
Best Programming Toolkit
tooltool.net
FreeFormatter
JSONLint
All Over Tools
JSONFormatter.org
JSON Formatter & Validator
Online JSON Tools
CodeUtil.dev
DevToys
CyberChef
CodifyFormatter.org
DevToo.dev
CodeTray.dev
DuskTools.app
Text-Utils JSON Formatter
CodeUtil.dev is a collection of 20+ browser-based developer tools. JSON formatter & validator, regex tester, cron expression generator, Base64 encoder/decoder, JWT debugger, URL parser, hash generator, and more. Everything runs client-side — no data leaves your browser. No sign-up needed, just open and use.
CodeUtil.dev's answer:
CodeUtil.dev runs entirely in the browser — all processing happens on your device, so your data never touches a server. It bundles 20+ tools (JSON, regex, Base64, JWT, cron, hashing, and more) under one roof with zero sign-up. Just open the page and start working.
tooltool.net - Online toolkit designed for software engineers and developers, including JSON parsing, Base64 encoding/decoding, MD5 encryption, URL encoding/decoding, timestamp conversion, UUID generation and other practical tools.
DevToys - A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
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.
CyberChef - The Cyber Swiss Army Knife
JSONLint - JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
CodifyFormatter.org - Free Online Tools like Beautify Code, Minifiy Code, Code Converter, Code Formatter, Viewer, Editor for Developer: JSON, XML, HTML, CSS, JavaScript, Java, SQL, CSV and Excel and String Tools