Is orjson safe to use?

orjson has no known vulnerabilities on the latest version (3.11.9). DepScope rates its health at 65/100 (moderate risk).

What is the latest version of orjson?

The latest version of orjson is 3.11.9, released 2026-05-06.

Does orjson have known vulnerabilities?

No known vulnerabilities on the latest version of orjson.

Is orjson deprecated?

No, orjson is actively maintained. Latest release: 3.11.9 (2026-05-06).

What are alternatives to orjson?

Popular alternatives to orjson in PyPI include: boto3, packaging, certifi, urllib3, requests.

What license does orjson use?

orjson is licensed under MPL-2.0 AND (Apache-2.0 OR MIT).

orjson

pypiv3.11.9

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

License MPL-2.0 AND (Apache-2.0 OR MIT)permissive149 versions0 deps

/ 100

Health

use with caution

[email protected] low health (65/100) — consider alternatives

Moderate health score (65/100) — verify manually

Health breakdown0 – 100

25/25

maintenance

0/20

popularity

25/25

security

15/15

maturity

0/15

community

Vulnerabilities

none known

Quality signals

OSS Criticality

0.50high

Download trend

stable(+9%)

Publish security

API token

Health History

Dependency Tree

License Audit

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/pypi/orjson

orjson

pypiv3.11.9

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

License MPL-2.0 AND (Apache-2.0 OR MIT)permissive149 versions0 deps

/ 100

Health

use with caution

[email protected] low health (65/100) — consider alternatives

Moderate health score (65/100) — verify manually

Health breakdown0 – 100

25/25

maintenance

0/20

popularity

25/25

security

15/15

maturity

0/15

community

Vulnerabilities

none known

Quality signals

OSS Criticality

0.50high

Download trend

stable(+9%)

Publish security

API token

Health History

Dependency Tree

License Audit

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/pypi/orjson