Image Compressor
Shrink image file size with a quality slider and see how much you saved.
Your files are processed on your device and never uploaded.
How to use
- Add a JPG, PNG or WEBP image.
- Lower the quality slider, and optionally set a maximum width and pick JPEG or WEBP.
- Compare the before and after size, then download the smaller file.
About Image Compressor
The Image Compressor re-encodes your photo at the quality you choose, and can scale it down to a maximum width for an even smaller file. Everything runs on a canvas inside your browser, so it works offline once the page has loaded and nothing is uploaded. If the compressed file comes out bigger than your original, Toolsaku tells you and lets you keep the original instead.
FAQs
What quality should I choose?
70 is a good balance for photos on the web. Go to 80–90 for printing, or 40–60 when file size matters most.
JPEG or WEBP?
WEBP is usually 25–35% smaller at the same quality and works in all modern browsers. JPEG opens everywhere.
Why is my file bigger after compressing?
Already-optimised images, or PNGs with few colours, can grow when re-encoded. In that case, download the original.