Open-source time tracking apps in 2026
30 open-source projects, ranked by GitHub stars and how recently each was worked on. ActivityWatch leads with 19k stars, ahead of Solidtime. 25 had code pushed in the last three months. Most common licenses: MIT (9), GPL-3.0 (8) and AGPL-3.0 (7). Commercial time tracking apps are listed separately.
All open-source time tracking apps, ranked
Complete systems you can adopt 17
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1
ActivityWatch ActivityWatch
The best free and open-source automated time tracker. Cross-platform, extensible, privacy-focused.
Complete system Production-ready You want private automatic time tracking without a cloud service.
★ 19k MPL-2.0 Python Active, pushed 7 days ago -
2
Solidtime solidtime-io
Modern open-source time-tracking app
Complete system Usable An agency wants a modern self-hosted Toggl or Clockify replacement.
★ 9k AGPL-3.0 PHP Active, pushed 7 days ago -
3
Kimai kimai
Kimai is the #1 open-source time-tracking application. From freelancers to companies and organisations - everyone can manage timesheets, generate reports, create invoices and so much more... Web-based multi-user application, available as On-Premise or SaaS version: https://www.kimai.org
Complete system Production-ready A freelancer or company with many staff needs proven self-hosted time tracking and invoicing.
★ 5.1k AGPL-3.0 PHP Active, pushed 7 days ago -
4
Invobook Hasnayeen
Self-hosted app for Time Tracking, Invoice Generation, Project & Client Management, built with Laravel & Filament.
Complete system Experimental Hold off; the author says it is undergoing major changes and pivoting.
★ 2.2k MIT Blade Active, pushed 11 days ago -
5
Server traggo
self-hosted tag-based time tracking
Complete system Usable You want flexible personal time tracking and like tags over fixed project hierarchies.
★ 1.6k GPL-3.0 Go Active, pushed 36 days ago -
6
Lotti matthiasn
A private logbook with a staff of personal AI assistants. Agents read what you record and propose what to do next — you approve the changes. End-to-end encrypted sync between your own devices — servers only ever see ciphertext. Local AI optional.
Complete system Usable You want a local-first personal journal and task log with optional local AI.
★ 1.2k GPL-3.0 Dart Active, pushed 7 days ago -
7
Time-tracker-4-browser sheepzh
A browser extension that helps you track time, analyze your habits and block addictive sites
Complete system Production-ready You want to see where your browsing time goes and keep the data in your own browser.
★ 1k MIT TypeScript Active, pushed yesterday -
8
TimeScribe WINBIGFOX
Modern & private time tracking for macOS & Windows. No cloud, no registration, no paywall. Just download and track your work hours 100% offline.
Complete system Usable An employee or freelancer wants to log their own hours privately on their computer.
★ 926 GPL-3.0 PHP Active, pushed 42 days ago -
9
TimeTracker DRYTRIX
Self-hosted time tracking & invoicing for freelancers and teams: timers, projects, PDF and Peppol e-invoicing. Open-source Toggl/Clockify alternative.
Complete system Usable A European freelancer or small firm needs time tracking and Peppol-compliant invoicing on its own server.
★ 634 GPL-3.0 Python Active, pushed 6 days ago -
10
Ever Teams ever-co
Ever® Teams™ - The Workplace for Humans. Open Work & Productivity Platform - https://ever.team
Complete system Usable A remote team wants open-source time tracking tied to tasks and is willing to run Gauzy.
★ 598 AGPL-3.0 TypeScript Active, pushed 7 days ago -
11
Titra titraio
titra - modern open source project time tracking for freelancers and small teams
Complete system Usable A small team wants simple self-hosted time tracking and can run MongoDB.
★ 497 AGPL-3.0 JavaScript Active, pushed 2 months ago -
12
Time to Leave TTLApp
Log work hours and get notified when it's time to leave the office and start to live.
Complete system Usable You work fixed daily hours and want a simple personal timecard.
★ 489 GPL-3.0 JavaScript Active, pushed 5 days ago -
13
Solidtime-desktop solidtime-io
solidtime timetracker desktop app for macOS, Windows and Linux
Complete system Experimental Your team tracks time in solidtime and you want a desktop timer.
★ 367 AGPL-3.0 TypeScript Active, pushed 33 days ago -
14
Miru-web saeloun
Miru | Time Tracking and Invoicing and Employee Benefits. Built using Ruby On Rails and ReactJS
Complete system Usable A services firm wants to replace separate timer, invoicing and expense tools with one self-hosted app.
★ 268 MIT TypeScript Active, pushed 2 days ago -
15
Minute ktmouk
⏰ The open-source time tracking app for individuals.
