IT & Dev Calculators
Developer utility tools
Color Studio
Color conversion, palette generation, and CSS gradient builder in one. WCAG compliant.
JSON Formatter
Format and minify JSON data with syntax highlighting.
Regex Tester
Test regular expressions in real-time with match highlighting.
Base Converter
Convert between binary, octal, decimal, and hexadecimal.
Password Generator
Generate secure random passwords with strength analysis.
UUID Generator
Generate and parse UUID v4/v7 with batch generation and format options.
Encoder / Decoder Suite
Base64, URL encoding, and hash generation in one tool. MD5/SHA support.
JWT Decoder
Decode JWT tokens and display header, payload, and claims.
Text Diff
Compare two texts with line and word-level diff highlighting.
Lorem Ipsum Generator
Generate placeholder text in Latin, Japanese, or English.
QR Code Generator
Generate QR codes from text or URL. Customize color, size, and error correction.
Image Resizer & Compressor
Free browser-based image compression and batch resizing. Supports JPEG, PNG, and WebP. No server upload — fully private.
HEIC Converter
Convert iPhone HEIC/HEIF photos to JPEG or PNG in bulk. Fully browser-based, no server upload, no file limit.
EXIF & Location Data Remover
Remove GPS, timestamps, and camera info from photos in bulk. Fully private — no server upload.
Markdown Preview
Preview Markdown in real-time. Tables, code blocks supported. Copy HTML output.