head to head · open source
EspoCRM vs Atomic CRM
EspoCRM has 3,541 GitHub stars, 1,017 forks, 69 open issues and last shipped yesterday. Atomic CRM has 1,421 stars, 911 forks, 19 open issues and last shipped yesterday. EspoCRM leads on adoption by 149% (3,541 vs 1,421 stars). EspoCRM is written in PHP under AGPL-3.0; Atomic CRM is written in TypeScript under MIT. EspoCRM has attracted 29% 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. The two share 1 topic tag (crm), 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
| EspoCRM | Atomic CRM | |
|---|---|---|
| GitHub stars | ★ 3.5K | ★ 1.4K |
| License | AGPL-3.0 | MIT |
| Written in | PHP | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.0K | ⑂ 911 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick EspoCRM if
- You weight community size — 3.5K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches PHP
- 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 EspoCRM
EspoCRM EspoCRM is a free, open source CRM platform designed to help organizations build and maintain strong customer relationships. It provides a wide range of tools to store, organize, and manage leads, contacts, sales opportunities, marketing campaigns, support cases, and more – all business information in a simple and intuitive interface. Architecture EspoCRM is a web application with a frontend designed as a single page application and a REST API backend written in PHP. Demo You can try the CRM on an online demo. Requirements PHP 8.3 8.5; MySQL 8.0 (and later), or MariaDB 10.3 (and later); PostgreSQL 15…
read the full EspoCRM 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 EspoCRM or Atomic CRM more popular?
EspoCRM has 3,541 GitHub stars and Atomic CRM has 1,421. EspoCRM has the larger community by that measure.
Are EspoCRM and Atomic CRM free?
Both are open source. EspoCRM is licensed under AGPL-3.0 and Atomic CRM under MIT. Neither carries a licence fee.
What is the difference between EspoCRM and Atomic CRM?
EspoCRM is written in PHP 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, EspoCRM or Atomic CRM?
Choose EspoCRM if you want the larger community (3,541 stars) or its AGPL-3.0 licence terms. Choose Atomic CRM if its feature set, stack or MIT licence fits better. Both are self-hostable.