JSON ⇄ CSV Converter
Convert JSON arrays to CSV and CSV back to JSON with auto headers and custom delimiters.
JSON ⇄ XML Converter
Convert JSON to XML or XML to JSON, preserving attributes and nested structures.
YAML ⇄ JSON Converter
Convert YAML configuration to JSON or JSON back to YAML with full nesting support.
Regex Tester
Test regular expressions with live match highlighting, capture groups, and flags.
JWT Decoder
Decode and inspect JWT header, payload, claims, and expiry — all in your browser.
Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes via the Web Crypto API.
UUID Generator
Generate cryptographically secure UUID v4 identifiers — single or in bulk.
URL Encoder / Decoder
Percent-encode URLs and query parameters or decode encoded URLs back to text.
Base64 Encoder / Decoder
Encode text or files to Base64, or decode Base64 back to plain text or binary.
HTML Entities Encoder
Encode special characters to HTML entities or decode entities back to plain text.
Cron Expression Builder
Build, validate and explain cron expressions in plain English with next-run preview.
CSS Gradient Generator
Create linear and radial gradients with live preview and copy ready-to-use CSS.
Box-Shadow Generator
Adjust offset, blur, spread, color and inset with live preview, then copy CSS.
Color Picker & Converter
Pick any color and convert between HEX, RGB, HSL and CMYK formats instantly.
Placeholder Image Generator
Generate placeholder images of any size with custom colors, text and format.