FICHA · MANJARO

python-fastjsonschema

Fast JSON schema validator for Python

  • Library
  • Dev
  • Dependency only
official+codex · reviewed · May 28, 2026 description in en

Description

Validate JSON data against JSON Schema rules quickly from Python applications. It helps APIs, configuration loaders, and data pipelines reject malformed structured data before it is used.

This is a validation library, not a complete security layer. Schemas should be reviewed carefully, because missing constraints can still allow unsafe or incorrect values through.

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