head to head · open source
hydra vs keepass2android
hydra has 17,646 GitHub stars, 1,619 forks, 98 open issues and last shipped 3 months ago. keepass2android has 6,366 stars, 484 forks, 1,174 open issues and last shipped 7 days ago. hydra leads on adoption by 177% (17,646 vs 6,366 stars). hydra is written in Go under Apache-2.0; keepass2android is written in C# under GPL-3.0. hydra has attracted 9% as many forks as stars, keepass2android 8%. keepass2android 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
| hydra | keepass2android | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 6.4K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Go | C# |
| Last push | 2026-07-29 | 2026-10-29 |
| Forks | ⑂ 1.6K | ⑂ 484 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick hydra if
- You weight community size — 18K 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 keepass2android if
- You want the keepass2android feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches C#
- You evaluated both and keepass2android fits your workflow better
About hydra
Chat · Discussions · Newsletter · Docs · Try Ory Network · Jobs Ory Hydra is a hardened, OpenID Certified OAuth 2.0 Server and OpenID Connect Provider optimized for low latency, high throughput, and low resource consumption. It connects to your existing identity provider through a login and consent app, giving you absolute control over the user interface and experience. What is Ory Hydra? Why Ory Hydra OAuth2 and OpenID Connect: Open Standards OpenID Connect Certified Deployment options Use Ory Hydra on the Ory Network Self host Ory Hydra Quickstart Who is using Ory Hydra Ecosystem Ory Kratos: Identity and User…
read the full hydra overview →
About keepass2android
Keepass2Android What is Keepass2Android? Keepass2Android is a password manager app. It allows to store and retrieve passwords and other sensitive information in a file called "database", secured with a strong key. The password database file can be synchronized across different devices. This works best using one of the built in cloud storage options, but can also be performed with third party apps. Keepass2Android is compatible with KeePass 2.x and KeepassXC on PCs as well as many other KeePass ports for a variety of platforms. Where to get it? Regular stable releases of Keepass2Android are available on Google…
read the full keepass2android overview →
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Frequently asked questions
Is hydra or keepass2android more popular?
hydra has 17,646 GitHub stars and keepass2android has 6,366. hydra has the larger community by that measure.
Are hydra and keepass2android free?
Both are open source. hydra is licensed under Apache-2.0 and keepass2android under GPL-3.0. Neither carries a licence fee.
What is the difference between hydra and keepass2android?
hydra is written in Go and keepass2android in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, hydra or keepass2android?
Choose hydra if you want the larger community (17,646 stars) or its Apache-2.0 licence terms. Choose keepass2android if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.