Looking for a solidtime Alternative?
TimeTracker is a free, self-hosted, GPL-3.0 time tracker with Kanban boards, budgets, and invoicing built into the core app.
Last updated: September 17, 2026
- GPL-3.0 licensed, free for unlimited users, self-hosted
- Kanban boards and project budgets in the base install
- Built-in PDF invoicing with status tracking
- Peppol & Factur-X/ZUGFeRD e-invoicing (EN 16931) built in
- Docker-first deployment, SQLite or PostgreSQL
Demo: timetracker-demo.drytrix.com · Also compare: TimeTracker vs Kimai | Compare with all alternatives
Why some teams choose TimeTracker over solidtime
Invoicing in the free core app — including Peppol
TimeTracker generates PDF invoices from tracked time, with status tracking (draft → sent → paid), Peppol network sending and Factur-X/ZUGFeRD (EN 16931) PDF embedding — all directly in the base install. solidtime's invoicing is a paid feature on its cloud plans and a separate extension for self-hosting.
Kanban alongside timers
TimeTracker pairs timers with drag-and-drop Kanban boards for task status, so project management and time tracking live in one screen.
GPL-3.0 instead of AGPL-3.0
solidtime is AGPL-3.0, which extends copyleft obligations to modified versions offered over a network. TimeTracker's GPL-3.0 license doesn't carry that network clause — worth checking against your organization's license policy.
A more established feature set for billing workflows
solidtime is newer and leans on automatic activity tracking and a polished UI; TimeTracker leans on billing and project-management depth. Pick based on which workflow matters more to your team.
When solidtime is still the better tool
solidtime's polish and automatic tracking make it a strong choice if:
- You want automatic app/window activity tracking and idle detection out of the box.
- You're migrating from Toggl or Clockify and want a guided import tool.
- You manage several organizations from a single account and need that built in.
If none of those apply, deploy TimeTracker and keep the detailed side-by-side on TimeTracker vs solidtime.
Try TimeTracker today — it's free
Self-host TimeTracker in 5 minutes with Docker and see if it fits your workflow better than solidtime.