head to head · open source
seaweedfs vs arc
seaweedfs has 34,819 GitHub stars, 3,002 forks, 772 open issues and last shipped yesterday. arc has 676 stars, 52 forks, 57 open issues and last shipped 2 days ago. seaweedfs leads on adoption by 5,051% (34,819 vs 676 stars). seaweedfs is written in Go under Apache-2.0; arc is written in Go under AGPL-3.0. seaweedfs has attracted 9% as many forks as stars, arc 8%. seaweedfs 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
| seaweedfs | arc | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 676 |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Go | Go |
| Last push | 2026-09-18 | 2026-09-17 |
| Forks | ⑂ 3.0K | ⑂ 52 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick seaweedfs if
- You weight community size — 35K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick arc if
- You want the arc feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Go
- You evaluated both and arc fits your workflow better
About seaweedfs
SeaweedFS is an Apache 2.0 distributed storage system written in Go that serves an S3 compatible object store, a POSIX file system, and Iceberg lakehouse tables from one weed binary, built for storing and serving billions of files with O(1) disk access.
read the full seaweedfs overview →
About arc
Arc is an open, SQL native time series database, released under AGPL 3.0, for engineers and platform teams who need to keep full resolution telemetry from machines, services, vehicles, and devices and still query recent and historical data together in one system.
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Frequently asked questions
Is seaweedfs or arc more popular?
seaweedfs has 34,819 GitHub stars and arc has 676. seaweedfs has the larger community by that measure.
Are seaweedfs and arc free?
Both are open source. seaweedfs is licensed under Apache-2.0 and arc under AGPL-3.0. Neither carries a licence fee.
What is the difference between seaweedfs and arc?
seaweedfs is written in Go and arc in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, seaweedfs or arc?
Choose seaweedfs if you want the larger community (34,819 stars) or its Apache-2.0 licence terms. Choose arc if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.