JSONLint
JSONFormatter.org
JSON Formatter & Validator
JSON Editor Online
FreeFormatter
DevToys
Code Beautify JSON Validator
ExtendsClass JSON Formatter
AppErgo
10015.io
FreeToolkit
FreeToolPoint
PotatoTools
ToolMasterApp.in
ToolsOnline.run
AppErgo is an independent project covering text, codes and puzzles, conversion, dates and time, audio, games, random generators and everyday utilities. Each tool is designed for quick use on desktop and mobile, with a clear interface and a responsive layout.
Available in English and French, AppErgo is built primarily with static HTML, CSS and vanilla JavaScript. Its name combines App with Ergo, reflecting a focus on practical applications, ergonomics and ease of use.
JSONLint AppErgoAppErgo's answer:
AppErgo brings together more than 200 browser tools in one fast, lightweight and privacy-friendly toolbox. Every tool is 100% free, works without an account, runs directly in the browser, avoids intrusive advertising, and is fully responsive on both desktop and mobile.
AppErgo's answer:
AppErgo was created in France in 2026 as an independent project developed by a solo creator. Its name combines โAppโ, for applications and online tools, with โErgoโ, reflecting a focus on ergonomics, simplicity and ease of use. The project started with a small collection of practical tools and gradually grew into a toolbox of more than 200 tools covering text, codes and puzzles, dates, audio, games and everyday tasks.
AppErgo's answer:
AppErgo is primarily built with static HTML, CSS and vanilla JavaScript. Its pages are generated through a custom administration system based on PHP and MySQL, while the public tools rely on standard browser technologies such as SVG, Canvas and the Web Audio API. All processing takes place directly in the browser, without external APIs or remote processing services.
AppErgo's answer:
AppErgo is designed for students, teachers, developers, creators, office workers, puzzle enthusiasts and everyday users who need a practical online tool without creating an account or navigating a complicated service. Its wide range of tools supports both occasional tasks and regular use on desktop or mobile.
AppErgo's answer:
AppErgo is built for people who want to open a tool, complete a task and move on. It combines more than 200 fast, lightweight and responsive tools with clear interfaces and local browser processing. There is no signup, no intrusive advertising and no unnecessary upload of personal data. The tools are available directly on desktop and mobile, without installing anything.
AppErgo's answer:
AppErgo is primarily designed for individual users rather than named enterprise customers. Its audience includes students, teachers, developers, creators, puzzle enthusiasts and anyone looking for a quick browser-based tool.
Based on our record, JSONLint seems to be more popular. It has been mentiond 138 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I've been maintaining jsonlint.com for years. It's a simple JSON validator that I enjoy hacking on every now and then. Nothing fancy, just a useful tool that developers seem to appreciate. - Source: dev.to / 6 months ago
Note: It is crucial that your batchinput.jsonl file is correctly formatted. You can use online JSON formatters and validators like jsonformatter.org or jsonlint.com to verify its integrity before proceeding. - Source: dev.to / 10 months ago
Online Tools: Websites like JSONLint or jsonformatter.org let you paste JSON and get a minified version instantly. - Source: dev.to / 11 months ago
Or paste your JSON into JSONLint. Both tools immediately identify stray control characters. - Source: dev.to / over 1 year ago
Our old pal VS Code will probably throw up some wiggly red lines if we do it wrong, so look out for them. If you're struggling to see why it doesn't work, try an online JSON Validator and see if it pushes you in the right direction. - Source: dev.to / over 1 year ago
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
10015.io - 10015.io is an all-in-one toolbox offering many tools from various categories.
JSON Formatter & Validator - The JSON Formatter was created to help with debugging.
FreeToolkit - 100+ free online tools: JSON formatter, Base64 encoder, UUID generator, regex tester, age calculator, color picker, unit converter & more. Fast, private โ runs entirely in your browser. No login.
JSON Editor Online - View, edit and format JSON online
FreeToolPoint - 45+ free browser-based tools: PDF tools, resume builder, OCR, YouTube thumbnails, favicon generator, calculators & more. No signup, no uploads.
