Solidtime vs TimeTagger
A side-by-side comparison of two self-hosted time tracking options — licensing, setup difficulty, resource needs, and what each one replaces.
Solidtime
Modern open-source time tracker for teams
VS
TimeTagger
Tag-based time tracker with an interactive timeline
| Feature | Solidtime | TimeTagger |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 92 · Excellent | 71 · Good |
| Category | Time Tracking | Time Tracking |
| License | AGPL-3.0 | GPL-3.0 |
| Language | PHP | Python |
| Setup difficulty | Medium | Easy |
| Min. RAM | 512 MB | 128 MB |
| Deployment | docker, source | docker, source |
| GitHub stars | ★ 8,929 | ★ 1,789 |
| First released | 2024 | 2021 |
| Replaces | Toggl, Clockify, Harvest | Toggl, Harvest |
What are Solidtime and TimeTagger?
Solidtime
Solidtime is a modern, open-source time tracking application built for freelancers and agencies. It supports projects, clients, billable rates, and team reporting.
- Project and client billing rates
- Team time reporting
- Modern responsive UI
- REST API
TimeTagger
TimeTagger is an open-source time tracking app with an interactive timeline interface. Records are organized with hashtags, making reporting fast and flexible.
- Interactive timeline view
- Hashtag-based organization
- Live reporting
- Works offline as a PWA
Solidtime vs TimeTagger: key differences
Solidtime is written in PHP, while TimeTagger is built with Python. Licensing differs — AGPL-3.0 for Solidtime versus GPL-3.0 for TimeTagger. TimeTagger is the lighter option, starting around 128 MB of RAM against 512 MB for Solidtime. TimeTagger is the more established project (first released 2021), while Solidtime arrived in 2024. Solidtime has the considerably larger community, at 8,929 GitHub stars versus 1,789.
Why pick each one
Choose Solidtime if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Mature project with 8.9k GitHub stars
- Written in PHP
Choose TimeTagger if…
- Released under the GPL-3.0 license
- Easy to set up — beginner-friendly
- First-class Docker support for quick deployment
- Active community (1.8k GitHub stars)
Frequently asked questions
Is Solidtime or TimeTagger better?
Neither is universally better. Solidtime has the larger community, while TimeTagger is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Solidtime and TimeTagger free and open-source?
Yes. Solidtime is licensed under AGPL-3.0 and TimeTagger under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Solidtime and TimeTagger with Docker?
Solidtime: yes. TimeTagger: yes.
Which is lighter on resources, Solidtime or TimeTagger?
TimeTagger has the smaller minimum footprint at 128 MB of RAM, compared to about 512 MB for Solidtime. Real-world usage depends on library size, user count, and enabled features.