Developer Tools
Powerful and free web utilities for developers, including formatters, encoders, decoders, and code generators.
Base64 Encoder & Decoder
Instantly encode clear text into Base64 format or decode it back to human-readable strings.
HTML Minifier
Compress and optimize your HTML source code by removing unnecessary spaces, tabs, and line breaks.
JSON Formatter
Format, validate, and beautify your messy JSON code to make it perfectly readable and structured.
URL Encoder & Decoder
Encode URLs safely for web transmission or decode complex URI components back to plain text.
QR Code Generator
Generate high-quality, scannable QR codes for your URLs, text, Wi-Fi passwords, or contact info.
MD5 Hash Generator
Compute secure MD5 cryptographic hashes from strings to verify data integrity securely.
About Our Developer Tools
Small debugging tasks come up constantly during development — pretty-printing an ugly API response, checking what a Base64 payload actually contains, or generating a hash to compare two files. Installing a full IDE plugin or command-line tool for a five-second check is usually overkill, and copy-pasting into a random online tool with unclear origins isn't ideal when the data might be sensitive.
Every tool here runs its logic client-side using the same algorithms your browser and standard libraries already implement — so a Base64 string decoded here will match what atob() or Python's base64 module produces, and an MD5 hash will match PHP's md5() output exactly.
Every tool works instantly without an API key or sign-up.
The JSON Formatter flags syntax errors instead of silently failing.
Encoding and hashing follow the same specs used across common libraries.
All processing happens client-side — no server round-trip.
Built for quick lookups without breaking your workflow.
Use any tool as many times as you need, with no throttling.
Frequently Asked Questions
All formatting happens entirely in your browser, so pasted JSON is never sent to a server. That said, we recommend avoiding pasting live production credentials into any third-party tool as a general security habit.
Yes. The hashing follows the standard MD5 algorithm, so the output matches what you'd get from PHP's md5(), Python's hashlib, or any standards-compliant implementation.
Yes, the encoder correctly handles UTF-8 text, including accented characters, symbols, and emojis, converting them to valid Base64 output.
Yes, you can generate a QR code from any plain text string, including formatted Wi-Fi credential strings, contact details, or SMS text, not just URLs.