10 Best JavaScript Data Validation Libraries
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List hand-picked by Openbase Experts
ajv
The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)
License: MIT
TypeScript Definitions: Built-In
User Rating
4.3/ 5
10Top Feedback
2Great Documentation
2Easy to Use
1Performant
GitHub Stars
10K
Weekly Downloads
62M
Last Commit
1mo ago
joi
The most powerful data validation library for JS
License: BSD-3-Clause
TypeScript Definitions: Built-In
User Rating
4.5/ 5
49Top Feedback
18Great Documentation
18Easy to Use
12Performant
GitHub Stars
18K
Weekly Downloads
5M
Last Commit
2mos ago
express-validator
An express.js middleware for validator.js.
License: MIT
TypeScript Definitions: Built-In
User Rating
4.7/ 5
17Top Feedback
12Easy to Use
11Great Documentation
9Performant
GitHub Stars
5K
Weekly Downloads
378K
Last Commit
1mo ago
node-input-validator
Validation library for node.js
License: ISC
TypeScript Definitions: DefinitelyTyped
User Rating
4.9/ 5
18Top Feedback
10Great Documentation
9Easy to Use
5Performant
GitHub Stars
67
Weekly Downloads
5K
Last Commit
3mos ago
validatorjs
A data validation library in JavaScript for the browser and Node.js, inspired by Laravel's Validator.
License: MIT
TypeScript Definitions: DefinitelyTyped
User Rating
5.0/ 5
3Top Feedback
1Great Documentation
1Easy to Use
1Highly Customizable
GitHub Stars
2K
Weekly Downloads
48K
Last Commit
1yr ago
valivar
Javascript/Typescript schema-based validation and sanitation
License: MIT
TypeScript Definitions: DefinitelyTyped
User Rating
5.0/ 5
1Top Feedback
N/A
GitHub Stars
4
Weekly Downloads
6
Last Commit
4mos ago
swagger-parser
Swagger 2.0 and OpenAPI 3.0 parser/validator
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
820
Weekly Downloads
640K
Last Commit
3mos ago
decoders
Elegant validation library for type-safe input data (for TypeScript and Flow)
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
296
Weekly Downloads
14K
Last Commit
1mo ago
openapi-validator-middleware
Input validation using Swagger (Open API) and ajv
License: Apache-2.0
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
124
Weekly Downloads
126K
Last Commit
2mos ago
json-rules-engine
A rules engine expressed in JSON
License: ISC
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
1K
Weekly Downloads
45K
Last Commit
8mos ago
express-json-validator-middleware
Express middleware for validating requests against JSON schema
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
124
Weekly Downloads
9K
Last Commit
5mos ago
schema-typed
Schema for data modeling & validation
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
166
Weekly Downloads
23K
Last Commit
3mos ago
celebrate
A joi validation middleware for Express.
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
1K
Weekly Downloads
52K
Last Commit
6mos ago
express-openapi-validate
Express middleware to validate requests based on an OpenAPI 3 document
License: Apache-2.0
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
70
Weekly Downloads
9K
Last Commit
9mos ago
express-validation
express-validation is an express middleware that validates a request and returns a response with errors; if any of the configured validation rules fail.
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
353
Weekly Downloads
36K
Last Commit
1yr ago
openapi-enforcer-middleware
An express middleware that makes it easy to write web services that follow an Open API specification.
License: Apache-2.0
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
16
Weekly Downloads
2K
Last Commit
10mos ago
zod-express-middleware
Express middleware to validate requests using zod schema's.
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
5
Weekly Downloads
197
Last Commit
6mos ago
isvalid
Asynchronous JavaScript validation library for Node.js and browsers.
