head to head · open source
useSend vs DoubleZero
useSend has 4,775 GitHub stars, 447 forks, 37 open issues and last shipped 3 days ago. DoubleZero has 1,246 stars, 65 forks, 9 open issues and last shipped 2.0 years ago. useSend leads on adoption by 283% (4,775 vs 1,246 stars). useSend is written in TypeScript under AGPL-3.0; DoubleZero is written in Elixir under AGPL-3.0. useSend has attracted 9% as many forks as stars, DoubleZero 5%. useSend 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
| useSend | DoubleZero | |
|---|---|---|
| GitHub stars | ★ 4.8K | ★ 1.2K |
| License | AGPL-3.0 | AGPL-3.0 |
| Written in | TypeScript | Elixir |
| Last push | 2026-10-31 | 2024-10-22 |
| Forks | ⑂ 447 | ⑂ 65 |
| 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 DoubleZero if
- You want the DoubleZero feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Elixir
- You evaluated both and DoubleZero 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 DoubleZero
00 is a self hostable SES dashboard for sending and monitoring emails with AWS. SES is an incredibly affordable way to build an email heavy application. However monitoring the emails is a bit of a nightmare, and often requires custom infrastructure. Even setting up the SES SNS SQS pipeline is a headache for developers unfamiliar with AWS. And when that is done your still left with hooking in or building custom some dashboard for viewing bounces and all the vital information you care about. 00 provides an SST configuration step to set up the SES SNS SQS pipeline, so you can just run a command and let SST do the…
read the full DoubleZero overview →
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Frequently asked questions
Is useSend or DoubleZero more popular?
useSend has 4,775 GitHub stars and DoubleZero has 1,246. useSend has the larger community by that measure.
Are useSend and DoubleZero free?
Both are open source. useSend is licensed under AGPL-3.0 and DoubleZero under AGPL-3.0. Neither carries a licence fee.
What is the difference between useSend and DoubleZero?
useSend is written in TypeScript and DoubleZero in Elixir. 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 DoubleZero?
Choose useSend if you want the larger community (4,775 stars) or its AGPL-3.0 licence terms. Choose DoubleZero if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.