head to head · open source
Fider vs ClearFlask
Fider has 4,530 GitHub stars, 852 forks, 57 open issues and last shipped yesterday. ClearFlask has 451 stars, 45 forks, 0 open issues and last shipped 7 days ago. Fider leads on adoption by 904% (4,530 vs 451 stars). Fider is written in Go under AGPL-3.0; ClearFlask is written in Java under Apache-2.0. Fider has attracted 19% as many forks as stars, ClearFlask 10%. Fider was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (feedback), 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.
← all 8884 open source comparisons
Side by side
| Fider | ClearFlask | |
|---|---|---|
| GitHub stars | ★ 4.5K | ★ 451 |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Go | Java |
| Last push | 2026-09-17 | 2026-09-11 |
| Forks | ⑂ 852 | ⑂ 45 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Fider if
- You weight community size — 4.5K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick ClearFlask if
- You want the ClearFlask feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and ClearFlask fits your workflow better
About Fider
Fider is an open source, self hostable feedback portal, written in Go under the AGPL 3.0 licence, that lets a product team collect feature requests and suggestions from its customers and hear directly what they need.
read the full Fider overview →
About ClearFlask
ClearFlask is an open source, Apache 2.0 licensed feedback management and ideation tool for product teams that want to collect user requests, run voting, and publish a roadmap on infrastructure they control.
read the full ClearFlask overview →
More in Community & Social
Related comparisons
More Collaboration & Feedback projects
Compare either of these against the rest of the Collaboration & Feedback field.
Frequently asked questions
Is Fider or ClearFlask more popular?
Fider has 4,530 GitHub stars and ClearFlask has 451. Fider has the larger community by that measure.
Are Fider and ClearFlask free?
Both are open source. Fider is licensed under AGPL-3.0 and ClearFlask under Apache-2.0. Neither carries a licence fee.
What is the difference between Fider and ClearFlask?
Fider is written in Go and ClearFlask in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Fider or ClearFlask?
Choose Fider if you want the larger community (4,530 stars) or its AGPL-3.0 licence terms. Choose ClearFlask if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.