head to head · open source
SolidTime vs Ziit
SolidTime has 9,102 GitHub stars, 532 forks, 32 open issues and last shipped yesterday. Ziit has 258 stars, 13 forks, 11 open issues and last shipped 11 days ago. SolidTime leads on adoption by 3,428% (9,102 vs 258 stars). SolidTime is written in PHP under AGPL-3.0; Ziit is written in TypeScript under AGPL-3.0. SolidTime has attracted 6% as many forks as stars, Ziit 5%. SolidTime was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (self-hosted, time-tracker, time-tracking), 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
| SolidTime | Ziit | |
|---|---|---|
| GitHub stars | ★ 9.1K | ★ 258 |
| License | AGPL-3.0 | AGPL-3.0 |
| Written in | PHP | TypeScript |
| Last push | 2026-11-02 | 2026-10-23 |
| Forks | ⑂ 532 | ⑂ 13 |
| 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 Ziit if
- You want the Ziit feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Ziit 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 Ziit
The Swiss army knife of code time tracking. Docs • Stats • Leaderboard • Discord [!IMPORTANT] Upvote Ziit on AlternativeTo, ProductHunt, PeerPush to help me promote it. Star History What is Ziit? Ziit (pronounced 'tseet') is an open source, self hostable alternative to WakaTime. It provides a clean, minimal, and fast dashboard for displaying coding statistics, while ensuring privacy by keeping all data on your own server. Ziit tracks coding activity such as projects, languages, editors, files, branches, operating systems, and time spent coding all presented in a familiar interface inspired by Plausible…
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Frequently asked questions
Is SolidTime or Ziit more popular?
SolidTime has 9,102 GitHub stars and Ziit has 258. SolidTime has the larger community by that measure.
Are SolidTime and Ziit free?
Both are open source. SolidTime is licensed under AGPL-3.0 and Ziit under AGPL-3.0. Neither carries a licence fee.
What is the difference between SolidTime and Ziit?
SolidTime is written in PHP and Ziit in TypeScript. 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 Ziit?
Choose SolidTime if you want the larger community (9,102 stars) or its AGPL-3.0 licence terms. Choose Ziit if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.