DevUtilX
NanoUtil
DevPicker
Appkit
Best Programming Toolkit
100+ Developer Tools
CodifyFormatter.org
DeveloperToolsKit
Tools-Online.app
Best Programming Toolkit
Converter Tools
ToolsVault.app
Tools & Calculators
RequestBridge Tools
NanoUtil
TechCalc.org
Discover tools-online.app - your browser's new best friend for development tasks! This snappy collection of free web tools runs entirely in your browser, keeping your data right where it belongs - with you. Jump between powerful code editors for Julia, Go, TypeScript and more, visualize with Mermaid diagrams, validate your YAML files, or compare datasets side-by-side. No downloads, no setup hassles - just fast, secure tools organized into handy categories that make everyday coding and data tasks a breeze. Whether you're debugging SQL, formatting JSON, or crafting HTML, these browser-based utilities are ready when inspiration strikes. Check back often as new tools are added regularly to streamline your workflow!
DevUtilX Tools-Online.appDevUtilX's answer
All-in-One Toolkit โ Over 100+ tools in a single place (no more 20 bookmarks).
Consistent UI/UX โ Same design language, editors, copy/download buttons โ smooth switching.
Wide Variety โ From JSON formatters โ CSS generators โ QR/barcode makers โ validators โ image compressors.
Dev-Friendly by Design โ 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 โ 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 โ the little details that matter.
DevUtilX's answer
DevUtilX's answer
Every developer knows the struggle: Youโre 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 didnโt force sign-ups, didnโt send your code to unknown servers, and didnโt make you click through pop-ups just to copy your output.
So DevUtilX was born โ 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 isnโt done โ with community feedback, new tools keep getting added to make DevUtilX even more powerful.
User-friendly and packed with a variety of tools.
NanoUtil - Generate UUIDs, format JSON/XML, create test data, and calculate compound interest. Over 20 free web tools that work offline. No sign-ups or data collection.
Best Programming Toolkit - Online tool for format/indent JSON string or XML string. calculate MD5/SHA-1/SHA-256/SHA-512 hash.
DevPicker - Free online tools for website developers, choose from text (convert, upper, lower, reverse, alternating), random (integer, color, country, youtube video), string (json decode, php serialize etc.) and lots more tools.
Converter Tools - Converter Tools is a free online service for converting files into different formats.
Appkit - A collection of generators for web development
ToolsVault.app - ToolsVault: Clean, powerful free web tools. Features JSON Formatter, QR Generator, Image Compressor, Unit Converter, Timestamp Converter & more.