Open-source Harvest alternatives

Solidtime is a contemporary time tracking application for freelancers and agencies, released as open source. It provides an easy-to-use interface for logging time against projects and tasks, and is built with Laravel and Vue.

Beyond tracking time, you can create and manage projects with members, tasks inside projects, and clients attached to projects. Billable rates can be set for projects, project members, organization members and whole organizations. One account can manage multiple organizations, roles and permissions control access, and data can be imported from Toggl, Clockify and generic time entry CSV files.

Solidtime can be self-hosted using the published guides and an examples repository, or used through solidtime cloud if you do not want to run it. It is licensed under AGPL-3.0, and the contributing rules ask for an issue or discussion before pull requests. It suits small teams moving off Toggl or Clockify who want billing-friendly reports and control over their data.

Kimai is a professional time-tracking application that is free and open source. It handles use cases from solo freelancers to companies with dozens or hundreds of users, letting people record the time they spend on customers and projects, review timesheets and produce reports and invoices.

The feature list includes a JSON API, invoicing, data exports, multiple timers, a punch-in and punch-out mode, tags, multi-user support with multiple time zones, and translations into more than 30 languages. For security and administration it offers authentication via SAML, LDAP or the local database, two-factor authentication with TOTP, customizable role and team permissions and a responsive design. The application is built with PHP and Symfony.

Kimai is licensed under AGPL-3.0 and can be run on-premises on your own server, or you can use the SaaS version offered by the project. It suits freelancers, agencies and small and mid-sized companies that bill by the hour and want to keep time data under their control.

Midday is an open-source business assistant for freelancers, contractors, consultants and solo entrepreneurs. It brings functions that are usually spread across several tools into one system, covering time tracking, invoicing, matching receipts to transactions, secure file storage and an overview of finances. The code is TypeScript and is licensed under AGPL-3.0.

According to its README, time tracking records live work on projects, Magic Inbox matches incoming invoices and receipts to the correct transactions, and Vault stores contracts and agreements. Financial data can be exported as CSV files for accountants. An assistant provides insights into spending patterns and helps locate documents. Invoicing was listed as an upcoming feature in the README at the time of the snapshot.

The architecture is a monorepo using Bun, React, Next.js, Supabase, shadcn and Tailwind CSS, with Tauri and Expo for apps. Bank connections use GoCardless in Europe and Plaid or Teller in North America, and the hosted service runs on Supabase, Railway, Vercel and Cloudflare. The README says documentation for local development is still being written.

Traggo is a self-hosted time tracking tool with an unusual model: there are no tasks or projects, only tagged time spans. You decide what the tags mean, so you might add a project tag for client work and a type tag with values like email, programming or meeting to see how your hours are really spent.

The web interface offers customizable dashboards with diagrams, a list view and a calendar view of tracked time, several themes, and simple user management. It is designed to be easy to set up, and the project provides an install guide and configuration documentation. Because you run it yourself, no third party can read your time data.

Traggo is written in Go and licensed under GPL-3.0. It ships as a server you host on your own machine or a small VPS, with versioning based on SemVer. It suits freelancers, small teams and individuals who want flexible, privacy-respecting time statistics and who prefer organizing work with free-form tags rather than a fixed project hierarchy.

Watson is a command-line tool for tracking how much time you spend on your projects, for example to prepare a report for a client. This listing is named after the Jazzband community that maintains the project. You start the timer with a start command and stop it with a stop command, which records what Watson calls a frame.

Each frame holds a project name and optional tags, and tags can be shared across projects to build detailed reports. Everything is stored on your own computer, and the sync command can upload sessions to your own crick server so they can be kept remotely and shared with colleagues.

Watson is written in Python and runs on any platform Python supports, including Windows, macOS, Linux and BSD. It installs with pip as td-watson, through Homebrew on macOS, or from distribution packages such as the Arch Linux AUR. The documentation has a user guide, command reference and configuration pages, and the project is MIT licensed.