Jitsu vs Postal
Is it time to switch? We break down the differences so you can stop bleeding money.
Choose Postal.
If you want to own your data, save money, and avoid vendor lock-in, Postal is more popular among developers.
What Actually Matters
No fluff — just the differences that affect your decision
Both are open source under MIT. No lock-in on either side — pick based on fit, not fear.
Both can run on your own metal with Docker. Full data ownership, no cloud dependency. We have deploy guides for each.
Postal has the bigger crowd: 16.9k stars vs 5.1k. More contributors, more integrations, more momentum.
Jitsu is built in TypeScript, Postal in Ruby. Matters if you want to contribute, extend, or debug internals.
Try both — most offer free tiers. The right pick depends on your stack size, team, and tolerance for DevOps.
Jitsu
High-performance data collection platform and open-source Segment alternative.
Why Choose Jitsu
- ✓Unlimited data volume
- ✓Real-time data streaming
Drawbacks
- ×Fewer destinations than Segment
Postal
A fully featured open source mail delivery platform for incoming & outgoing e-mail.
Why Choose Postal
- ✓High-performance mail delivery server built for throughput
- ✓Detailed delivery tracking with click and open analytics
- ✓IP pool management and DKIM/SPF configuration
Drawbacks
- ×Extremely complex to manage delivery (IP warm-up)
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