head to head · open source
Fider vs ClearFlask
Fider has 4,597 GitHub stars, 875 forks, 57 open issues and last shipped yesterday. ClearFlask has 450 stars, 45 forks, 0 open issues and last shipped 3 days ago. Fider leads on adoption by 922% (4,597 vs 450 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.
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Side by side
| Fider | ClearFlask | |
|---|---|---|
| GitHub stars | ★ 4.6K | ★ 450 |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Go | Java |
| Last push | 2026-11-02 | 2026-10-31 |
| Forks | ⑂ 875 | ⑂ 45 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Fider if
- You weight community size — 4.6K 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.io • Fider Feedback • Fider Demo • Docs • Contributing Fider is a feedback portal for feature requests and suggestions. Give your customers a voice and let them tell you what they need. Spend less time guessing and more time building the right product. Getting Started ☁️ Fider Cloud The easiest and quickest way to get started. A fully managed services by the creators of Fider to help you get started in minutes. Forget about managing software updates and patches, we do it all for you! Sign up now 🏢 Self Hosted Install Fider on your own servers, in your own infrastructure. It's totally free, but of course…
read the full Fider overview →
About ClearFlask
Open source Feedback Management Tool. Alternative to Canny and UserVoice . Contents Managed hosting Self hosting One click deploy Quick start Kubernetes deployment Deploy dependencies Via Docker Via Kubernetes Via AWS Deploy ClearFlask Setup Run Maintenance Migration between Elasticsearch/MySQL Contributing Code quality Building Architecture Release Security Policy Managed Hosting Support our open source development by choosing cloud hosting with scalable pricing, check us out on our website. Self Hosting One click deploy Deploy a self contained instance (API server, SSR frontend, MariaDB) in a few clicks — no…
read the full ClearFlask overview →
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Frequently asked questions
Is Fider or ClearFlask more popular?
Fider has 4,597 GitHub stars and ClearFlask has 450. 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 (4,597 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.