Local and private compression

Online Image Compressor

Optimize JPG, PNG, and WebP in your browser, with before/after comparison, batch compression, and real controls for web-ready images. Your images are not uploaded to a server.

Original

0 B

Compressed

0 B

Total savings

0 B / 0%

Drop images on the compression bench

Drag JPG, PNG, or WebP files, or click to select multiple at once. Individual compression is free; advanced exports may require unlock.

JPGPNGWebP

Processed

Original weight

0 B

Compressed weight

0 B

Savings

Batch export

Download everything as ZIP, convert batches to WebP, or copy an optimization checklist for fast sites. Unlock applies only to this tool.

Direct answer

How to compress an image without losing quality?

To compress an image without noticeable quality loss, reduce oversized dimensions, use quality between 70% and 85%, and prefer WebP for large photos. This tool compresses in the browser, shows before/after, and lets you download individual images for free; advanced batch features may require unlock.

Load images in the browser

Drag JPG, PNG, or WebP into the bench. Files stay on your device.

Adjust quality, size, and format

Choose quality, MB limit, max width/height, and whether to keep the format or convert to WebP.

Compare and export

Use the before/after slider, check savings, and download individual images or unlocked batch exports.

Frequently asked questions

Are my images uploaded to a server?+

No. Compression runs locally in your browser. Abstract does not receive your image files.

What is the difference between JPG, PNG, and WebP?+

JPG is great for photos, PNG preserves transparency and graphic detail, and WebP usually creates smaller files for modern websites.

Does compression lose quality?+

Aggressive settings can reduce visual quality, but you control the level and can compare before/after before downloading.

What is the ideal size for website images?+

As a practical rule, keep common images under 200 KB and use dimensions close to the size they are displayed at.

Do compressed images improve SEO and Core Web Vitals?+

Yes. Smaller files help LCP, mobile loading, and perceived experience, all tied to organic performance.

Can I compress images in batches?+

Yes. Basic compression runs in the browser; larger batches, ZIP, and full WebP batch conversion may require unlock.

What happens to metadata and privacy?+

You can remove metadata to reduce weight and data exposure. When preservation is enabled, the flow tries to keep EXIF when supported.

AbstractOS

Light images are only half the gain

Use Prisma Studio to create pages designed for performance, SEO, and Core Web Vitals from the first layout.

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