 48,509 stars did not happen by accident. Just go in knowing the release cadence has slowed. Roo Code does not belong on anyone's 2026 shortlist. The archive flag is the whole argument. None of these require a subscription to start, which is the one thing every vendor page agrees on, even when they disagree about what happens after page one.