Image Compressor
Shrink image file sizes without a noticeable drop in quality. Drag in a JPG or PNG, choose a quality level, and download a smaller file. Your images never leave your device — all processing happens locally in your browser.
Über Image Compressor
Image Compressor lets you reduce image file size without losing quality — free, and without creating an account. Shrink image file sizes without a noticeable drop in quality. Drag in a JPG or PNG, choose a quality level, and download a smaller file. Your images never leave your device — all processing happens locally in your browser.
Everything happens locally in your browser. Your image is processed on your own device using your browser's built-in capabilities, so it is never uploaded to a server and never leaves your computer. That makes Image Compressor fast — there is no upload or download wait — and private by default.
Because it is web-based, Image Compressor works on any operating system — Windows, macOS, Linux, Android, and iOS — straight from your browser, with nothing to install.
So funktioniert es
Open the tool
Load Image Compressor in your browser — no signup or download needed.
Add your image
Drag and drop your image onto the drop zone, or click to choose a file from your device.
Adjust the options
Pick any settings the tool offers. Processing happens instantly in your browser.
Download the result
Save the finished image to your device. It was never uploaded anywhere.
Häufig gestellte Fragen
Will compressing reduce image quality?
You control the trade-off with the quality slider. Higher settings keep the image visually identical while still cutting file size; lower settings shrink it further with some visible loss. Most photos compress a lot before any change is noticeable.
Which formats can I compress?
JPG and PNG images are supported. The tool re-encodes them in your browser to a smaller size.
Are my images uploaded?
No. Compression happens entirely in your browser using a canvas — your images never leave your device.
Is there a file size or count limit?
There is no artificial limit. Very large images are bounded only by your device's available memory.
Ist das privat?
Ja. Image Compressor läuft vollständig in deinem Browser mit der Rechenleistung deines Geräts. Deine Dateien werden nie auf einen Server hochgeladen, es verlässt also nichts deinen Computer.