💻 Free Developer Tools — JSON Formatter, Base64 Encoder & More
Free online developer utilities. Format JSON, encode Base64, generate UUIDs, test regex, minify CSS, generate QR codes, and more. All tools run in your browser — no signup required.
18 tools
JSON Formatter
Format, minify, and validate JSON data with syntax highlighting.
Base64 Encoder/Decoder
Encode and decode text to and from Base64 format instantly.
URL Encoder/Decoder
Encode or decode URLs and URL components for web development.
Hash Generator
Generate SHA-1, SHA-256, and SHA-512 hashes from any text input.
UUID Generator
Generate random UUID v4 identifiers for development.
Regex Tester & Converter
Test regular expressions, replace with regex, extract matches, and generate code snippets for 10 programming languages.
CSS Minifier
Minify and beautify CSS code. Remove whitespace and comments for production.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa.
Password Generator
Generate strong, secure passwords with customizable length and character options.
HTML Entity Encoder
Encode or decode HTML entities and special characters safely.
JSON to CSV Converter
Convert JSON data to CSV format for spreadsheets and databases.
CSV to JSON Converter
Convert CSV data to JSON format for APIs and web applications.
Image to Base64
Convert images to Base64 encoded strings for embedding in code.
Random Name Generator
Generate random names for characters, profiles, or testing.
YouTube Thumbnail Size Tool
YouTube thumbnail size guide and preview tool with best practice tips.
MD5 Hash Generator
Generate MD5 hash from any text input instantly. Free online MD5 generator.
QR Code Generator
Generate QR codes from texts, URLs, emails, or any string. Download as PNG.
Free Morse Code Translator — Text to Morse & Morse to Text
Convert text to Morse code and decode Morse code back to text. Supports A-Z, 0-9, and common symbols. Includes audio playback. Free, no signup.