Best Open-source Time Tracking & Timesheets tools

solidtime

Modern time-tracking app for freelancers and agencies

Kimai

Professional open-source time-tracking for freelancers and teams

Ever Gauzy

Open Business Management Platform for Modern Collaborative Economies

Timewarrior

Command-line time tracking with stopwatch and calendar backfill

Wakapi

Self-hosted, WakaTime-compatible backend for coding statistics tracking

ActivityWatch

Privacy-first time tracking that keeps your data local

Midday

All-in-one business management platform for solo entrepreneurs

Traggo

Self-hosted tag-based time tracker with customizable dashboards

InvoBook

Self-hosted invoicing and time tracking for freelancers and teams

Timestrap

Self‑hosted time tracker with flexible exports and extensibility.

ulogme

Local activity tracker visualizing computer usage with timelines

Selfspy

Continuously logs computer activity for personal analytics