head to head · open source
Ntfy vs Sessy
Ntfy has 35,241 GitHub stars, 1,692 forks, 393 open issues and last shipped yesterday. Sessy has 944 stars, 44 forks, 7 open issues and last shipped 4 days ago. Ntfy leads on adoption by 3,633% (35,241 vs 944 stars). Ntfy is written in Go under Apache-2.0; Sessy is written in Ruby under a custom or non-standard licence. Ntfy has attracted 5% as many forks as stars, Sessy 5%. Ntfy 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
| Ntfy | Sessy | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 944 |
| License | Apache-2.0 | Custom / other |
| Written in | Go | Ruby |
| Last push | 2026-11-02 | 2026-10-30 |
| Forks | ⑂ 1.7K | ⑂ 44 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Ntfy if
- You weight community size — 35K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick Sessy if
- You want the Sessy feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Ruby
- You evaluated both and Sessy fits your workflow better
About Ntfy
Special thanks to: Warp, built for coding with multiple AI agents. Available for MacOS, Linux, & Windows ntfy.sh Send push notifications to your phone or desktop via PUT/POST ntfy (pronounced " notify ") is a simple HTTP based pub sub notification service. With ntfy, you can send notifications to your phone or desktop via scripts from any computer, without having to sign up or pay any fees . If you'd like to run your own instance of the service, you can easily do so since ntfy is open source. You can access the free version of ntfy at ntfy.sh . There is also an open source Android app available on Google Play or…
About Sessy
Sessy Open source email observability for AWS SES by Marc Köhlbrugge. What is Sessy? Amazon SES is a fantastic email service: cost effective, reliable, and great deliverability. But it's frustratingly difficult to see what's actually happening with your emails. That's why many people turn to overpriced email services that are often just glorified SES wrappers with a nice UI. You end up paying a lot for something you could do yourself. Sessy is the open source alternative. Use raw SES and still get a beautiful interface to see what happens after you hit send: deliveries, bounces, complaints, opens, clicks, and…
read the full Sessy overview →
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Frequently asked questions
Is Ntfy or Sessy more popular?
Ntfy has 35,241 GitHub stars and Sessy has 944. Ntfy has the larger community by that measure.
Are Ntfy and Sessy free?
Both are open source. Ntfy is licensed under Apache-2.0, and Sessy has no licence declared in this registry. Both are free to self-host.
What is the difference between Ntfy and Sessy?
Ntfy is written in Go and Sessy in Ruby. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Ntfy or Sessy?
Choose Ntfy if you want the larger community (35,241 stars) or its Apache-2.0 licence terms. Choose Sessy if its feature set, stack or Custom / other licence fits better. Both are self-hostable.