head to head · open source
cobalt vs mirotalk
cobalt has 43,316 GitHub stars, 3,798 forks, 269 open issues and last shipped 6 months ago. mirotalk has 4,739 stars, 773 forks, 0 open issues and last shipped 2 days ago. cobalt leads on adoption by 814% (43,316 vs 4,739 stars). cobalt is written in Svelte under AGPL-3.0; mirotalk is written in JavaScript under AGPL-3.0. cobalt has attracted 9% as many forks as stars, mirotalk 16%. mirotalk was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (collaboration, javascript), 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
| cobalt | mirotalk | |
|---|---|---|
| GitHub stars | ★ 43K | ★ 4.7K |
| License | AGPL-3.0 | AGPL-3.0 |
| Written in | Svelte | JavaScript |
| Last push | 2026-04-06 | 2026-09-16 |
| Forks | ⑂ 3.8K | ⑂ 773 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick cobalt if
- You weight community size — 43K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Svelte
- You value the larger contributor base for long-term maintenance
pick mirotalk if
- You want the mirotalk feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and mirotalk fits your workflow better
About cobalt
cobalt is a media downloader built around a single promise: paste a link, get the file, move on. It is a monorepo containing the source for an API, a web frontend, and related packages, written primarily in Svelte and TypeScript. The project lives in the modern web and JavaScript ecosystem, and its public surface is hosted at cobalt.tools, while the full codebase is published under the AGPL 3.0 license.
read the full cobalt overview →
About mirotalk
MiroTalk P2P is a free, open source, self hosted video conferencing platform that connects participants through direct peer to peer WebRTC links, aimed at teams and organisations that want browser based meeting rooms running on their own infrastructure.
read the full mirotalk overview →
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Frequently asked questions
Is cobalt or mirotalk more popular?
cobalt has 43,316 GitHub stars and mirotalk has 4,739. cobalt has the larger community by that measure.
Are cobalt and mirotalk free?
Both are open source. cobalt is licensed under AGPL-3.0 and mirotalk under AGPL-3.0. Neither carries a licence fee.
What is the difference between cobalt and mirotalk?
cobalt is written in Svelte and mirotalk in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, cobalt or mirotalk?
Choose cobalt if you want the larger community (43,316 stars) or its AGPL-3.0 licence terms. Choose mirotalk if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.