Compress and convert images in seconds
Optimize JPG, PNG, WebP, AVIF, and HEIC images directly in your browser. No sign-up. Files stay on your device.
Drop images here or browse
Supports JPG, PNG, WebP, AVIF, HEIC, GIF, and SVG. Your images stay on your device for basic tools.
marketplace-product.jpg
2.4 MB → 312 KB
blog-cover.png
1.8 MB → 420 KB
hero-image.webp
980 KB → 284 KB
14+
Free tools, no sign-up
20 MB
Max file size per image
50 files
Batch queue with ZIP export
100%
Client-side private processing
Popular tools
One workflow for image optimization
Use the most common tools immediately, then expand into batch, privacy, and developer workflows when needed.
Preview first
Know what changed before you download
Kompresio keeps the tool UI first: upload, tune quality, compare visible output, then download one file or a ZIP archive.
Original
2.4 MB
Optimized WebP
312 KB
Saved
87%
Processing
420ms
Original JPG
4000x2667 · 2.4 MB
Optimized WebP
1920x1280 · 312 KB
Workflow
A fast tool flow without server upload
Kompresio is designed for repeat work: upload, tune, preview, and export in a few focused steps.
1. Upload
Drag and drop single images or a full batch of up to 50 files.
2. Choose settings
Balanced preset works for most. Adjust quality, format, and resize if needed.
3. Preview
Compare before and after with size, format, dimensions, and time.
4. Download
Export one file or everything as a ZIP with summary included.
Supported formats
Built for modern image pipelines
Convert images to WebP, resize assets, clean metadata, export batches, and prepare images for fast-loading Next.js websites.
JPG
PNG
WebP
AVIF
HEIC
GIF
SVG
Format comparison
Pick the right format for every job
Each image format has trade-offs between size, quality, feature support, and browser compatibility. Use this table to choose the best format before you export.
Swipe sideways to see all columns
| Format | Compression | Transparency | Animation | Browser support | Best for |
|---|---|---|---|---|---|
| JPEG.jpg | Lossy | Universal | Photos, web images | ||
| PNG.png | Lossless | Universal | Screenshots, UI, logos | ||
| WebP.webp | Lossy + Lossless | 97% | Websites, performance | ||
| AVIF.avif | Lossy + Lossless | 93% | Modern web, Core Web Vitals | ||
| GIF.gif | Lossless | Universal | Simple animations | ||
| SVG.svg | Vector | Universal | Icons, illustrations, logos |
Why Kompresio
A professional image utility, not only an upload box
The product is structured for real users and organic discovery: tool-first UX, privacy confidence, and practical SEO content.
Private by default
Images never leave your device. No upload, no account, no tracking of file content.
No sign-up needed
Open a tool, drop files, download results. Works on mobile and desktop.
Batch and ZIP ready
Process up to 50 images at once and export everything as one ZIP.
Web-ready output
WebP, AVIF, resize presets, and clean filenames for sites and marketplaces.
Use cases
One app for everyday image prep
Pick your job — Kompresio sets the right format, size, and export for it.
Websites
Hero, blog, and product images under target KB.
Marketplace
Clean 1000px product photos ready to upload.
Social media
Square, story, and thumbnail presets.
Documents
Compress scans and forms without blur.
Developers
WebP/AVIF batches with ZIP manifests.
Students
Free PDF and image prep, no account.
Testimonials
Used by designers, developers, and sellers
People use Kompresio for different jobs. Here is how it fits into real workflows.
I process about 200 product photos a week for my marketplace listings. Kompresio saves me the subscription cost of dedicated photo tools while keeping my images clean and under 200 KB.
Rina Amelia
Marketplace seller, Tokopedia
The batch WebP converter with ZIP export is the feature I use most. Drag in a folder of JPGs, set quality to 80, and get a ZIP of WebP files ready for production.
Dimas Prayoga
Frontend developer
I was surprised to see GPS coordinates and camera model info in my vacation photos. The metadata scanner caught them before I shared the album online.
Sari Fitriani
Graphic designer
Built a Next.js landing page and needed optimized hero images. Resized to 1920px, converted to WebP, and the page hit 98 Lighthouse Performance. No server upload needed.
Bagus Wirawan
Web developer
Learn
Guides and tutorials for image optimization
Practical articles about compression, formats, resize, metadata privacy, and developer workflows.
Start optimizing images in 30 seconds
1 Upload → 2 Keep Balanced → 3 Download. Files stay on your device.