Online image compressor
Make JPG, PNG, WebP and HEIC images smaller, right in your browser.
Drop images here or click to choose
JPG, PNG, WebP, GIF, BMP, AVIF and HEIC · several at once · nothing is uploaded
🔒 Images are compressed on your device and never uploaded.
75% is a good balance: much smaller files with no visible difference.
How to compress images online
- Choose the output format and quality, or tick Compress to a maximum size and enter a size in KB.
- Drop your images on the box or click it to choose them. You can add many at once.
- Each image is compressed on your device. You see the new size and how much smaller it is, and you can compare it with the original.
- Download the images one by one, or all together as a ZIP file.
Compress an image to 20 KB, 50 KB, 100 KB or 200 KB
Online forms, job portals and government websites often accept photos and scans only below a size limit. Tick Compress to a maximum size, pick 20, 50, 100, 200 or 500 KB or type your own limit, and drop the image. The tool lowers the quality step by step, and reduces the dimensions only if it has to, until the file fits. If a limit is too small for a readable image, it tells you.
Which format should I choose?
- JPG is the safest choice for photos: every website and phone accepts it. Transparent areas become white.
- WebP makes files about 25–35% smaller than JPG at the same quality and keeps transparency. All current browsers support it, but some upload forms still do not.
- PNG is best for screenshots, logos and graphics with few colors. The tool reduces PNG files to a palette of 256 colors (the same idea as TinyPNG), which usually makes them 50–80% smaller and keeps transparency.
- Same as original keeps each file in its own format. If an image is already well compressed, the original is kept so you never get a bigger file.
Choosing the quality
For JPG and WebP, 70–80% is the sweet spot: files are often 60–80% smaller and the difference is hard to see. Go down to 50–60% for thumbnails and email, and up to 85–90% for photos you want to print. Use Compare to check the result side by side before you download.
Resize while you compress
Photos from phones are usually 4000 pixels wide or more, far bigger than any screen needs. Setting Resize to 1920 or 1280 pixels on the longest side often cuts the file size more than the quality setting does. The proportions are kept.
iPhone HEIC photos
Photos from an iPhone are often saved as HEIC, which many websites do not accept. Drop them here and choose JPG to convert and compress them in one step. The conversion runs in your browser too.
Private by design
Your images are never uploaded: decoding, resizing and compression all run in your browser, so even personal photos and ID scans stay on your device. Compressed images also lose hidden metadata such as the camera model and GPS location, which is removed when the image is re-encoded.
Frequently asked questions
Is there a limit on the number or size of images?
No fixed limit. Very large images (over about 50 megapixels) can be slow on phones because everything happens on your device.
Will compressing reduce the quality?
JPG and WebP compression removes details you usually cannot see; at 75% quality most people cannot tell the difference. Use Compare to check.
Why did a file not get smaller?
It was already optimized. In that case the original is kept. Try WebP, a lower quality or a smaller size.