OneClick Toolbox

Compress Image

Quality slider or a target size in KB. Several images at once, ZIP download, nothing uploaded.

Runs entirely in your browser. Your files never leave your device. How we handle data

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Output has no EXIF metadata. PNG re-encoding is lossless and may not shrink; choose WebP or JPEG for smaller files.

How to use the image compressor

  1. Step 1

    Add images

    Drop one or more JPG, PNG or WebP files onto the page, or click to browse. Each file is compressed right away with the current settings.

  2. Step 2

    Pick quality or a target size

    Move the quality slider, or switch to Target size and type a limit in KB. The tool searches for the highest quality that fits under that limit, then click Apply.

  3. Step 3

    Download

    Save each image on its own, or download all of them in one ZIP. The size before and after and the saving are shown for every file.

Frequently asked questions

Are my images uploaded?

No. Images are decoded and re-encoded by your browser with the Canvas API. Nothing is sent to a server, and nothing is stored by this site.

How does the target size mode work?

The tool encodes the image several times at different quality levels (a binary search) and keeps the highest quality that fits under your KB limit. If even the lowest quality is still larger, it says so and keeps the smallest result; setting a maximum dimension to scale the image down usually gets you under the limit.

Why is my PNG not getting smaller?

PNG is lossless, and the browser's PNG encoder does not optimise as hard as dedicated tools, so a re-encoded PNG can be as large as the original or larger. In that case the original file is kept and you can choose WebP or JPEG for a real reduction. Transparency is preserved in WebP and PNG, not in JPEG.

What happens to EXIF data and orientation?

The photo is rotated correctly according to its EXIF orientation, and the output contains no EXIF block (camera model, GPS location and so on). This makes the file smaller and removes personal metadata.

Is there a file size or count limit?

There is no fixed limit; it depends on your device's memory. Very large photos (over roughly 50 megapixels) can fail in some browsers. Images are processed one after another, so adding many files simply takes longer.

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