head to head · open source
harvey vs Atomic CRM
harvey has 4,053 GitHub stars, 844 forks, 12 open issues and last shipped yesterday. Atomic CRM has 1,421 stars, 911 forks, 19 open issues and last shipped yesterday. harvey leads on adoption by 185% (4,053 vs 1,421 stars). harvey is written in Python under MIT; Atomic CRM is written in TypeScript under MIT. harvey has attracted 21% as many forks as stars, Atomic CRM 64%. Atomic CRM was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| harvey | Atomic CRM | |
|---|---|---|
| GitHub stars | ★ 4.1K | ★ 1.4K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 844 | ⑂ 911 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick harvey if
- You weight community size — 4.1K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Atomic CRM if
- You want the Atomic CRM feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Atomic CRM fits your workflow better
About harvey
Harvey An autonomous sales agent that runs on your Claude Code or Codex subscription. Harvey finds businesses worth selling to, learns something specific about each one, writes cold email that references it, sends it, reads the replies, and works the conversation toward a meeting. It runs on your machine, in a loop, on its own. The unusual part: there is no model API bill. Harvey uses your Claude Pro or Max subscription through Claude Code, or your ChatGPT subscription through Codex. Model calls use the plan you already pay for, without an API key or per token API billing. Claude is the default; Codex is an opt…
read the full harvey overview →
About Atomic CRM
Atomic CRM A full featured CRM built with React, shadcn admin kit, and Supabase. Atomic CRM is free and open source. You can test it online at . Features 📇 Organize Contacts : Keep all your contacts in one easily accessible place. ⏰ Create Tasks & Set Reminders : Never miss a follow up or deadline. 📝 Take Notes : Capture important details and insights effortlessly. ✉️ Capture Emails : CC Atomic CRM to automatically save communications as notes. 📊 Manage Deals : Visualize and track your sales pipeline in a Kanban board. 🔄 Import & Export Data : Easily transfer contacts in and out of the system. 🔐 Control…
read the full Atomic CRM overview →
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Frequently asked questions
Is harvey or Atomic CRM more popular?
harvey has 4,053 GitHub stars and Atomic CRM has 1,421. harvey has the larger community by that measure.
Are harvey and Atomic CRM free?
Both are open source. harvey is licensed under MIT and Atomic CRM under MIT. Neither carries a licence fee.
What is the difference between harvey and Atomic CRM?
harvey is written in Python and Atomic CRM in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, harvey or Atomic CRM?
Choose harvey if you want the larger community (4,053 stars) or its MIT licence terms. Choose Atomic CRM if its feature set, stack or MIT licence fits better. Both are self-hostable.