head to head · open source
Midday vs Lago
Midday has 15,014 GitHub stars, 1,876 forks, 17 open issues and last shipped 3 months ago. Lago has 10,568 stars, 750 forks, 23 open issues and last shipped yesterday. Midday leads on adoption by 42% (15,014 vs 10,568 stars). Midday is written in TypeScript under AGPL-3.0; Lago is written in Go under AGPL-3.0. Midday has attracted 12% as many forks as stars, Lago 7%. 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
| Midday | Lago | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 11K |
| License | AGPL-3.0 | AGPL-3.0 |
| Written in | TypeScript | Go |
| Last push | 2026-06-13 | 2026-09-17 |
| Forks | ⑂ 1.9K | ⑂ 750 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Midday if
- You weight community size — 15K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Lago if
- You want the Lago feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Go
- You evaluated both and Lago fits your workflow better
About Midday
Midday is an open source business finance and operations tool for freelancers, contractors, consultants, and solo entrepreneurs. It is built in the TypeScript and Next.js ecosystem, with Supabase and TailwindCSS in its stack, and it aims to gather invoicing, time tracking, file reconciliation, storage, financial overview, and an assistant into one system.
read the full Midday overview →
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.
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Frequently asked questions
Is Midday or Lago more popular?
Midday has 15,014 GitHub stars and Lago has 10,568. Midday has the larger community by that measure.
Are Midday and Lago free?
Both are open source. Midday is licensed under AGPL-3.0 and Lago under AGPL-3.0. Neither carries a licence fee.
What is the difference between Midday and Lago?
Midday is written in TypeScript and Lago in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Midday or Lago?
Choose Midday if you want the larger community (15,014 stars) or its AGPL-3.0 licence terms. Choose Lago if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.