head to head · open source
Twenty vs Mike
Twenty has 60,319 GitHub stars, 9,915 forks, 205 open issues and last shipped yesterday. Mike has 4,413 stars, 1,372 forks, 68 open issues and last shipped 2 days ago. Twenty leads on adoption by 1,267% (60,319 vs 4,413 stars). Twenty is written in TypeScript under a custom or non-standard licence; Mike is written in TypeScript under AGPL-3.0. Twenty has attracted 16% as many forks as stars, Mike 31%. Twenty 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
| Twenty | Mike | |
|---|---|---|
| GitHub stars | ★ 60K | ★ 4.4K |
| License | Custom / other | AGPL-3.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 9.9K | ⑂ 1.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Twenty if
- You weight community size — 60K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Mike if
- You want the Mike feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Mike fits your workflow better
About Twenty
The 1 Open Source CRM Website · Documentation · Roadmap · Discord · Figma Why Twenty Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack. Learn more about why we built Twenty Installation Cloud The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date. Build an app Scaffold a new app with the Twenty CLI: Define objects, fields, and views as code: Then ship…
read the full Twenty overview →
About Mike
Mike Mike (MikeOSS) is an open source legal AI platform for document review, drafting, and legal research. It combines a Next.js frontend, an Express backend, Supabase Auth/Postgres, and Cloudflare R2 compatible object storage. Website: mikeoss.com Features Chat with legal documents and open matters Review documents and apply suggested edits Run reusable assistant and tabular review workflows Organize projects, folders, and a document library Verify citations and research US case law with CourtListener Work from Microsoft Word with the beta task pane add in Run supported language models locally through Ollama…
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Frequently asked questions
Is Twenty or Mike more popular?
Twenty has 60,319 GitHub stars and Mike has 4,413. Twenty has the larger community by that measure.
Are Twenty and Mike free?
Both are open source. Twenty has no licence declared in this registry, and Mike is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Twenty and Mike?
Twenty is written in TypeScript and Mike 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, Twenty or Mike?
Choose Twenty if you want the larger community (60,319 stars) or its Custom / other licence terms. Choose Mike if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.