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jsonschema

v0.45.0 Growing

JSON schema validaton library

MIT Edition 2021 MSRV 1.83.0
Web programming #validation#jsonschema

Quick Verdict

  • โœ“Actively maintained (updated 19d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (6.4K crates depend on it)
  • !Heavy dependency tree (34 direct deps)
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
58.4M
Dependents
6.4K
Releases
92
Size
231KB

Deep Insights

๐Ÿ“Š
Stable downloads

5.1M downloads in the last 30 days (169.5K/day). Volume is roughly flat compared to the previous period.

๐Ÿ”—
Widely adopted

6.4K crates depend on jsonschema. Strong ecosystem adoption means battle-tested code and long-term stability.

โš ๏ธ
Single maintainer risk

jsonschema has only 1 owner despite 6.4K dependents. This is a bus-factor concern โ€” consider the implications for long-term support.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 5+ years old, jsonschema hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“ฆ
Heavy dependency tree

34 direct dependencies. Consider the impact on compile times and supply chain complexity.

๐ŸŒŸ
Used by top crates

Notable dependents include serde_with, schemars, primitive-types, async-nats, c2pa. When high-quality crates choose jsonschema, it's a strong quality signal.

Health Breakdown

Maintenance 18/25

Recency, release consistency, active ratio

Quality 12/25

Yanked ratio, deps, size, maturity, features

Community 13/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
159K/day avg+19%
0100K200K300K400K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.17.1
46%
v0.18.3
28%
v0.30.0
21%
v0.33.0
2%
v0.29.1
2%

Release Timeline

92 releases1 yankedsince 2020
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2020
8
2021
19
2022
6
2023
2
2024
26
2025
19
2026
12
Less
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Yanked

Feature Flags

default =["resolve-http", "resolve-file", "tls-aws-lc-rs"]

tls-ringresolve-file*resolve-http*resolve-asynctls-aws-lc-rs*arbitrary-precision

README

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Maintainers

Dependencies
34
direct dependencies
Dependents
6.4K
crates depend on jsonschema

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