head to head · open source
sellbird vs Relaticle
sellbird has 4,775 GitHub stars, 1,013 forks, 30 open issues and last shipped yesterday. Relaticle has 1,815 stars, 232 forks, 28 open issues and last shipped yesterday. sellbird leads on adoption by 163% (4,775 vs 1,815 stars). sellbird is written in Python under AGPL-3.0; Relaticle is written in PHP under AGPL-3.0. sellbird has attracted 21% as many forks as stars, Relaticle 13%. Relaticle was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (claude), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| sellbird | Relaticle | |
|---|---|---|
| GitHub stars | ★ 4.8K | ★ 1.8K |
| License | AGPL-3.0 | AGPL-3.0 |
| Written in | Python | PHP |
| Last push | 2026-11-07 | 2026-11-07 |
| Forks | ⑂ 1.0K | ⑂ 232 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick sellbird if
- You weight community size — 4.8K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Relaticle if
- You want the Relaticle feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches PHP
- You evaluated both and Relaticle fits your workflow better
About sellbird
The open source outreach platform that runs on your Claude or ChatGPT plan. Sellbird finds companies that need what you sell, finds the person who decides, checks their email address, writes each one a personal cold email, sends it and handles the replies. It runs on your own machine, and by default nothing goes out until you approve it. Harvey is now Sellbird. Same project, same history, new name. Already running Harvey? Your setup carries over: see Upgrading from Harvey. Prefer not to run it yourself? sellbird.ai is the hosted version, with sending domains, inboxes and warmup set up for you. It's in early…
read the full sellbird overview →
About Relaticle
The Open Source CRM Built for People and AI Powered Work Website · Documentation · MCP Server · Roadmap · Discussions Clean, modern interface built with Filament 5 and Livewire 4 About Relaticle Relaticle is a self hosted CRM with a production grade MCP server. Connect any AI agent Claude, GPT, or open source models with 37 tools for CRM operations and analysis. 22 custom field types, REST API, and multi team isolation. Perfect for: Developer led teams, AI forward startups, and SMBs who want AI agent integration without vendor lock in. Core Strengths: Agent Native Infrastructure MCP server with 37 tools, REST…
read the full Relaticle overview →
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Frequently asked questions
Is sellbird or Relaticle more popular?
sellbird has 4,775 GitHub stars and Relaticle has 1,815. sellbird has the larger community by that measure.
Are sellbird and Relaticle free?
Both are open source. sellbird is licensed under AGPL-3.0 and Relaticle under AGPL-3.0. Neither carries a licence fee.
What is the difference between sellbird and Relaticle?
sellbird is written in Python and Relaticle in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, sellbird or Relaticle?
Choose sellbird if you want the larger community (4,775 stars) or its AGPL-3.0 licence terms. Choose Relaticle if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.