Data verified May 2026
ADYour product here. Reach security decision-makers.Launch a campaignvalidator.js Description
This library validates and sanitizes strings only. If you're not sure if your input is a string, coerce it using input + ''. Passing anything other than a string will result in an error. Installation and Usage Server-side usage Install the library with npm install validator No ES6 var validator = require('validator'); validator.isEmail('foo@bar.com'); //=> true ES6 import validator from 'validator'; Or, import only a subset of the library: import isEmail from 'validator/lib/isEmail'; Tree-shakeable ES imports import isEmail from 'validator/es/lib/isEmail'; Client-side usage The library can be loaded either as a standalone script, or through an AMD-compatible loader <script type="text/javascript" src="validator.min.js"></script> <script type="text/javascript"> validator.isEmail('foo@bar.com'); //=> true </script> The library can also be installed through bower $ bower install validator-js CDN <script src="https://unpkg.com/validator@latest/validator.min.js"></script> Validators Here is a list of the validators currently available. Validator Description contains(str, seed [, options]) check if the string contain
validator.js FAQ
Common questions about validator.js including features, pricing, alternatives, and user reviews.
validator.js is A library of string validators and sanitizers. It is a Application Security solution designed to help security teams with Validation.
validator.js is a free Application Security tool. This makes it accessible for organizations of all sizes, from startups to enterprises. Visit https://github.com/chriso/validator.js/ for download and installation instructions.
Popular alternatives to validator.js include:
1.Semgrep Secrets - Detects hardcoded secrets in code using semantic analysis & validation (Commercial)
2.Envalid - A Node.js library for validating environment variables and providing immutable access to configuration values in applications. (Free)
3.Flyingduck Code Security Intelligence - SAST tool that detects logical flaws and business logic vulnerabilities (Commercial)
4.DryRun Security AppSec Agents - AI-native SAST tool providing contextual code security analysis in pull requests (Commercial)
5.Snyk Code - AI-powered SAST tool that finds and auto-fixes code vulnerabilities in real-time (Commercial)
Compare all validator.js alternatives at https://cybersectools.com/alternatives/validatorjs
validator.js is for security teams and organizations that need Validation. It's particularly suitable for small to medium-sized teams looking for cost-effective solutions. Other Application Security tools can be found at https://cybersectools.com/categories/application-security
Have more questions? Browse our categories or search for specific tools.
