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Data Modeling & Validation Libraries

Libraries that provide tools for parsing, validating, and transforming data using language-native features such as type hints.

The Linux Foundation

by The Linux Foundation

・

125 projects ・ Updated 14 Mar 2025

Project
Contributors
Organizations
Software value
React
19,143
4,664
$27M
The Symfony PHP Framework
17,053
3,395
$67M
Mongoose
11,377
2,892
$5.1M
ipython
8,716
1,787
$72M
React Hook Form
8,009
1,573
$2.1M
Pydantic
7,751
2,058
$4.5M
Formik
6,523
1,565
$685K
Zod
6,201
1,903
$2.4M
vee-validate
4,319
769
$1.1M
dbt Core
4,086
636
$9.2M
jackson-databind
4,059
942
$9M
Yup
3,294
841
$356K
react-jsonschema-form
2,946
652
$4M
validator.js
2,789
671
$743K
Joi
2,587
807
$1.5M
PydanticAI
2,551
485
$19M
Ajv
2,439
774
$1.4M
class-validator
2,057
544
$392K
FluentValidation
1,963
276
$638K
SQLModel
1,849
528
$1.4M
Go Package Validator
1,650
467
$2.1M
Vuelidate
1,647
322
$461K
TanStack Form
1,574
416
$2.2M
Formily
1,554
175
$5.6M
Django Filter
1,476
452
$362K
Marshmallow
1,465
428
$551K
Express Validator
1,429
374
$1.4M
Class Transformer
1,424
371
$231K
NJsonSchema
1,367
231
$2.2M
JSON Editor
1,328
266
$800K
Freezed
1,243
264
$588K
Pandera
1,232
258
$2.1M
Serde JSON
1,172
486
$564K
datamodel-code-generator
1,061
317
$11M
attrs
985
363
$659K
django-taggit
908
333
$898K
Form.io
886
88
$3.1M
JSON Schema Validator
874
148
$5.3M
WTForms
870
263
$266K
TypeSpec
869
192
$43M
Laravel Data
850
177
$1.3M
TypeBox
820
308
$5.4M
Mantle
766
199
$161K
JSON Schema for PHP
659
221
$472K
async-validator
602
114
$124K
TypeScript JSON Schema
590
196
$282K
AutoMapper
578
105
$1.9M
GoValidator
574
197
$254K
prop-types
561
209
$149K
Typia
544
178
$3.7M
Phony
535
139
$501K
TypeScript JSON Schema Generator
532
189
$1.4M
Dataclasses JSON
522
164
$131K
Valibot
514
152
$7.8M
Conform
506
130
$2.2M
JSON Schema $Ref Parser
506
188
$771K
CSLA .NET
505
23
$10M
msgspec
475
179
$1.6M
Ruby JSON Schema Validator
471
202
$271K
cattrs
452
182
$549K
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