Utilities
Generate and read codes, or create and extract ZIP archives locally in your browser.
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QR generator
Create a static QR code for text, Wi-Fi or a contact and download PNG or SVG.
QR image reader
Read a QR code in a local image as plain text without automatically opening links.
Barcode generator
Generate CODE128, EAN13 or UPC with input validation and PNG/SVG downloads.
Random picker and groups
Pick items from a list or distribute them into groups using Web Crypto and explicit duplicate policies.
Password generator
Generate ASCII passwords with Web Crypto randomness, explicit character groups and exclusions, without automatic storage or copying.
Batch file renamer
Preview new names for a batch of files, then download local ZIP copies without modifying the originals.
Create ZIP archive
Package local files into ZIP with STORE or DEFLATE levels 1, 6 and 9, preserving content bytes and showing the actual archive size.
Extract ZIP archive
Check a local ZIP32 archive, then download supported STORE or DEFLATE entries after size, CRC and stream-end verification.