altair

The premium Open Source alternative to Postman

🎯 Best for:Developers building or consuming GraphQL APIs.

What is altair?

A lightweight API client replacing Postman specifically for GraphQL development and testing. It provides advanced features like schema documentation viewing, query debugging, and subscription support without mandatory cloud account synchronization.

Tech Stack
TypeScriptTesting & QA

Why altair?

  • Lightweight and fast
  • Multi-platform support
  • Visual schema docs

Limitations

  • Limited REST support
  • UI less polished than Postman
  • Fewer team sync features
1/13/2026
Last Update
384
Forks
52
Issues
MIT
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to altair instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Postman)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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