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

Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
KDiff3 is a file and directory diff and merge tool which compares and merges two or three text...

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | devutilx.com | github.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
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110. Tools and Unitilities - KDiff3 tool to compare files and folders
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DevUtilX and kdiff3.
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.
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KDiff3 is a cross-platform diff and merge tool and works on Linux, macOS and Windows. It is a file and folder merge tool used to compare and merge two to three files and directoires.
KDiff3 is a merge program that works with Unix, Windows as well as Mac OS X platforms. It can compare or merge two or three text input files and directories and you choose to see the differences line by line or...
KDiff3 helps you merge files through a detailed process of spotting differences and then merging. Two or three text input files or directories can be compared or merged with the differences between every single line...
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