This image compressor reduces file size without uploading your pictures anywhere. Choose a quality level, optionally cap the width and pick an output format; the compressed size and saving appear before you download.
Your data is processed locally in your browser and is not uploaded to our server.
or drop an image here
JPEG · PNG · WebP · GIF · max 20 MB
PNG is lossless, so the quality slider has no effect.
Compressed bytes = encoder(image, quality)
Quality controls how much detail the encoder keeps. Lower values produce smaller files with more visible artifacts; 70–85 is a good starting range for photographs.
Target width = min(original width, maximum width)
When a maximum width is set, the image is scaled proportionally before encoding. Fewer pixels usually reduce the file size more than a small quality change.
A 4000-pixel-wide photo is too heavy for a web page.
The result keeps the aspect ratio and is usually a fraction of the original size, with little visible difference at screen sizes.
A PNG screenshot contains flat colours and text.
PNG ignores the quality slider, but resizing and cropping reduce its size. For photos, WebP or JPEG is usually smaller.
PNG is lossless, so the quality slider does not apply. Choose WebP or JPEG when you need substantial savings on photographic images.
Only the first frame is processed. For animation, use a dedicated GIF tool or keep the original file.
Re-encoding a tiny image can make it larger. Compare the result size and keep the original if compression does not help.
No. Decoding, resizing and encoding happen in your browser; the file never leaves your device.
WebP usually gives the best size for photos and supports transparency. JPEG is universally compatible. PNG is best for screenshots, diagrams and sharp text.
Re-encoding can change compression settings. If the result is larger, keep the original or convert to WebP/JPEG when transparency is not required.
Canvas re-encoding produces a new image without most metadata, including EXIF. That is useful for privacy but removes camera details.
Images up to 20 MB are accepted. Larger files may exceed browser memory limits, especially on mobile devices.