FluentValidation

FluentValidation

v12.1.1✓ VerifiedExcellentApache-2.0
Total Downloads 938.1M
Versions 126
Last Published Dec 3, 2025

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

by Jeremy Skinner

Health Score

85/100
Excellent
📥 Downloads 938.1M
🔢 Versions 126
📅 Last Release Dec 2025
🔗 Project Link
⚖️ License Apache-2.0
🛡️ Vulnerabilities

Version Adoption (top 10)

11.5.1
84.0M
11.11.0
82.5M
11.9.0
41.5M
12.0.0
37.1M
11.9.2
34.8M
8.6.2
31.1M
10.3.6
29.8M
11.10.0
27.6M
11.2.1
26.2M
12.1.1
25.3M

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Target Frameworks

net8.0
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