Encode and decode Base64 strings instantly. Free online Base64 converter with URL-safe encoding for developers.
Convert between HEX, RGB, and HSL color formats instantly.
Visualize and understand cron job schedules.
Convert between CSS units: px, rem, em, vw, vh, pt.
Compare two text blocks and see differences.
Convert between Unix timestamps and human-readable dates.
Generate sample personal data for testing.
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes.
Convert special characters to HTML entities and back.
Convert between JSON and CSV formats instantly.
Format, validate, and beautify JSON instantly. Free online JSON validator with syntax highlighting and error checking.
Paste JSON and generate a JSON Schema.
Decode and inspect JWT tokens. View header and payload.
Generate Lorem Ipsum placeholder text for design.
Generate random placeholder images for design and layouts.
Preview Markdown text in real time.
Generate strong, random passwords instantly. Free, private, no signup required.
Generate QR codes from text or URLs.
Test regular expressions with live match highlighting.
Format SQL queries to make them more readable.
Encode or decode URL strings and query parameters.
Generate random UUID v4 identifiers instantly. Free, private, no signup required.