CABOKIT TOOLKIT
Free Local Image
Compressor
No files uploaded to servers — 100% private, free, and unlimited. Compress in your browser, then download ZIP.
100% LOCAL PIPELINE
Batch compress · keep 2K/4K · zip in-browser
Web Worker concurrency with no backend server. Built for indie sites and ecommerce product-image batches.
Only resizes if longer than this. Most photos are already smaller — size often barely changes here; use Quality / Exact size instead.
Fixed for this converter. Homepage can switch formats.
Tip: Max edge keeps 2K/4K fidelity—it won't shrink small images. To force a smaller file, lower Quality or switch to Exact size.
FROM THE AUTHOR
Hi, I built this tool
If you like this no-login, ad-free experience, check out my other focused apps. Need it in your company workflow (Discord Bot / internal chat)? Ask me for a private script.
NO UPLOAD & 100% SECURE
JPG to WebP Converter Online
Convert JPEG/JPG batches to WebP locally. Output is locked to WebP on this page—no cloud queue, no file upload, one-click ZIP when done.
What this page actually does
JPEG/JPG → WebP in your browser
No upload batch conversion
ZIP pack after convert
FAQ
- Can I switch away from WebP on this page?
- No. This converter is locked to WebP. Use the homepage if you need to pick JPEG, PNG, WebP, or keep the original format.
- Are my images uploaded to a server?
- No. Conversion runs entirely in your browser with Web Workers—files never leave your device.
- Can I convert a whole batch at once?
- Yes. Drop multiple images, convert locally with concurrent workers, then download a ZIP in one click.
Related tools
Compress Image to Exactly 200KB Online
Hit a precise size cap for forms, email, and product uploads—default 200KB, fully editable.
Free Secure PNG to WebP Batch Converter
Batch-convert PNG to WebP in your browser. No upload, concurrent workers, then ZIP locally.
No Upload High Quality Image Optimizer
Quality-first local optimize for corporate assets and designers—nothing leaves your device.
Compress Image to 100KB Online
Strict 100KB cap for forms and email attachments—exact-size mode, no upload.
Compress Image to 500KB Online
500KB for product photos and CMS galleries—local, private, free.
Convert Images to WebP Online
Drop PNG or JPEG batches and convert everything to WebP—locked output for faster sites.