head to head · open source
thc-hydra vs clairvoyance
thc-hydra has 12,401 GitHub stars, 2,683 forks, 50 open issues and last shipped 3 months ago. clairvoyance has 1,546 stars, 138 forks, 42 open issues and last shipped 11 months ago. thc-hydra leads on adoption by 702% (12,401 vs 1,546 stars). thc-hydra is written in C under AGPL-3.0; clairvoyance is written in Python under Apache-2.0. thc-hydra has attracted 22% as many forks as stars, clairvoyance 9%. thc-hydra was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (penetration-testing), 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
| thc-hydra | clairvoyance | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 1.5K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | C | Python |
| Last push | 2026-07-30 | 2025-12-05 |
| Forks | ⑂ 2.7K | ⑂ 138 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick thc-hydra if
- You weight community size — 12K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches C
- You value the larger contributor base for long-term maintenance
pick clairvoyance if
- You want the clairvoyance feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and clairvoyance fits your workflow better
About thc-hydra
H Y D R A (c) 2001 2023 by van Hauser / THC Many modules were written by David (dot) Maciejak @ gmail (dot) com BFG code by Jan Dlabal Licensed under AGPLv3 (see LICENSE file) Please do not use in military or secret service organizations, or for illegal purposes. (This is the wish of the author and non binding. Many people working in these organizations do not care for laws and ethics anyway. You are not one of the "good" ones if you ignore this.) NOTE: No, this is not meant to be a markdown doc! old school! Hydra in the most current GitHub state can be directly downloaded via Docker: INTRODUCTION Number one of…
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About clairvoyance
Clairvoyance Obtain GraphQL API schema even if the introspection is disabled. Introduction Some GraphQL APIs have disabled introspection. For example, Apollo Server disables introspection automatically if the NODE ENV environment variable is set to production . Clairvoyance helps to obtain GraphQL API schema even if the introspection is disabled. It produces schema in JSON format suitable for other tools like GraphQL Voyager, InQL or graphql path enum. Getting Started pip docker Advanced Usage Which wordlist should I use? There are at least three approaches: Use one of the wordlists collected by Escape…
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Frequently asked questions
Is thc-hydra or clairvoyance more popular?
thc-hydra has 12,401 GitHub stars and clairvoyance has 1,546. thc-hydra has the larger community by that measure.
Are thc-hydra and clairvoyance free?
Both are open source. thc-hydra is licensed under AGPL-3.0 and clairvoyance under Apache-2.0. Neither carries a licence fee.
What is the difference between thc-hydra and clairvoyance?
thc-hydra is written in C and clairvoyance in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, thc-hydra or clairvoyance?
Choose thc-hydra if you want the larger community (12,401 stars) or its AGPL-3.0 licence terms. Choose clairvoyance if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.