What is an image compressor?
An image compressor makes a photo smaller in file size so it uploads faster, uses less data and fits website or form limits. This free tool compresses and resizes pictures inside your browser. Your image is never uploaded to our servers, so your photos stay private.
How to compress an image
- Press the file box and choose a JPG, PNG or WebP picture.
- Set the quality. A value between 60 and 80 keeps a photo looking good while cutting the size a lot.
- Choose a maximum width. Most websites and forms do not need more than 1280 pixels.
- Check the new size shown under the controls and look at the preview.
- Press Download image to save the smaller file.
Why reduce image size?
- Online forms: job, admission and visa portals often limit uploads to a certain size in KB.
- Faster websites: large photos slow pages down, and speed matters for visitors and search engines.
- Messaging and email: smaller files send quickly and use less mobile data.
- Storage: compressed pictures take less space on your phone and computer.
Choosing the right settings
Quality and width both change the file size. Lowering the width usually saves more than lowering the quality, because the picture has fewer pixels. For a form with a strict limit, try a width of 800 pixels first and then lower the quality in small steps until the size fits. Very low quality makes visible blocks, so check the preview each time.
Things to know
The output is a JPEG file. If your original is a PNG with a transparent background, the transparent area becomes white. JPEG compression is lossy, which means some detail is removed for good, so always keep your original picture. Screenshots with sharp text and logos may look softer at low quality.
Privacy
All the work happens on your own device. The picture is not sent anywhere and is not stored by this website.
Frequently asked questions
Is this image compressor free?
Yes. It is free, needs no account and has no daily limit.
Is my photo uploaded anywhere?
No. The image is processed inside your browser and never leaves your device.
How do I make an image under 100 KB?
Set the width to 800 pixels or less, then lower the quality step by step until the size shown is below 100 KB.
Why is my PNG background white?
The tool saves JPEG files, which do not support transparency, so transparent areas are filled with white.
Does compressing reduce quality?
Yes, a little. At 70 to 80 percent quality the difference is usually hard to see.