What it does
Solidtime is a time tracker for freelancers and teams that records hours by client, project, task and tag. Users can run a timer in the web app, desktop tray or browser extension, then edit time in a calendar or weekly timesheet. The cloud plans include a free single-user tier and paid team features; the project is also licensed under AGPL-3.0.
A user can start the timer while work is underway and add a project, tag or rate during or after the session. If the timer was missed, the weekly calendar supports creating a block by dragging across a time range and adjusting its edges; the timesheet groups rows by project/task and columns by day. The product also describes reports and billable-hour workflows, with richer reporting and team access controls on the paid Professional plan.
The free Solo tier is limited to one user and offers calendar, timesheet and reporting features; Professional adds team support, access management, billable rates and invoicing. The same pricing page lists automatic desktop activity tracking, which observes app/document focus; settings, retention and consent behavior were not examined. The official repository publishes AGPL-3.0 terms, while the cloud service has its own plan structure.
Strengths
- Offers live timing, calendar-based entry and a weekly timesheet in the same product.
- Tracked hours can be organized by client, project, task and tag.
- The official source is available under AGPL-3.0, and the cloud Solo plan is free for one user.
Watch out for
- The free Solo plan is limited to one user; team controls and billable-hour features are paid-plan features.
- Automatic activity tracking can record app and document focus.
Best for
- Freelancers who want to correct a missed timer in a calendar or timesheet
- Small agencies that need project hours, billable rates and shared reports
Sources
- Solidtime — Open source time tracking for teams (Oct 25, 2026)
- Time tracking — timer, calendar & timesheet — Solidtime (Oct 25, 2026)
- Cloud pricing — Solidtime (Oct 25, 2026)
- solidtime/LICENSE.md at main · solidtime-io/solidtime · GitHub (Oct 25, 2026)