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
47
Weekly Downloads
397
Last Commit
2mos ago
express-dry
Express.js Body, Query and Params validator based on https://github.com/uditkarode/drytype
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
11
Weekly Downloads
11
Last Commit
4mos ago
express-oas-validator
Express OpenAPI Specification (OAS) middleware validator
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
5
Weekly Downloads
86
Last Commit
3mos ago
openapi-data-validator
OpenAPI Request Validation for API for any framework
License: Apache-2.0
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
3
Weekly Downloads
376
Last Commit
8mos ago
expressjs-field-validator
Plugin for validating JSON request, middleware for expressjs
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
47
Last Commit
1mo ago
uv
Ultrafast UTF-8 data validation
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
80
Weekly Downloads
10K
Last Commit
1yr ago
evalidate
An easy to use Object Schema Validator
License: ISC
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
1
Weekly Downloads
50
Last Commit
2mos ago
contracts
Validation library to define and validate JSON Schemas for functions and express handlers. Supports filters.
License: Unknown
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
6K
Last Commit
N/A
skema
🛰 Skema provides a handy & composable way to validate / transform / purify the input data.
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
360
Weekly Downloads
6K
Last Commit
2yrs ago
openapi-model-validator
OpenAPI Request Validation for API for any framework
License: Apache-2.0
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
3
Weekly Downloads
62
Last Commit
8mos ago
ducktype
Flexible data validation using a ducktype interface. For JavaScript and Node.js.
License: Apache-2.0
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
83
Weekly Downloads
4K
Last Commit
1yr ago
csrf-validator
CSRF Validator for Node.js
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
18
Last Commit
4mos ago
valid.js
📝 A library for data validation.
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
608
Weekly Downloads
545
Last Commit
4mos ago
bevor
Bevor is payloads / HTTP request validator
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
3
Weekly Downloads
5
Last Commit
3mos ago
validata-express
Type safe data validation and sanitization for Express
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
14
Last Commit
3mos ago
obey
🔨 Asynchronous JavaScript Data Modelling and Validation
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
197
Weekly Downloads
1K
Last Commit
1yr ago
node-validator
A simple, extensible object property validator for node.js. Supports express.js.
License: Unknown
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
963
Last Commit
N/A
fastest-express-validator
fastest-express-validator
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
2
Weekly Downloads
36
Last Commit
8mos ago
mevn-validator
simple validator for express js
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
4
Weekly Downloads
39
Last Commit
8mos ago
express-sns-validator
ExpressJS middleware for verifying Amazon SNS notifications using sns-validator
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
39
Last Commit
7mos ago
@taraj/express-validator
Lightweight & powerful express validator designed for Typescript.
License: MIT
TypeScript Definitions: Not Found
User RatingN/A
Top Feedback
N/A
GitHub Stars
1
Weekly Downloads
18
Last Commit
6mos ago
express-fileupload-validator
Validator for express-fileupload package
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
1
Weekly Downloads
2
Last Commit
7mos ago
express-validator-middleware
form validator middleware for express.js
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
1
Weekly Downloads
7
Last Commit
5mos ago
aev
Another Express Validator
License: ISC
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
2
Weekly Downloads
16
Last Commit
9mos ago
@nanots/guard
Smallest data validation library ever made
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
1
Weekly Downloads
0
Last Commit
6mos ago
express-tguard
Minimalistic schema validation express middleware for TypeScript
License: MIT
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
3
Last Commit
5mos ago
typology
A data validation library for Node.js and browser
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
43
Weekly Downloads
192
Last Commit
2yrs ago
web-validate
Validate API requests and responses
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
4
Last Commit
9mos ago
datalize
Parameter, query, form data validation and filtering for NodeJS.
License: Unknown
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
55
Weekly Downloads
56
Last Commit
3yrs ago
@wastimy/joi-middleware
An express middleware function that wraps the joi validation library. This allows you to use this middleware on route to ensure that all received inputs are correct before any handler function
License: ISC
TypeScript Definitions: Built-In
User RatingN/A
Top Feedback
N/A
GitHub Stars
1
Weekly Downloads
18
Last Commit
7mos ago
accurized
a fluent interface on top of the validator node module
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
32
Last Commit
5yrs ago
express-transformer
An express transformation, validation library
License: MIT
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
30
Last Commit
1yr ago
galaxy-validator
a galaxy validator in node js
License: ISC
TypeScript Definitions: DefinitelyTyped
User RatingN/A
Top Feedback
N/A
GitHub Stars
N/A
Weekly Downloads
16
Last Commit
1yr ago