Open alternatives2
Open-source apps that replace Toggl and Clockify

solidtime is a time tracking app that lets you log hours on projects, tasks and clients. It is aimed at freelancers and agencies, and can be used through its cloud service or self-hosted.

Kimai is a web-based tool for tracking how much time you spend on projects and clients, and it can produce invoices and reports from that data. It is aimed at freelancers and companies of any size.
What's missing
What people still miss here, and wish existed. Upvote what matters to you.
Before you build
Planning something for time tracking? See what exists first, so you can reuse parts or explain what's different. Paste this into any AI assistant:
Fix the list itself
A project or closed app missing from this list, or a mistake on it? These open a short form on GitHub, and a mod reviews it. To say what a project can't do, use What's missing.
About this page
Replaces fully means it does the main job of these apps; Replaces partly means it covers some of it.
Licenses: every project here uses an open-source license (what each one means). Open core means some parts are paid or under another license.
GitHub stars are shown for reference. They measure popularity, not whether it replaces anything.
Verified means r/TrueOpenSource mods checked it: open-source license, maintained, and it really does the job.
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