head to head · open source
SolidTime vs Hackatime
SolidTime has 9,102 GitHub stars, 532 forks, 32 open issues and last shipped yesterday. Hackatime has 216 stars, 181 forks, 114 open issues and last shipped yesterday. SolidTime leads on adoption by 4,114% (9,102 vs 216 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 84%. 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.
← all 20902 open source comparisons
Side by side
| SolidTime | Hackatime | |
|---|---|---|
| GitHub stars | ★ 9.1K | ★ 216 |
| License | AGPL-3.0 | MIT |
| Written in | PHP | Ruby |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 532 | ⑂ 181 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SolidTime if
- You weight community size — 9.1K 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 The modern Open Source TimeTracker solidtime is a modern open source time tracking application for Freelancers and Agencies. Features Time tracking: Track your time with a modern and easy to use interface Projects: Create and manage projects and assign project members Tasks: Create and manage tasks and assign tasks to projects Clients: Create and manage clients and assign clients to projects Billable rates: Set billable rates for projects, project members, organization members and organizations Multiple organizations: Create and manage multiple organizations with one account Roles and permissions…
read the full SolidTime overview →
About Hackatime
Documentation The free, open source, WakaTime compatible coding time tracker from Hack Club. Local development Please read DEVELOPMENT.md for instructions on setting up and running the project locally. Installer repo Looking for the installer code? It's over at hackclub/hackatime setup. License Hackatime is licensed under the MIT License. Go wild!
read the full Hackatime overview →
More in Productivity & Utilities
Related comparisons
More Time & Task Management projects
Compare either of these against the rest of the Time & Task Management field.
Frequently asked questions
Is SolidTime or Hackatime more popular?
SolidTime has 9,102 GitHub stars and Hackatime has 216. 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 (9,102 stars) or its AGPL-3.0 licence terms. Choose Hackatime if its feature set, stack or MIT licence fits better. Both are self-hostable.