Image Compressor
Compress JPG, PNG, and WebP images directly in your browser. Reduce image file size while keeping quality under your control.
Drop your image here or choose a file. Accepts JPEG, PNG, and WebP.
You can also paste an image with Ctrl+V / Cmd+V.
Your images are processed directly in your browser — they are never uploaded to a server.
Original Image
Compression Settings
PNG is lossless — re-encoding through the browser can sometimes produce a larger file than the original, especially if it was already well-optimized. WebP or JPEG will usually compress further.
⚠️ JPEG doesn't support transparency. If this image has transparent areas, they'll be filled with white.
Approximate — quality is adjusted to get close, not guaranteed exact.
Original
Compressed
Saved
Compressed Image
⚠️ The compressed file is larger than the original. This can happen when a PNG was already efficiently encoded — the browser's PNG encoder doesn't always match a dedicated image optimizer. Try WebP or JPEG for a smaller file, or just keep the original below.
About Image Compressor
This tool reduces an image file's size while giving you control over the quality trade-off, entirely in your browser. Different images compress differently — a photo with lots of detail may shrink a lot at a given quality, while a simple graphic or an already-optimized image may not shrink much further.
Supported formats: JPEG, PNG, and WebP — chosen because every modern browser can both read and write them reliably. JPEG and WebP support an adjustable quality level; PNG is lossless, so its file size depends mainly on the image content rather than a quality setting.
Frequently asked questions
Do my images get uploaded anywhere?+
No — compression happens entirely in your browser using the canvas and image-decoding APIs already built into it. Your image is never sent to a server.
Which formats are supported?+
JPEG, PNG, and WebP, for both input and output — the formats every modern browser can reliably both decode and encode. You can also convert between them (e.g. compress a PNG down to a JPEG or WebP).
Will every image get much smaller?+
It depends on the image. A detailed photo often compresses a lot; a PNG that's already optimized, or a simple graphic, may only shrink a little — PNG in particular is lossless, so its size depends mainly on the image content rather than a quality slider.
What happens to transparency if I convert to JPEG?+
JPEG doesn't support transparency, so any transparent areas are filled with white before compressing. PNG and WebP output both keep transparency intact.
Can I target a specific file size?+
Yes, optionally — enter a target size in KB and the tool searches for a quality level that lands close to it. It's an approximation, not a guarantee, and won't push quality down excessively to hit an unreasonable target.
Will a photo taken on my phone come out sideways?+
No — the tool reads the image’s orientation data and corrects it automatically, the same way opening the photo normally would.
Is this tool free?+
Yes, completely free with no sign-up.
Related tools
Image
YouTube Thumbnail Downloader
Paste a YouTube link and instantly get every available thumbnail — Max, HD, SD, and more — ready to preview, copy, or download.
Image
Image Resizer
Resize JPG, PNG, and WebP images directly in your browser, by exact dimensions or by percentage, with the aspect ratio locked or free.
Image
Image Converter
Convert images between JPG, PNG, and WebP directly in your browser — in either direction, with quality control and transparency handled correctly.
Image
Image Cropper
Crop JPG, PNG, and WebP images directly in your browser — drag to select the exact area to keep, or enter precise pixel values, with optional aspect ratio locking.