head to head · open source
Midday vs Expensify
Midday has 15,014 GitHub stars, 1,876 forks, 17 open issues and last shipped 3 months ago. Expensify has 5,025 stars, 4,010 forks, 2,252 open issues and last shipped yesterday. Midday leads on adoption by 199% (15,014 vs 5,025 stars). Midday is written in TypeScript under AGPL-3.0; Expensify is written in TypeScript under MIT. Midday has attracted 12% as many forks as stars, Expensify 80%. Expensify 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 | Expensify | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 5.0K |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-06-13 | 2026-09-17 |
| Forks | ⑂ 1.9K | ⑂ 4.0K |
| 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 Expensify if
- You want the Expensify feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Expensify 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 Expensify
Expensify (New Expensify) is a chat centered financial collaboration application built in TypeScript and published under the MIT license, aimed at developers and contributors who build and extend expense management workflows across web, iOS, and Android.
read the full Expensify overview →
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Frequently asked questions
Is Midday or Expensify more popular?
Midday has 15,014 GitHub stars and Expensify has 5,025. Midday has the larger community by that measure.
Are Midday and Expensify free?
Both are open source. Midday is licensed under AGPL-3.0 and Expensify under MIT. Neither carries a licence fee.
What is the difference between Midday and Expensify?
Midday is written in TypeScript and Expensify 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, Midday or Expensify?
Choose Midday if you want the larger community (15,014 stars) or its AGPL-3.0 licence terms. Choose Expensify if its feature set, stack or MIT licence fits better. Both are self-hostable.