head to head · open source
SolidTime vs Hackatime
SolidTime has 8,923 GitHub stars, 507 forks, 32 open issues and last shipped yesterday. Hackatime has 204 stars, 169 forks, 114 open issues and last shipped yesterday. SolidTime leads on adoption by 4,274% (8,923 vs 204 stars). SolidTime is written in PHP under AGPL-3.0; Hackatime is written in Ruby under MIT. SolidTime has attracted 6% as many forks as stars, Hackatime 83%. Hackatime 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
| SolidTime | Hackatime | |
|---|---|---|
| GitHub stars | ★ 8.9K | ★ 204 |
| License | AGPL-3.0 | MIT |
| Written in | PHP | Ruby |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 507 | ⑂ 169 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SolidTime if
- You weight community size — 8.9K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick Hackatime if
- You want the Hackatime feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Ruby
- You evaluated both and Hackatime fits your workflow better
About SolidTime
SolidTime is a modern open source time tracking application built for freelancers and agencies. It is written in PHP on the Laravel framework, with a Vue front end, and it lives in the Laravel and Vue ecosystems that its topic list names. The project is licensed under the GNU Affero General Public License v3.0 and is developed in the solidtime io/solidtime repository. It ships with 8,923 stars, 508 forks, and 32 open issues at the time of writing, and it presents itself as a self hosted alternative with an optional hosted service.
read the full SolidTime overview →
About Hackatime
Hackatime is a free, open source, WakaTime compatible coding time tracker built by Hack Club that records how long a developer spends coding across more than 70 editors, and it is intended for individual programmers and Hack Club community members who want that time data collected and displayed without paying for a proprietary service.
read the full Hackatime overview →
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Frequently asked questions
Is SolidTime or Hackatime more popular?
SolidTime has 8,923 GitHub stars and Hackatime has 204. SolidTime has the larger community by that measure.
Are SolidTime and Hackatime free?
Both are open source. SolidTime is licensed under AGPL-3.0 and Hackatime under MIT. Neither carries a licence fee.
What is the difference between SolidTime and Hackatime?
SolidTime is written in PHP and Hackatime in Ruby. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, SolidTime or Hackatime?
Choose SolidTime if you want the larger community (8,923 stars) or its AGPL-3.0 licence terms. Choose Hackatime if its feature set, stack or MIT licence fits better. Both are self-hostable.