head to head · open source
univer vs chitchatter
univer has 22,875 GitHub stars, 1,920 forks, 151 open issues and last shipped 2 days ago. chitchatter has 2,344 stars, 451 forks, 53 open issues and last shipped 2 days ago. univer leads on adoption by 876% (22,875 vs 2,344 stars). univer is written in TypeScript under Apache-2.0; chitchatter is written in TypeScript under GPL-2.0. univer has attracted 8% as many forks as stars, chitchatter 19%. univer 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
| univer | chitchatter | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 2.3K |
| License | Apache-2.0 | GPL-2.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-03 | 2026-11-03 |
| Forks | ⑂ 1.9K | ⑂ 451 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick univer if
- You weight community size — 23K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick chitchatter if
- You want the chitchatter feature set and don't need the biggest community
- You prefer the GPL-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and chitchatter fits your workflow better
About univer
A full stack, isomorphic office SDK for building spreadsheets, documents, and presentations. Build embeddable productivity experiences with a plugin architecture, Canvas based rendering, a formula engine, and one Facade API that works in the browser and on Node.js. English 简体中文 繁體中文 日本語 한국어 Español 📖 Documentation ✨ Showcase 📘 API Reference 📝 Blog ✨ What is Univer? Univer is an open source SDK for creating office applications inside your own product. It gives you the building blocks for spreadsheet, document, and presentation experiences without forcing you into a hosted app or a fixed UI. Use Univer when you…
read the full univer overview →
About chitchatter
Chitchatter Logo provided by @ramyashreeshetty Chitchatter is a free (as in both price and freedom) communication tool. Designed to be the simplest way to connect with others privately and securely, it is: Fully open source (licensed under GPL v2) Peer to peer Whenever possible, otherwise a TURN server is used to ensure reliable peer connection End to end encrypted (via WebRTC) Ephemeral Message content is never persisted to disk on either the client or server Decentralized No API server required . Chitchatter works completely without an API server all that's required for basic functionality is availability of…
read the full chitchatter overview →
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Frequently asked questions
Is univer or chitchatter more popular?
univer has 22,875 GitHub stars and chitchatter has 2,344. univer has the larger community by that measure.
Are univer and chitchatter free?
Both are open source. univer is licensed under Apache-2.0 and chitchatter under GPL-2.0. Neither carries a licence fee.
What is the difference between univer and chitchatter?
univer is written in TypeScript and chitchatter 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, univer or chitchatter?
Choose univer if you want the larger community (22,875 stars) or its Apache-2.0 licence terms. Choose chitchatter if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.