Category
Utilities
Helper tools: grid splitting for social media, QR codes, graphics generation.
QR code for WiFi auto-connect with proper escaping of special characters in SSID and password.
Perceptual hash (aHash, pHash, dHash) for finding visually similar images without a server.
Hide AES-GCM-encrypted text or a file inside the LSB bits of a PNG. Companion to stego-detect.
Heuristic LSB stego detector for PNG, BMP and JPEG: chi-square test on colour pairs plus a visual least-significant-bit map.
Two-way converter: file → base64 (with or without data:URL prefix), base64 → binary file with any name.
Decodes QR from a picture or live camera. Understands links, Wi-Fi configs, vCard contacts, coordinates and plain text.
Computes MD5, SHA-1, SHA-256, SHA-384, SHA-512 locally in the browser. Useful for verifying downloads.
Generates the full favicon set from a single PNG or SVG: ICO, PNGs at all standard sizes, apple-touch-icon.
Compares two images pixel-by-pixel and shows exactly where they differ.
Splits an image into tiles — for Instagram 3×3 grids, 3×1 carousels and similar layouts.