OSS Discovery

UN
Global
PRODUCTIVITY
SELF-HOSTABLE
STABLE
FREEMIUM
DoubleZero

DOUBLEZERO

DoubleZero is an open-source email API and infrastructure solution empowering developers to own their email stack with zero fees. Simplify deployment with SST, harness AWS SES for scalable email delivery, and monitor campaigns effortlessly via a self-hosted dashboard—built for developers demanding control and cost efficiency.

GITHUB STARS
1.2k
+12% this month
FORKS
66
Active community
LAST PUSH
Apr 24, 2026
Stable
WATCHERS
3
Tracking updates
LICENSE
AGPL-3.0
Commercial use
DoubleZero is an open-source email API and infrastructure solution empowering developers to own their email stack with zero fees. Simplify deployment with SST, harness AWS SES for scalable email delivery, and monitor campaigns effortlessly via a self-hosted dashboard—built for developers demanding control and cost efficiency.

High Performance

Built for speed and minimal overhead.

Self-hostable

Docker, Kubernetes, or bare metal

Developer Native

Programmable via any language workflow

SUPPORTED LANGUAGES

Elixir
Elixir
HTML
HTML
Dockerfile
Dockerfile
JavaScript
JavaScript
TypeScript
TypeScript
Shell
Shell
CSS
CSS
Batchfile
Batchfile

VISUAL INTERFACE

Screenshot 1
Screenshot 2
Screenshot 3

The Quick Glance

Status
Dormant
Category
Productivity
Pricing
Freemium
Self-Hosted
Yes
Available on
Web

Relative Standing — across 1,284 tools

STARS1.2k
Top 71% globally
FORKS66
Top 80% in Open Source
ACTIVITYLow
Top 89% Activity
WATCHERS3
Top 89% Community