Package

just-validate

Modern, simple, lightweight (~5kb gzip) form validation library written in Typescript, with no dependencies (no JQuery!). Support a wide range of predefined rules, async, files, dates validation, custom error messages and styles, localization. Support wri

v4.3.0, 13 Nov 2023MITESM + CommonJSTypes: BundledForms

$ npm install just-validate

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 9.3k; +2% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 0; Direct, from package.json
Last release: 2 years ago; v4.3.0
GitHub stars: 591; 91 forks
Open issues / PRs: 37 / 20
Contributors: -
Commits, last 52 weeks: 0

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

9,284 downloads last week, 37,956 in the last month. The 12-month change of +2% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: -
Latest version: 4.3.0, 13 Nov 20232 years ago
First published: -
Last push to GitHub: 3 Sept 2025386 days before the snapshot
Repository archived: No
Open issues: 37
Open pull requests: 20
Commits, last 52 weeks: 0
Dependents on npm: 5

Major versions

Recent releases

Compatibility

Module format: ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types: Bundled
Node.js engine range: Not declared
Runtimes: -
Unpacked size (npm): 105 kB
Dependencies (0): None

Install

npm install just-validate

CDN

jsDelivr: 2.9m requests in 30 days

jsDelivrhttps://cdn.jsdelivr.net/npm/just-validate@4.3.0/
unpkghttps://unpkg.com/just-validate@4.3.0/
esm.shhttps://esm.sh/just-validate@4.3.0

Alternatives

Package	Weekly downloads	Gzip	Last release	Module	Comparison
formsy-react A form input builder and validator for React	14.4k	-	1 month ago	ESM + CommonJS	-
form-backend-validation An easy way to validate forms using back end logic	9.2k	-	6 years ago	CommonJS	-
@braid/vue-formulate The easiest way to build forms in Vue.	5.8k	-	4 years ago	ESM + CommonJS	-
fluentvalidation-ts A TypeScript-first library for building strongly-typed validation rules	5.9k	-	1 year ago	ESM + CommonJS	-
@conform-to/dom A set of opinionated helpers built on top of the Constraint Validation API	183.6k	-	1 month ago	ESM + CommonJS	-
@conform-to/zod Conform helpers for integrating with Zod	177.9k	-	1 month ago	ESM + CommonJS	-
@conform-to/valibot Conform helpers for integrating with Valibot	10.7k	-	1 month ago	ESM + CommonJS	-
@felte/core Core utility for Felte's integration with front-end frameworks	24.5k	-	1 year ago	ESM + CommonJS	-

Sources: npm registry, npm downloads API, GitHub API, jsDelivr. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): downloads_week 9284 < 10000.