Image compressor
Compress Image Online
Compress JPG, PNG, and WebP images online with Kompresio. Fast, private, browser-based image compression with batch ZIP download support.
How to use: 3 steps
- 1Upload imagesDrag JPG, PNG, WebP to the left panel or click Browse
- 2Adjust and processBalanced default works for most files. Then click "Compress image"
- 3Download resultsResults and download buttons appear here
Step 1 — No files yet
Upload to start compress image
Steps: 1) Upload JPG, PNG, WebP, 2) keep the Balanced preset, 3) click "Compress image" then download. Everything runs locally in your browser.
Original size
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Output size
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Saved
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Format
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Dimensions
Appears after clicking "Compress image"
Time
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Your images stay on your device
Compress Image runs locally in your browser: JPG, PNG, WebP, AVIF never leave your device for compression, preview, or ZIP export.
Guide
How to use Compress Image
Kompresio keeps compress image online practical: the tool loads first, then useful guidance explains settings and use cases.
How to compress image
- 1
Upload one or more images.
- 2
Choose a quality preset or set quality manually.
- 3
Preview the output and download a single image or ZIP.
Why use Kompresio
- Reduce file size before website, email, form, or marketplace uploads.
- Preview original and optimized output before download.
- Strip metadata during export for a cleaner file.
Best for
Supported formats include JPG, PNG, WebP, AVIF, GIF, SVG. For advanced server-side processing, use direct object storage upload rather than posting large images to serverless functions.
Related tools
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Conversion
Resize Image
Resize JPG, PNG, WebP, and AVIF images by width, height, percentage, or preset directly in your browser.
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Metadata Cleaner
Remove image metadata and export clean files. Kompresio helps strip camera, software, and location-related details from photos.
Privacy
Batch Converter
Batch process multiple images with Kompresio. Convert, compress, resize, clean metadata, and export results as a ZIP archive.
Batch
FAQ
Questions about Compress Image
Clear answers for privacy, formats, batch processing, and output quality.
Are my images uploaded to a server?
Core tools run in your browser. For the MVP flow, Kompresio processes previews, compression, conversion, resizing, metadata cleaning, and ZIP export locally on your device.
Can I process multiple images?
Yes. You can add multiple files to the queue, process them together, and download the results individually or as a ZIP archive.
Does compression reduce quality?
Lossy formats can reduce quality if the quality value is too low. The balanced presets use practical values for smaller files while keeping the image visually clean.