Fewer subscriptions.
More vibe-coding.

Open-source tools & agent skills to build the things you’re paying for.

Kimai

Project5.1K

Self-hostable time tracking, invoicing, and reporting for individuals and teams.

Added 2026-10-07
Replaces
GitHub

What you can build

  • Build a report tool that reads time data obtained through Kimai’s API or exports, groups hours by client and project, and produces a client-ready summary.
  • Build a reconciliation tool that compares exported billable time and rates with invoice line items, then outputs discrepancies for review.
  • Build a forecast that combines project budgets with recorded time and rates, then outputs estimated budget consumption and projected overruns.
  • Build a transformation that applies your chosen rounding rules to exported time entries and produces an adjusted billing worksheet alongside the originals.
  • Build a planning tool that turns recent time reports and manually entered availability into a project-by-person allocation proposal.

Try this prompt

Build a small client time-report generator using Kimai’s documented JSON API or user-provided exports as input. Let the user select a reporting period and client, aggregate recorded hours by project, and produce a downloadable summary with source entries available for checking. Keep source data unchanged, report missing or unrecognized values instead of silently dropping them, and document the input assumptions and setup. Do not invent undocumented Kimai endpoints.

Get started

  1. Check requirements

    Plan for PHP 8.2 or newer, MariaDB 10.6 or newer or MySQL 8.4 or newer, a web server, a subdomain, and the PHP extensions listed in the README.

  2. Choose a deployment route

    Use the official installation documentation for SSH setup with Git and Composer, or follow the documented Docker image options: https://www.kimai.org/documentation/installation.html

  3. Explore integration development

    Kimai documents a JSON API and developer setup for integrations. Start with its developer documentation before designing an API-backed adaptation: https://www.kimai.org/documentation/developers.html

License & notes

AGPL-3.0The software is AGPL-3.0 and can be self-hosted; hosting, database, domain, and operational costs are separate. Kimai also offers a cloud version and a marketplace with paid and free plugins, which may have separate costs. No prices are supplied here. Commercial use is permitted under AGPL-3.0, but conveying modified versions has source and notice obligations; operating a modified version as a network service requires offering its source to users interacting with it.

  • Self-hosting requires maintaining a PHP web application, database, web server, and domain; the README lists supported requirements but does not quote hosting prices.
  • AGPL-3.0 permits commercial use. If you convey a modified version, comply with its source and notice terms; if users interact remotely with your modified version, offer them its source.
  • Kimai includes invoicing and reporting, but the supplied evidence does not establish payroll processing, accounting-system integrations, or specific export formats.
  • Cloud service and marketplace plugins may have separate terms or costs; their pricing and limits are not provided here.

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