Complete system Experimental You want a personal, self-hosted time log rather than a team billing tool.
★ 261 AGPL-3.0 TypeScript Active, pushed 12 days ago -
16
Ziit 0PandaDEV
The Swiss army knife of code time tracking.
Complete system Usable You want WakaTime-style coding stats without sending data to a third party.
★ 257 AGPL-3.0 TypeScript Active, pushed 11 days ago -
17
Cronomix zagortenay333
All-in-one timer, stopwatch, pomodoro, alarm, todo, time tracker and flashcards gnome-shell extension
Complete system Usable You use GNOME and want these tools in the top bar.
★ 657 MIT TypeScript Slowing, pushed 7 months ago
Building blocks for your own system 1
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1
Travels mutativejs
A fast, framework-agnostic undo/redo core powered by Mutative JSON Patch
Building block Usable You are adding undo and redo to an editor, drawing tool or form builder in JavaScript.
★ 918 MIT TypeScript Active, pushed 15 days ago
Integrations 5
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1
Aw-watcher-web ActivityWatch
Browser watcher for ActivityWatch
Integration Production-ready You use ActivityWatch and want per-site detail in your time reports.
★ 564 MPL-2.0 TypeScript Active, pushed 23 days ago -
2
Awatcher 2e3s
Activity and idle watchers
Integration Usable You use ActivityWatch on Linux and the default watchers do not support your desktop.
★ 318 MPL-2.0 Rust Active, pushed 41 days ago -
3
Operon hasanyilmaz
Task management system for humans and agents in Obsidian.
Integration Experimental You plan your work in Obsidian and want richer task management there.
★ 291 GPL-3.0 TypeScript Active, pushed 3 days ago -
4
Browser-wakatime wakatime
Chrome extension for automatic time tracking and metrics generated from your browsing activity.
Integration Production-ready You use WakaTime and want research and documentation time counted alongside coding.
★ 489 BSD-3-Clause TypeScript Slowing, pushed 5 months ago -
5
Visualstudio-wakatime wakatime
Visual Studio plugin for automatic time tracking and metrics generated from your programming activity.
Integration Production-ready You use Visual Studio and WakaTime.
★ 352 BSD-3-Clause C# Slowing, pushed 7 months ago
Developer tools 7
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1
Timewarrior GothenburgBitFactory
Timewarrior - Commandline Time Tracking and Reporting
Developer tool Production-ready You track time from the terminal and want strong reporting.
★ 1.7k MIT C++ Active, pushed 17 days ago -
2
Watson jazzband
:watch: A wonderful CLI to track your time!
Developer tool Usable A freelancer who lives in the terminal wants simple time logs.
★ 2.5k MIT Python Slowing, pushed 11 months ago -
3
Klog jotaen
Command-line tool for time tracking in a human-readable, plain-text file format.
Developer tool Usable You want time records in a readable text file you can keep in git.
★ 690 MIT Go Active, pushed 11 days ago -
4
Tock kriuchkov
Tock is a powerful time tracking tool for the command line. It saves activity logs as plaintext files and provides an interactive terminal UI for viewing your time.
Developer tool Usable You want Timewarrior-style tracking with a nicer terminal interface.
★ 498 GPL-3.0 Go Active, pushed 11 days ago -
5
WakaTime CLI wakatime
Command line interface used by all WakaTime text editor plugins
Developer tool Production-ready You use WakaTime or a compatible self-hosted server; plugins install it for you.
★ 464 BSD-3-Clause Go Active, pushed 6 days ago -
6
Hours dhth
A no-frills time tracking toolkit for command line nerds
Developer tool Usable You want very simple task time tracking without leaving the terminal.
★ 353 MIT Go Active, pushed 10 days ago -
7
Bartib nikolassv
A simple timetracker for the command line. It saves a log of all tracked activities as a plaintext file and allows you to create flexible reports.
Developer tool Usable You want terminal time tracking with data you can read and edit by hand.
★ 856 GPL-3.0 Rust Slowing, pushed 7 months ago
Compared head to head
Open-source licenses
- Permissive: 12. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.
- Strong copyleft: 8. If you distribute the program or anything built on it, you must release the whole source under the same license.
- Network copyleft: 7. Like GPL, and running a changed version as a web service counts as distributing it, so its users get the source too.
- Weak copyleft: 3. Changes to the licensed files must be shared, but you can link them into a closed program.
Languages
TypeScript 11, Go 5, Python 3, PHP 3, JavaScript 2, Rust 2, Blade 1, C++ 1, Dart 1 and C# 1.
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