head to head · open source
Lago vs Invio
Lago has 10,568 GitHub stars, 750 forks, 23 open issues and last shipped yesterday. Invio has 1,183 stars, 140 forks, 17 open issues and last shipped 11 days ago. Lago leads on adoption by 793% (10,568 vs 1,183 stars). Lago is written in Go under AGPL-3.0; Invio is written in TypeScript under Unlicense. Lago has attracted 7% as many forks as stars, Invio 12%. Lago 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 | Invio | |
|---|---|---|
| GitHub stars | ★ 11K | ★ 1.2K |
| License | AGPL-3.0 | Unlicense |
| Written in | Go | TypeScript |
| Last push | 2026-09-17 | 2026-09-07 |
| Forks | ⑂ 750 | ⑂ 140 |
| 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 Invio if
- You want the Invio feature set and don't need the biggest community
- You prefer the Unlicense license terms
- Your stack matches TypeScript
- You evaluated both and Invio fits your workflow better
About Lago
Lago is an open source metering and usage based billing API written in Go under AGPL 3.0. It lives in the Business Software and Finance & Accounting ecosystem and sits between product usage and revenue. It turns events such as AI tokens, compute, API calls, seats, and custom events into billable metrics, pricing, credits, entitlements, invoices, and payments.
About Invio
Invio is a free, self hosted, open source invoicing application written in TypeScript that lets a user create an invoice, share a secure link, and get paid without requiring the client to create an account.
read the full Invio overview →
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Frequently asked questions
Is Lago or Invio more popular?
Lago has 10,568 GitHub stars and Invio has 1,183. Lago has the larger community by that measure.
Are Lago and Invio free?
Both are open source. Lago is licensed under AGPL-3.0 and Invio under Unlicense. Neither carries a licence fee.
What is the difference between Lago and Invio?
Lago is written in Go and Invio in TypeScript. 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 Invio?
Choose Lago if you want the larger community (10,568 stars) or its AGPL-3.0 licence terms. Choose Invio if its feature set, stack or Unlicense licence fits better. Both are self-hostable.