DevBench: Your Developer Playground
100+ Free online developer tools.
Format, convert, decode, validate, generate — instantly in your browser.
All Developer Tools
Choose from our collection of 100+ free online tools
Formatters
JSON Formatter & Validator
Format and validate JSON data
HTML Formatter
Beautify and format HTML code
CSS Formatter & Minifier
Format and minify CSS stylesheets
JavaScript Formatter
Beautify JavaScript code
SQL Formatter
Format SQL queries beautifully
XML Formatter
Format and validate XML documents
JavaScript Minifier
Minify JavaScript code
CSS Minifier
Minify CSS code
Security
Converters
URL Encoder & Decoder
Encode and decode URL strings
Color Code Converter
Convert between color formats
Timestamp Converter
Convert Unix timestamps to dates
HEX to RGB
Convert HEX to RGB colors
JSON to YAML
Convert JSON to YAML
JSON to XML
Convert JSON to XML
CSV to JSON
Convert CSV to JSON
Decimal to Hex
Convert decimal to hex
Hex to Decimal
Convert hex to decimal
Binary to Decimal
Convert binary to decimal
Decimal to Binary
Convert decimal to binary
Text
Markdown Previewer
Preview markdown in real-time
Word Counter
Count words, characters, and lines
Remove Duplicate Lines
Remove duplicate lines from text
Text Sorter
Sort lines alphabetically
Case Converter
Convert text case online
Random Text Generator
Generate random lorem ipsum text
Regex Tester
Test regular expressions
Diff Checker
Compare two texts
Lorem Ipsum Generator
Generate placeholder text
String Reverser
Reverse text strings
Generators
Images
Validators
Network
Lightning Fast
Instant results with no server delays. Every tool processes data directly in your browser.
100% Private
All tools run in your browser. Your data never leaves your device and is never sent to any server.
Free Forever
No signup, no subscription. Every tool is completely free with no usage limits or hidden fees.
What is DevBench?
DevBench is a free collection of 90+ online developer tools designed to save you time every day. Whether you are a professional software engineer, a student learning to code, or a designer who occasionally needs a quick utility, DevBench gives you instant access to the tools you need without any friction.
Every tool on DevBench runs entirely in your browser using client-side JavaScript. Unlike most online tools that upload your data to remote servers, DevBench processes everything locally. This means your JSON data, source code, images, and PDF files never leave your device — ensuring complete privacy and security.
From formatting and validating JSON, HTML, CSS, JavaScript, SQL, and XML to converting images, compressing PDFs, generating passwords, decoding JWTs, and testing regex patterns — DevBench covers the full range of tasks developers encounter daily.
Why Developers Choose DevBench
No Installation Required
Open any tool in your browser and start working immediately. Nothing to download, install, or configure. Works on any device.
Works Offline
Once a tool page loads, it works without an internet connection. Format JSON, generate passwords, or convert colors even offline.
Built for Real Workflows
Every tool is designed around real developer workflows — large file support, cryptographically secure generation, and production-quality output.
Constantly Growing
Started with a handful of tools and grown to 100+ across formatters, converters, PDF tools, image tools, network tools, and AI utilities.
Frequently Asked Questions
Are all DevBench tools completely free?
Yes, every tool on DevBench is 100% free with no registration, subscription, or hidden fees. You can use any tool as many times as you need without creating an account.
Is my data safe when using DevBench tools?
Absolutely. All tools process data entirely in your browser. Your code, files, and data are never uploaded to any server, never stored, and never transmitted over the internet.
What types of tools does DevBench offer?
DevBench offers 100+ tools across formatters, converters, generators, validators, image tools, PDF tools, network tools, and AI utilities — all free, no signup required.
Do DevBench tools work on mobile devices?
Yes, DevBench is fully responsive and works on smartphones and tablets. All tools are designed with mobile-friendly layouts.
How is DevBench different from other tool sites?
DevBench processes everything locally in your browser — your data never leaves your device. No file size limits, no watermarks, no forced account creation.