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Free Online Image Compressor

Reduce image file size for JPG, PNG, and WebP with adjustable quality — compressed entirely in your browser.

Runs entirely in your browser — your files are never uploaded to a server.

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This tool processes your images entirely in your browser. Your files are never uploaded to our servers.

How It Works

1. Choose Your File

Drag & drop or select the file you want to work with.

2. Processed in Your Browser

Everything happens locally on your device — your file is never uploaded anywhere.

3. Download Your Result

Get your finished file instantly, ready to save or share.

About Free Online Image Compressor

Large image files slow down websites, fill up phone storage, and make emails bounce back with “attachment too large” errors. Most of the time, a photo straight off a modern phone or camera is far bigger than it needs to be for how it’s actually going to be used.

This tool reduces file size by re-encoding with smarter compression, without changing dimensions. For JPG and WebP, this typically cuts file size 60-80% with quality loss most people can’t spot at normal viewing size. PNG compresses less dramatically since it’s lossless by design.

Compression happens entirely in your browser — never uploaded anywhere, meaning no waiting on an upload before getting your result back. For compressing several images at once rather than one at a time, our Bulk Image Compressor handles that instead.

Frequently Asked Questions

How do I compress images?

Add your JPG, PNG or WebP files, set the quality slider (10 to 100, default 80), choose to keep the format or convert to JPEG or WebP, then click Compress All. You can add several files at once and download each result separately. Everything runs in your browser.

How do I compress image file size?

Lower the quality slider and choose JPEG or WebP output, since those formats shrink the most. The tool shows the before and after size for every file. It has no target-size setting, so it cannot hit an exact figure such as 100 KB; adjust quality and check the result.

How do I compress an image without losing quality?

Not completely: JPEG and WebP compression is lossy, but at 80 to 90 percent quality most photos look nearly identical at a much smaller size. PNG is re-saved losslessly, so the slider will not shrink PNGs; choose Convert to WebP for real savings that also keep transparency.

Are my images uploaded anywhere?

No. Compression uses your browser's Canvas feature, so your images stay on your device and are never sent to a server. There is no signup and no account, and you can use it as often as you like.

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