atmo

The premium Open Source alternative to Mockaroo

🎯 Best for:Developers needing quick, deployable mock backends for demos and prototypes.
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What is atmo?

Replaces static mock data files with dynamic, deployable API endpoints. Provides a server-side environment for generating mock data that can be instantly deployed to cloud providers.

Tech Stack
TypeScriptBackend & Auth

Why atmo?

  • Instant remote deployment
  • Dynamic data generation
  • Simple JSON configuration

Limitations

  • Limited to simple CRUD mocks
  • Requires Node.js environment
  • Smaller community support
2/13/2026
Last Update
38
Forks
5
Issues
Unknown
License
Financial Leak Detected

Stop the "SaaS Tax"

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

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

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