Top 3 alternative sites to devutils.app
JSON Formatter-JSON Viewer-JSON Validator
The json formatter,json viewer,json beautifier,json editor,json pretty print,jsonlint,pretty json,json reader Can help you deal with the JSON format better, you can directly input JSON or select local files for operation.
W3 Tool Hub
W3ToolHub.com - Free Online Tools For Developers
Author: Vimalraj Chinnaiyan
DevGear - Offline Developer Tools - Diff Compare text, Format Json and Xml - Encode Decode Base64 & Urls - Dev Gear
Best offline developer tools like Diff tool for text comparison, JWT tokens, formatting, validation and encoding of JSON, XML, Base64 etc.