head to head · open source
Lago vs TimeTracker
Lago has 10,801 GitHub stars, 785 forks, 23 open issues and last shipped yesterday. TimeTracker has 641 stars, 82 forks, 5 open issues and last shipped yesterday. Lago leads on adoption by 1,585% (10,801 vs 641 stars). Lago is written in Go under AGPL-3.0; TimeTracker is written in Python under GPL-3.0. Lago has attracted 7% as many forks as stars, TimeTracker 13%. TimeTracker was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Lago | TimeTracker | |
|---|---|---|
| GitHub stars | ★ 11K | ★ 641 |
| License | AGPL-3.0 | GPL-3.0 |
| Written in | Go | Python |
| Last push | 2026-11-12 | 2026-11-12 |
| Forks | ⑂ 785 | ⑂ 82 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Lago if
- You weight community size — 11K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick TimeTracker if
- You want the TimeTracker feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Python
- You evaluated both and TimeTracker fits your workflow better
About Lago
Lago Agentic first, open source monetization infrastructure for AI products Meter tokens, compute, API calls, or any product usage. Turn usage into pricing, credits, entitlements, invoices, payments, and revenue. Use Lago Direct for your own product, or Lago Embedded to power monetization for your customers. Run the AI billing demo · Documentation · Talk to us about Lago Cloud “Lago has been able to follow the pace of our releases and has allowed us to focus on what we do best.” Timothée Lacroix, CTO at Mistral AI · Read the customer story See Lago price an AI workload Run the maintained demo from this…
About TimeTracker
TimeTracker Self hosted time tracking, invoicing and Peppol e invoicing for freelancers and teams — with no per seat fees. Live demo · Website · Docs · Changelog Quick start (60 seconds) No git clone, no certificate warning — plain HTTP on port 8080 with bundled PostgreSQL: Latest release: v5.18.0 — see CHANGELOG.md. More install paths (HTTPS production, NAS UI paste, cloud): Install options. Why TimeTracker? Peppol & EN 16931 e invoicing — Send invoices yourself via the bundled Peppol Bridge; embed Factur X / ZUGFeRD XML in PDFs. No paid SaaS middleman for e invoicing. Self hosted — Your timers, clients, and…
read the full TimeTracker overview →
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Frequently asked questions
Is Lago or TimeTracker more popular?
Lago has 10,801 GitHub stars and TimeTracker has 641. Lago has the larger community by that measure.
Are Lago and TimeTracker free?
Both are open source. Lago is licensed under AGPL-3.0 and TimeTracker under GPL-3.0. Neither carries a licence fee.
What is the difference between Lago and TimeTracker?
Lago is written in Go and TimeTracker in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Lago or TimeTracker?
Choose Lago if you want the larger community (10,801 stars) or its AGPL-3.0 licence terms. Choose TimeTracker if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.