Source: https://seerepo.com/compare/anomalyco/opencode/vs/CodebuffAI/freebuff
Markdown source: https://seerepo.com/compare/anomalyco/opencode/vs/CodebuffAI/freebuff.md
Description: opencode and freebuff share 9 technologies: MCP, React, OpenTUI, ai-sdk, gray-matter, Zod, @ai-sdk/provider, remark-gfm, and yaml. Both are written in TypeScript.

# opencode vs freebuff

opencode and freebuff share 9 technologies: MCP, React, OpenTUI, ai-sdk, gray-matter, Zod, @ai-sdk/provider, remark-gfm, and yaml. Both are written in TypeScript.

- [anomalyco/opencode](https://seerepo.com/r/anomalyco/opencode): The open source coding agent.
- [CodebuffAI/freebuff](https://seerepo.com/r/CodebuffAI/freebuff): The free coding agent

## What they share and what sets them apart

- In common: MCP, React, OpenTUI, ai-sdk, gray-matter, Zod, @ai-sdk/provider, remark-gfm, yaml
- Only in opencode: Solid, solidjs, Vite, @solid-primitives/storage, Sentry, effect, Anthropic, @solidjs/router, Electron, Hono, GitHub, PlanetScale, @solidjs/meta, @astrojs/starlight, Astro, nitro, @clack/prompts, @aws-sdk/credential-providers, Tailwind CSS, @tailwindcss/vite, solid-primitives, @kobalte/core, dnd-kit, @tanstack/solid-virtual, @corvu/drawer, qr-scanner, clack, @agentclientprotocol/sdk, Drizzle, jose, gitlab-ai-provider, @silvia-odwyer/photon-node, htmlparser2, @standard-schema/spec, electron-context-menu, electron-log, SST, @betteroffice/fonts, ghostty-web, TanStack, betteroffice, entities, commonmark-spec, micromark, commonmark, micromark-extension-gfm, @kitlangton/solid-motion, @pierre/highlights, pele, dompurify, D3, @resvg/resvg-wasm, satori, solid-sonner, marked, katex, jsqr, @effect/opentelemetry, opentelemetry, toolbeam-docs-theme, @solid-primitives/resize-observer, shiki, marked-shiki, Plex, three, number-flow, mdast-util-mdx-jsx, unist-util-visit, vfile, estree-util-visit, hast-util-to-text, remark-smartypants, sharp, uqr, Cloudflare
- Only in freebuff: PostHog, ai, jimp, remark-breaks, remark-parse, unified, pino, @xterm/headless, zod-from-json-schema

## Side by side

| | opencode | freebuff |
|---|---|---|
| Size | 1,304,068 lines written, 4,550 code files | 462,259 lines written, 1,304 code files |
| Who writes it | 0.3% of its commits signed by AI. With Claude Code, GitHub Copilot, Cursor, and Jules | 0.5% of its commits signed by AI. With Claude Code, Devin, Codex, Gemini CLI, and Aider |
| Activity | Last push November 8, 2026, 22,280 commits, 225,527 stars | Last push November 9, 2026, 13,222 commits, 14,058 stars |
| Tests | 2,002 test files. 38.6% of its code files have a test that imports them | 869 test files. 58.3% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, opencode or freebuff?

opencode, with 1,304,068 lines written; freebuff has 462,259.

The proof: [anomalyco/opencode's code at commit 7d5b722](https://github.com/anomalyco/opencode/tree/7d5b72250890e0e89573b4cab42a003a48c20567)

### Which has more GitHub stars, opencode or freebuff?

opencode, with 225,527 stars; freebuff has 14,058.

The proof: [anomalyco/opencode on GitHub](https://github.com/anomalyco/opencode)

### Which has more tests, opencode or freebuff?

opencode, with 2,002 test files; freebuff has 869.

The proof: [anomalyco/opencode's code at commit 7d5b722](https://github.com/anomalyco/opencode/tree/7d5b72250890e0e89573b4cab42a003a48c20567)

### Which was updated more recently, opencode or freebuff?

freebuff: its last push was on November 9, 2026, and opencode's on November 8, 2026.

The proof: [CodebuffAI/freebuff's commits on GitHub](https://github.com/CodebuffAI/freebuff/commits)

### Which has more commits signed by AI, opencode or freebuff?

freebuff: an AI signed 0.5% of its commits, with Claude Code, Devin, Codex, Gemini CLI, and Aider; in opencode, 0.3%.

The proof: [the commits each tool signed in CodebuffAI/freebuff](https://seerepo.com/r/CodebuffAI/freebuff/ai)

## Sources

- anomalyco/opencode: Read on November 8, 2026, at commit 7d5b722 (https://github.com/anomalyco/opencode/tree/7d5b72250890e0e89573b4cab42a003a48c20567)
- CodebuffAI/freebuff: Read on November 9, 2026, at commit 0ef41e8 (https://github.com/CodebuffAI/freebuff/tree/0ef41e812eff0f5630510070e5812658c0be9fbc)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.