periodum

The premium Open Source alternative to Ptable

🎯 Best for:Educational institutions seeking a self-hosted chemistry reference
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OSL-3.0License

What is periodum?

Replaces static textbook charts and proprietary chemical reference apps. Features a web-based interface for exploring atomic properties, isotopes, and electron configurations.

Tech Stack
VueChemistry & Materials

Why periodum?

  • Responsive web design
  • Detailed element metadata
  • Interactive filtering

Limitations

  • Web-only interface
  • Limited advanced thermodynamics
  • Requires hosting for private use
1/28/2026
Last Update
65
Forks
30
Issues
OSL-3.0
License
Financial Leak Detected

Stop the "SaaS Tax"

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

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