Mokivo

IMAGE Free · no sign-up In your browser

Compress an image online

Make photos smaller for the web, email and faster page loads. Set the quality, watch a live size estimate, and export a lean JPG or WebP — all in your browser.

No server uploadNo sign-upLive size estimateQuality control

Drop an image to compress

or click to choose from your device

Choose image

PNG · JPG · WEBP · GIF · BMP

Your image is compressed locally on your device with a canvas. Nothing is uploaded to any server.

How it works

Compress in three steps

Add your image

Drag a photo onto the box or click to browse. It loads right away — no server upload.

Set the quality

Slide the quality control and watch the live estimate. Pick JPG for the smallest file or WebP to keep transparency.

Download

Export the compressed image and see exactly how much you saved. Compress as many as you like, free.

Why use it

Smaller files, sharp results

Live size estimate

See roughly how big the file will be as you move the quality slider — no guessing.

JPG or WebP

JPG gives the smallest photos; WebP is smaller than JPG at the same quality and keeps transparency.

Quality you control

From near-lossless down to heavily compressed — you decide the trade-off.

100% private

Compression happens on your device with a canvas — your image is never uploaded to any server.

Good to know

How image compression works

Compression re-encodes your photo, discarding detail your eye is least likely to notice to make the file dramatically smaller. This tool does it locally with a canvas, so nothing is uploaded to any server and the result is ready right away.

Which quality should I use?

Around 70–80 is the sweet spot for most photos — a big size drop with no visible loss. Go higher for hero images where detail matters, lower when file size is all that counts.

JPG vs WebP

JPG is universally supported and great for photographs. WebP usually produces a smaller file at the same quality and can keep transparency — an easy win if your audience uses modern browsers.

Common uses

Compress JPG, PNG and WebP without a visible loss

Reduce image size for a website

Smaller images load faster and help page speed scores. Start around quality 75–80 for photos and check the live size estimate before exporting.

Compress many images at once

Drop several images together and process them all with the same settings. You get one ZIP with every compressed file.

Already optimized? We keep the original

If compressing would make the file bigger — common with images that were already saved at low quality — the tool hands your original back instead of a worse one.

Private by design

Compression happens in your browser. Photos with faces, documents or client work never leave your device.

FAQ

Frequently asked questions

Is the image compressor free?

Yes — completely free, no account and no watermarks. Part of Mokivo.

Are my images uploaded to a server?

No. Compression happens locally in your browser, so your image never touches a server.

How much smaller will my image get?

It depends on the photo and quality. The live estimate shows it before you export — savings of 60–90% are common from a large original.

Will it reduce the dimensions too?

No — compression keeps the pixel dimensions and lowers the file size. Use the Resize tool to change dimensions.

What formats can I export?

JPG or WebP — or Auto to keep a sensible default for your image.

More image tools

Keep going

Every creator tool, one place

Resize, crop, convert and clean up images, audio and video — all in your browser.

Browse all tools →