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orjson

v3.11.9PyPI· Python

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

The verdict
Safe default. Widely trusted across the ecosystem, actively maintained. Catch: copyleft license (MPL-2.0 AND (Apache-2.0 OR MIT)) — review compatibility with your project.
Catch: copyleft license (MPL-2.0 AND (Apache-2.0 OR MIT)) — review compatibility with your project.
Live from the PyPI registry · derived rules, not AI
How it scores
MaintenanceHealthy
PopularityTop 1%
SecurityClean
LicenseCopyleft
DepsZero deps
Maintenance
Last published this month.
Popularity
42M downloads / week
Security
No known advisories for this version (OSV).
License
MPL-2.0 AND (Apache-2.0 OR MIT)
Dependencies
No runtime dependencies
Same concept · JSON parsing

For serialising and parsing JSON, beyond the stdlib.

Browse all
PyPIAlternatives in PyPI
ujson
Cross-language equivalents
crates.io· Rust
serde_json
RubyGems· Ruby
oj
NuGet· .NET
Newtonsoft.Json
Related-package mappings are hand-curated. See alternatives in detail →
Recent releases
  • 3.11.9this month
  • 3.11.82 months ago
  • 3.11.74 months ago
  • 3.11.64 months ago
  • 3.11.56 months ago
  • 3.11.47 months ago
  • 3.11.39 months ago
  • 3.11.210 months ago