OptiSqueeze Image Compressor by QANEN
OptiSqueeze compresses JPEG, PNG, WebP and AVIF images entirely on your device. Images never leave your browser — there is no upload step, no server, and no account to create.
Most online compressors quietly ship your photos to a server. OptiSqueeze inverts that model: compression runs locally with WebAssembly codecs, so your files stay private by architecture, not by policy. Privacy you can verify in your browser's network tab.
It ships with lossless and visual presets — Balanced, Web Ultra, Lossless — a batch queue for working with many images at once, and a before/after comparison slider so you can judge every squeeze with your own eyes instead of trusting a number.
Once the codecs are cached, OptiSqueeze keeps working offline. It is free to use, instant to start, and built to the same standard as everything we make: useful, accessible, engineered properly.
Image Compressor by Qanen lives at its own address — downloads, documentation, guides and updates.
OptiSqueeze, feature by feature.
Client-side only
Every image is processed on your device. Nothing is uploaded — full stop. No server ever sees your files.
Four modern formats
Compress to and from WebP, AVIF, JPEG and PNG, with dedicated per-format tools on the product site.
Lossless & visual presets
One-click Balanced, Web Ultra and Lossless presets, plus fine-grained quality control when you want it.
Batch queue
Drop in a whole folder of images and compress them together in one pass.
Comparison slider
A before/after slider to inspect quality loss visually before you commit to saving.
Works offline
Once the WASM codecs are cached, the tool keeps working with no connection at all.
EXIF stripping
Location and camera metadata can be removed as part of compression — covered in the product's guides.
No sign-up, no limits
Free, instant, unlimited. The tool opens the moment the page does.
The essentials.
- Where it runs
- Any modern web browser (desktop, tablet, phone)
- Input / output
- JPEG, PNG, WebP, AVIF
- Processing
- 100% client-side — WebAssembly codecs (AVIF, WebP, PNG, JPEG)
- Uploads
- None. Images never leave your device
- Price
- Free, no sign-up, no limits
- Offline
- Works offline once codecs are cached
Quick answers.
Do my images get uploaded anywhere?
No. All compression happens inside your browser with WebAssembly. Turning off your network mid-compression still finishes the job.
Where do I use it?
Directly at compressor.qanen.site — nothing to install.
A private, client-side-only image compressor that runs entirely in your browser.
Compress JPEG, PNG, WebP and AVIF images without a single byte ever leaving your device — no uploads, no servers, no sign-up.