vaex

The premium Open Source alternative to Databricks

🎯 Best for:Data scientists working with massive tabular datasets on standard hardware.

What is vaex?

Replaces memory-constrained Pandas workflows with an out-of-core DataFrame system. Utilizes memory mapping and lazy evaluation to process datasets larger than RAM at high speeds.

Tech Stack
PythonAI, ML & Data

Why vaex?

  • Zero-copy memory mapping
  • Lazy evaluation
  • Built-in visualization for big data

Limitations

  • Limited API vs Pandas
  • Requires specific file formats
  • Smaller community ecosystem
3/5/2026
Last Update
603
Forks
550
Issues
MIT
License
Financial Leak Detected

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

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