head to head · open source
useSend vs UnInbox
useSend has 4,775 GitHub stars, 447 forks, 37 open issues and last shipped 3 days ago. UnInbox has 1,760 stars, 128 forks, 42 open issues and last shipped 9 months ago. useSend leads on adoption by 171% (4,775 vs 1,760 stars). useSend is written in TypeScript under AGPL-3.0; UnInbox is written in TypeScript under a custom or non-standard licence. useSend has attracted 9% as many forks as stars, UnInbox 7%. useSend was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (email), so they are genuine substitutes rather than adjacent tools.
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
| useSend | UnInbox | |
|---|---|---|
| GitHub stars | ★ 4.8K | ★ 1.8K |
| License | AGPL-3.0 | Custom / other |
| Written in | TypeScript | TypeScript |
| Last push | 2026-10-31 | 2026-02-11 |
| Forks | ⑂ 447 | ⑂ 128 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick useSend if
- You weight community size — 4.8K 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 UnInbox if
- You want the UnInbox feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and UnInbox fits your workflow better
About useSend
The Open Source sending infrastructure. Learn more » Discord . Website · Issues About this project As most of email products out there, useSend also uses Amazon SES under the hood to send emails. We provide an open and alternative way to send emails reliably and cheaply with a great dashboard. You can also use useSend manage contacts and send bulk emails(newsletter, product updates etc). We will take care of the subscriptions. Currently we only support emails, but we plan to expand to other sending protocols like SMS, push notification and even whatsapp. We are currently in beta! Features [x] Add domains [x]…
read the full useSend overview →
About UnInbox
UnInbox The Open Source Communication Infrastructure To our Website & App » UnInbox Twitter · UnInbox Discord Server :construction: Current Status UnInbox is Live! We are working on more features and infrastructure to make UnInbox better. Please join our Discord community to get the latest updates and to provide feedback. Join at app.uninbox.com. About Our core infrastructure is designed from the ground up for effective communication between you and the rest of the world. The webapp provides a flavoured experience of what email communication would be if it was re imagined for how we communicate today. Features…
read the full UnInbox overview →
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Frequently asked questions
Is useSend or UnInbox more popular?
useSend has 4,775 GitHub stars and UnInbox has 1,760. useSend has the larger community by that measure.
Are useSend and UnInbox free?
Both are open source. useSend is licensed under AGPL-3.0, and UnInbox has no licence declared in this registry. Both are free to self-host.
What is the difference between useSend and UnInbox?
useSend is written in TypeScript and UnInbox 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, useSend or UnInbox?
Choose useSend if you want the larger community (4,775 stars) or its AGPL-3.0 licence terms. Choose UnInbox if its feature set, stack or Custom / other licence fits better. Both are self-hostable.