Developer Tools Tools
Formatters, validators, and encoders for developers.
All Developer Tools Tools (17)
Free Online JSON Formatter
Working with messy, unformatted JSON data can be a headache for developers. Our free online JSON Formatter makes it simple to beautify, validate, and parse your JSON strings instantly. Whether you are debugging an API response, writing configuration files, or just trying to make a block of code readable, this tool formats your data with proper indentation and highlights syntax errors so you can fix them immediately.
Base64 Encode / Decode
Need to safely embed an image in CSS or transfer complex data via JSON? Our free Base64 Encoder/Decoder provides instant, secure translation between plain text and Base64 strings.
URL Encode / Decode
Dealing with broken links or messy URL parameters? Our free URL Encode/Decode tool translates spaces and special characters into safe web formats instantly.
HTML Encode / Decode
Need to display raw code on a webpage without the browser executing it? Our free HTML Encode/Decode tool safely escapes special characters into standard HTML entities.
MD5 Hash Generator
Need to verify a file download or check a legacy database entry? Our free MD5 Generator instantly computes the standard 32-character hexadecimal MD5 checksum for any text.
SHA1 Generator
Working with Git repositories or verifying legacy digital certificates? Our free SHA1 Generator quickly computes the standard 160-bit hash for any text string you provide.
SHA256 Generator
Building secure APIs or working with blockchain technology? Our free SHA256 Generator instantly computes the industry-standard, mathematically unbreakable 256-bit cryptographic signature for your data.
UUID Generator
Building a database and need guaranteed unique primary keys? Our free online UUID Generator instantly creates cryptographically secure Version 4 Universally Unique Identifiers.
JWT Decoder
Need to see what data is inside an authentication token? Our free JWT Decoder instantly parses JSON Web Tokens, allowing you to securely inspect the header and payload claims.
HTML Minifier
Looking to boost your website's page speed score? Our free HTML Minifier removes unnecessary characters from your code, drastically reducing file size without changing how the page looks.
CSS Minifier
Heavy stylesheets slowing down your site? Our free CSS Minifier instantly compresses your cascading style sheets, stripping out bloated formatting to deliver lightning-fast load times.
JavaScript Minifier
Is JavaScript dragging down your PageSpeed score? Our free JS Minifier instantly compresses your scripts, ensuring your interactive web applications load as fast as possible.
SQL Formatter
Staring at a massive, unreadable block of SQL code? Our free SQL Formatter instantly organizes and indents your queries, making them beautiful and easy to debug.
XML Formatter
Dealing with a massive, unreadable block of XML from an old API? Our free XML Formatter instantly indents and structures your data into a clean, human-readable tree.
Password Generator
Still using the same password for every website? Stop risking your security. Our free Password Generator creates highly secure, random passwords instantly to keep your accounts safe.
QR Code Generator
Need to share a website link on a physical flyer or a restaurant menu? Our free QR Code Generator creates high-resolution, scannable 2D barcodes instantly.
Random Number Generator
Hosting a giveaway, playing a tabletop game, or just need to make a fair decision? Our free Random Number Generator provides instant, unbiased numbers within any range you set.