head to head · open source
sellbird vs nextcrm-app
sellbird has 4,775 GitHub stars, 1,013 forks, 30 open issues and last shipped yesterday. nextcrm-app has 739 stars, 288 forks, 29 open issues and last shipped yesterday. sellbird leads on adoption by 546% (4,775 vs 739 stars). sellbird is written in Python under AGPL-3.0; nextcrm-app is written in TypeScript under MIT. sellbird has attracted 21% as many forks as stars, nextcrm-app 39%. sellbird 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
| sellbird | nextcrm-app | |
|---|---|---|
| GitHub stars | ★ 4.8K | ★ 739 |
| License | AGPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-07 | 2026-11-07 |
| Forks | ⑂ 1.0K | ⑂ 288 |
| 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 nextcrm-app if
- You want the nextcrm-app feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and nextcrm-app 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 nextcrm-app
NextCRM NextCRM is an open source CRM built with Next.js 16, React 19, TypeScript, PostgreSQL (Prisma 7), and shadcn/ui. Features CRM, project management, invoicing, document storage, email client, AI powered features, vector search, and MCP server for AI agent access. Introduction · What's New · Tech Stack + Features · Roadmap · Installation · Repo activity · License · Discord Online Demo You can try it here demo.nextcrm.io, login via Google account or create new user and password. What's New 🧾 Invoices Module — Full Invoicing Workflow (NEW) Complete invoicing system built into NextCRM — create, issue, pay…
read the full nextcrm-app overview →
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Frequently asked questions
Is sellbird or nextcrm-app more popular?
sellbird has 4,775 GitHub stars and nextcrm-app has 739. sellbird has the larger community by that measure.
Are sellbird and nextcrm-app free?
Both are open source. sellbird is licensed under AGPL-3.0 and nextcrm-app under MIT. Neither carries a licence fee.
What is the difference between sellbird and nextcrm-app?
sellbird is written in Python and nextcrm-app 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, sellbird or nextcrm-app?
Choose sellbird if you want the larger community (4,775 stars) or its AGPL-3.0 licence terms. Choose nextcrm-app if its feature set, stack or MIT licence fits better. Both are self-hostable.