
TextKit.tech
utilkit
Text Length Tools
LiteralKit
Word Count Tools
JSONFormatter.org
Omni Calculator
Word Counter
WhiteKit.dev
JSONFormatter.org
Code Beautify JSON Validator
FreeFormatter
CyberChef
IT Tools
CodeBeautify
CodeSwissKnife
WhiteKit brings together 55 developer tools in one place: formatters (JSON, XML, SQL, YAML), converters, security utilities (JWT, hashing, encoding), network calculators, and text tools.
Everything runs 100% client-side. Your data never leaves your device, so you can safely paste API keys, tokens, and production payloads. No sign-up, no upload step, and it keeps working offline once loaded.
Each tool is built to handle real edge cases rather than just the happy path — the cron parser implements Quartz 6-field semantics correctly, the IPv6 ULA generator follows RFC 4193 Appendix A, and the subnet calculator handles /31 and /32 edge cases.
utilkit - Free Online Calculators, Converters, and Tools
JSONFormatter.org - Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
Text Length Tools - Paste text to count words, characters, reading time, speaking time, page count and publishing limits. Free browser-based text tools. No sign-up. Nothing stored.
Code Beautify JSON Validator - Code Beauty’s JSON Validator or JSON Lint is easy to use tool to copy, paste and validate JSON data.
LiteralKit - Create superscript and subscript text, translate symbol alphabets, style names, rewrite short text, and browse copyable characters with free LiteralKit tools.
FreeFormatter - Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.