Open source alternatives to Timely

By GitHub stars it is Super Productivity, with 23,662 stars and a commit on 13 Nov. Choose Super Productivity when you are happy to start a timer yourself and want work logs and timesheets without paying per user. Next come Ever Gauzy (8,813 stars) and Ever Teams (606 stars).

Yes. The code of all 3 is public under MIT or AGPL 3.0, so you can use them with no licence fee. Running one yourself costs the server and your time to look after it, and some makers also sell a hosted plan.

Start from the job you use Timely for. Choose Ever Gauzy when you want team time tracking with screenshots tied to projects, invoices and payroll on a server you control. Choose Ever Teams when you want tracked hours tied to team tasks, with a free cloud plan for up to 15 members.

All 3: Super Productivity, Ever Gauzy and Ever Teams. Each tool's page says what it needs to run.

All 3 we track had a commit in the last 30 days, among them Super Productivity, Ever Gauzy and Ever Teams. A recent commit shows the project is kept up, not that it will stay that way.

AGPL 3.0 (2), MIT (1). MIT, BSD and Apache let you change and reuse the code freely. GPL and AGPL ask you to share your changes under the same licence when you give the software to others, and AGPL also counts letting people use it over a network.

The hosting. Timely's maker runs the servers for you; with an open source tool the updates, backups, security fixes and support are yours, unless you take the maker's hosted plan. Features differ too, so check what each one imports and exports before you move your data.