💻 Developer Tools
Free online developer tools – JSON formatter, regex tester, UUID generator, password generator, QR code tools and more.
20 free tools available
All Developer Tools
JSON Beautifier
Beautify and format JSON with customizable indentation and syntax highlighting. Free online JSON beautifier for developers.
JSON Minifier
Minify and compress JSON data by removing whitespace and formatting. Free online JSON minifier for production optimization.
CSS Minifier
Minify CSS code to reduce file size and improve page load speed. Free online CSS minifier for web developers.
JS Minifier
Minify JavaScript code to reduce bundle size for production. Free online JavaScript minifier – no server, fully client-side.
HTML Minifier
Minify HTML markup to reduce page size and improve loading speed. Free online HTML minifier for web developers.
SQL Formatter
Format and beautify SQL queries for better readability. Supports SELECT, INSERT, UPDATE, DELETE and more. Free online SQL formatter.
Regex Tester
Test and debug regular expressions in real time with highlighted matches. Free online regex tester with flags and match details.
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Free online timestamp converter supporting milliseconds and seconds.
UUID Generator
Generate RFC 4122 compliant UUID v1, v4 universally unique identifiers. Free online UUID/GUID generator for developers.
Password Generator
Generate strong, secure, random passwords with custom length, symbols, and character rules. Free online password generator.
SHA256 Generator
Generate SHA-256 cryptographic hash from any text string. Free online SHA256 hash generator for developers and security professionals.
MD5 Generator
Generate MD5 hash checksums from any text string. Free online MD5 generator for data verification and checksums.
JWT Decoder
Decode and inspect JWT tokens to view header, payload, and signature. Free online JWT decoder for developers.
Color Code Converter
Convert between HEX, RGB, RGBA, HSL, and HSB color formats. Free online color code converter with live preview.
QR Code Generator
Generate QR codes for URLs, text, WiFi, and more. Free online QR code generator with custom size and download options.
QR Code Scanner
Scan QR codes using your browser camera or upload an image. Free online QR code scanner – no app download needed.
HTACCESS Generator
Generate .htaccess configuration for redirects, HTTPS enforcement, cache headers, and security rules. Free online .htaccess generator.
User Agent Parser
Parse and analyze browser user agent strings to detect browser, OS, and device type. Free online user agent parser.
Diff Checker
Compare two code blocks or text files and see differences highlighted. Free online diff checker with line-by-line comparison.
Code Formatter
Format and beautify HTML, CSS, and JavaScript code with proper indentation. Free online code formatter for developers.
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About Developer Tools
Free online developer tools – JSON formatter, regex tester, UUID generator, password generator, QR code tools and more. SaaSUtils provides a comprehensive collection of 20 developer tools that work directly in your browser without any installation or server uploads. All tools are completely free to use.
Key Features
- 100% browser-based — your data never leaves your device
- No signup or registration required
- Mobile-friendly and works on all devices
- Instant results with no loading delays
- Copy results to clipboard with one click