All tools run entirely in your browser. Your data never leaves your device.
Format, validate, and beautify JSON data with syntax highlighting and error detection.
Encode and decode Base64 strings instantly. Perfect for API testing and data transmission.
Generate unique identifiers (v4 UUIDs) for databases, APIs, and distributed systems.
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for any text input.
Generate beautiful color palettes with hex, RGB, and HSL values for your designs.
Create custom QR codes for URLs, text, WiFi credentials, and more. Download as PNG.
Convert between Unix timestamps and human-readable dates in any timezone.
Compare two text blocks and highlight differences line by line.
Generate placeholder text for mockups and designs. Paragraphs, words, or sentences.
Encode and decode URL parameters and query strings for safe transmission.
Write markdown and preview it in real-time. Perfect for README files and documentation.
Convert CSV data to JSON format instantly. Supports custom delimiters and headers.
