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#validator

Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.

67 records
Tagged “validator”Ranked by health index
Packagist
66Moderatehealth index
symfony/property-info
Extracts information about PHP class' properties using metadata of popular sources
PHP★ 2,222↓ 7.9M/moJul 21, 2026
MITJul 21, 2026 · metrics 1.13.0
Packagist
65Moderatehealth index
Seldaek/jsonlint
JSON Lint for PHP
PHP★ 1,325↓ 3.9M/moJul 22, 2026
MITJul 22, 2026 · metrics 1.13.0
Packagist
64Moderatehealth index
composer/spdx-licenses
Tools for working with the SPDX license list and validating licenses.
PHP★ 1,389↓ 3.3M/moJul 22, 2026
MITJul 22, 2026 · metrics 1.13.0
npm
63Moderatehealth index
webpack/schema-utils
Options Validation
JavaScript★ 250↓ 485M/moJul 22, 2026
MITJul 22, 2026 · metrics 1.13.0
npm
61Moderatehealth index
openapi-automatons/validator
Openapi schema validator
TypeScript · JavaScript★ 1↓ 4,187/moJul 15, 2026
MITJul 15, 2026 · metrics 1.13.0
npm
60Moderatehealth index
3axap4eHko/ascertain
0-Deps, simple, fast, for browser and node js object schema validator
TypeScript★ 0↓ 28.7K/moJul 15, 2026
MITJul 15, 2026 · metrics 1.13.0
PyPI
60Moderatehealth index
JoshData/python-email-validator
A robust email syntax and deliverability validation library for Python.
Python★ 1,419Jul 17, 2026
UnlicenseJul 17, 2026 · metrics 1.13.0
PyPI
60Moderatehealth index
thombashi/typepy
A Python library for variable type checker/validator/converter at a run time.
Python★ 17Jul 21, 2026
MITJul 21, 2026 · metrics 1.13.0
npm
59Moderatehealth index
MetaMask/superstruct
A simple and composable way to validate data in JavaScript (and TypeScript). Forked by MetaMask to fix ESM compatibility.
TypeScript★ 3↓ 3.9M/moJul 19, 2026
MITJul 19, 2026 · metrics 1.13.0
npm
58Moderatehealth index
YosefHayim/fresh-squeezy
CLI and TypeScript library for validating Lemon Squeezy billing setup in local checks and CI.
TypeScript★ 0↓ 2,205/moJul 14, 2026
MITJul 14, 2026 · metrics 1.13.0
PyPI
56Moderatehealth index
mike-oakley/openapi-pydantic
Modern, type-safe OpenAPI schemas in Python using Pydantic 1.8+ and 2.x
Python★ 121↓ 68.1M/moJul 17, 2026
Custom licenseJul 17, 2026 · metrics 1.13.0
npm
54Moderatehealth index
baumerdev/ibantools-germany
IBAN Validator and Generator for German Bank Accounts
TypeScript★ 21↓ 15.3K/moJul 15, 2026
Custom licenseJul 15, 2026 · metrics 1.13.0
npm
54Moderatehealth index
moostjs/atscript
Interfaces with Annotations
TypeScript★ 2↓ 12.9K/moJul 22, 2026
MITJul 22, 2026 · metrics 1.13.0
npm · NuGet
54Moderatehealth index
xarsh/ooxml-validator
Fast, zero-dependency OOXML validator for Node.js (.docx/.pptx/.xlsx etc.).
TypeScript · C#★ 5↓ 3,876/moJul 20, 2026
MITJul 20, 2026 · metrics 1.13.0
npm
52Moderatehealth index
metabase/representations
The Metabase Representation Format: a human-readable, version-controllable YAML tree for Metabase user content. Spec, JSON Schemas, and examples.
TypeScript · JavaScript★ 8↓ 3,180/moJul 17, 2026
Custom licenseJul 17, 2026 · metrics 1.13.0
npm
51Moderatehealth index
baumerdev/bankdata-germany
Data and BIC Validator for German Banks
TypeScript★ 13↓ 17.2K/moJul 15, 2026
Custom licenseJul 15, 2026 · metrics 1.13.0
npm
51Moderatehealth index
eslint-community/regexpp
The regular expression parser for ECMAScript.
TypeScript★ 30↓ 495M/moJul 22, 2026
MITJul 22, 2026 · metrics 1.13.0
Packagist
44At riskhealth index
mck89/peast
JavaScript parser written in PHP that generates AST from your code according to ECMAScript specification
PHP★ 192↓ 1.4M/moJul 21, 2026
BSD-3-ClauseJul 21, 2026 · metrics 1.13.0
PyPI
43At riskhealth index
willynilly/rfc3987-syntax
Helper functions to syntactically validate strings according to RFC 3987.
Python★ 1↓ 37.7M/moJul 17, 2026
MITJul 17, 2026 · metrics 1.13.0
PyPI
39At riskhealth index
naimetti/rfc3339-validator
A pure python RFC3339 validator
Python · Makefile★ 8Jul 17, 2026
MITJul 17, 2026 · metrics 1.13.0
npm
38At riskhealth index
NaturalIntelligence/fast-xml-parser
Validate XML, Parse XML and Build XML rapidly without C/C++ based libraries and no callback.
JavaScript★ 3,118↓ 330M/moJul 19, 2026
MITJul 19, 2026 · metrics 1.13.0
npm
38At riskhealth index
OjasKord/url-safety-validator-mcp
AI-powered URL safety validator MCP server. SAFE/SUSPICIOUS/DANGEROUS verdict for agents.
JavaScript★ 1↓ 2,659/moJul 19, 2026
MITJul 19, 2026 · metrics 1.13.0
npm
38At riskhealth index
soryy708/il-bank-account-validator
JavaScript module for Israeli Bank Account validation (sanity checking) if an account number is valid for a particular Israeli bank and branch.
JavaScript★ 10↓ 186/moJul 17, 2026
MITJul 17, 2026 · metrics 1.13.0
Packagist
36At riskhealth index
yiisoft/validator
Yii validator library
PHP★ 167↓ 18.8K/moJul 20, 2026
BSD-3-ClauseJul 20, 2026 · metrics 1.13.0
Packagist
34At riskhealth index
egulias/EmailValidator
PHP Email address validator
PHP★ 11.6K↓ 15.2M/moJul 21, 2026
MITJul 21, 2026 · metrics 1.13.0