Quantipixor
Private batch image compression in your browser. No logins. No servers. No compromise on privacy.
What it does
Quantipixor is a high‑performance, privacy‑first web tool that compresses JPG, PNG, WebP, AVIF and 14+ other formats in bulk — entirely on your device. No uploads, no servers. Compressed images are downloaded as a tidy ZIP archive.
Key features
100% Client‑Side
All compression runs in your browser via Canvas API. Your images never touch a server.
Batch Processing
Upload up to 20 images at once, queue up to 50 total across multiple sessions.
ZIP Download
Images are organised into batch‑N sub‑folders inside a single, clean ZIP archive.
Duplicate Detection
SHA‑256 hashing prevents adding the same image twice — silently and instantly.
Configurable Quality
Fine‑tune compression with a quality slider from 0.2 to 0.8 (default 0.7).
Max File Size
Individual files capped at 15 MB. Oversized files are rejected with clear feedback.
18 Input Formats
JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, SVG, TIFF, ICO and more.
Custom Naming
Set a base name and batch size to control how output files and folders are named.
Supported input formats
Canvas reliably re‑encodes to JPEG, WebP and PNG. All other formats are rasterized to PNG during compression.
Privacy Statement
No images are uploaded to any server. Processing uses FileReader, URL.createObjectURL and canvas drawing locally. No cookies or tracking related to your image data.