
NanoUtil
DevPicker
Appkit
Best Programming Toolkit
100+ Developer Tools
CodifyFormatter.org
DeveloperToolsKit
100+ free online tools for developers - code formatters, converters, validators, and more. Work instantly in your browser.

JSONFormatter.org
JSON Formatter & Validator
JSON Editor Online
FreeFormatter
Code Beautify JSON Validator
CodeBeautify
DevToys
JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.

Which is more popular?
Based on our record, JSONLint seems to be more popular. It has been mentioned 138 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | devutilx.com | jsonlint.com |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DevUtilX and JSONLint.
DevUtilX's answer
All-in-One Toolkit – Over 100+ tools in a single place (no more 20 bookmarks).
Consistent UI/UX – Same design language, editors, copy/download buttons → smooth switching.
Wide Variety – From JSON formatters → CSS generators → QR/barcode makers → validators → image compressors.
Dev-Friendly by Design – Built with features developers love: syntax highlighting, toasts, live previews.
DevUtilX's answer
Competitors often give you one tool per site. DevUtilX brings 100+ tools under one roof — less tab-hopping, more productivity.
DevUtilX has a clean, consistent UI with instant results.
Built for developers by developers: syntax highlighting, live previews, download/copy buttons, dark mode — the little details that matter.
DevUtilX's answer
DevUtilX's answer
Every developer knows the struggle: You’re in the middle of coding, and suddenly you need a quick JSON formatter, a CSS gradient generator, or a way to validate an API response. You Google it, land on a cluttered site, use the tool once, and then repeat the cycle tomorrow with another tool.
That frustration was the seed for DevUtilX.
The idea was simple: what if all these everyday developer tools lived in one clean, reliable place? A place that didn’t force sign-ups, didn’t send your code to unknown servers, and didn’t make you click through pop-ups just to copy your output.
So DevUtilX was born — a Swiss Army knife for developers. Instead of 20 scattered bookmarks, you get 100+ free tools under one roof: formatters, validators, converters, generators, CSS helpers, image utilities, and more. Each tool works instantly in your browser, powered client-side for speed, privacy, and simplicity.
What started as a small personal project has now grown into a platform used by developers, students, and freelancers around the world. And the journey isn’t done — with community feedback, new tools keep getting added to make DevUtilX even more powerful.
Share your experience with using DevUtilX and JSONLint. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DevUtilX since Oct 2025.
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 / 8 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 / 12 months ago
Online Tools: Websites like JSONLint or jsonformatter.org let you paste JSON and get a minified version instantly. - Source: dev.to / about 1 year ago
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