Compress images
Shrink photos, screenshots and graphics in your browser, with resizing and a before/after view.
Drop files here
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Choose filesJPG · PNG · GIF · SVG · TIFF · WebP
Files never leave your device
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How to compress images
Add your files
Drop files on the box, paste them or choose them from your device. Nothing is uploaded.
Check the settings
The default preset suits most files. Change quality, size or format if you need a smaller file.
Download the result
Save each file or all of them as one ZIP. If a file cannot get smaller, you keep the original.
Image formats we compress
Pick the right format first
The biggest saving on an image often comes not from a compression setting but from storing the picture in the format that suits its content. Photographs and flat graphics behave completely differently:
| Content | Best format | Why |
|---|---|---|
| Photos from a phone or camera | JPG or WebP | Lossy compression hides losses in natural texture |
| Screenshots, logos, charts, text | PNG | Sharp edges and flat colors stay exact |
| Icons and illustrations from a vector editor | SVG | Sharp at any size, often only a few kilobytes |
| Short animations | GIF, animated WebP or video | GIF plays everywhere; the others are much smaller |
| Scans and print files | TIFF for archives, JPG or PNG for sharing | TIFF keeps everything; sharing needs a light copy |
A screenshot saved as JPEG gets blurry text and is often larger than a good PNG; a photo saved as PNG can be several times the size of a JPEG that looks the same. The output format menu in the tool lets you switch while you compress.
Pixels matter more than quality
File size grows with the number of pixels. Halving the width and the height leaves a quarter of the pixels, so the file typically shrinks far more than any quality slider can achieve on its own, and the picture still looks sharp wherever it is shown at that size. A few reference points:
- A full-width image on a laptop screen needs about 1600–1920 pixels across, or up to 2560–3840 on high-density displays.
- A photo shown in a chat or an email body rarely needs more than 1600 pixels on its long side.
- A profile picture or thumbnail needs 400–800 pixels.
- Phone cameras deliver 4000 pixels or more across, and 48- or 50-megapixel modes about twice that.
Set Resize (longest side) in the tool and the image is resized proportionally, never stretched. Then tune the quality: around 75 for JPEG and WebP is a sound default for photos.
Lossy, lossless and metadata
Lossless compression (PNG in Lossless mode, TIFF saved as Deflate TIFF) stores the same image in fewer bytes; SVG clean-up keeps the drawing and only rounds coordinates invisibly. Lossy compression (JPG, WebP and AVIF output, PNG in the default Smart mode) removes detail that is hard to see. The tool shows a before/after slider with zoom, so you can judge the loss on your own picture rather than trusting a number.
Photos also carry metadata: EXIF with the camera model, settings, date and often the GPS location, plus XMP and thumbnails. By default the image tools remove it. They keep a color profile other than plain sRGB (such as Display P3) and turn the photo upright first, so the picture still looks right. That protects your privacy when you post photos and saves a few kilobytes per file.
Many images at once
Drop a whole selection of mixed images: JPG, PNG, GIF, SVG, TIFF and WebP can go in one batch, and each file is processed with the settings for its type. Several files are compressed in parallel, using the processor cores of your device. When they are done, download them one by one or as a single ZIP. Changing a setting re-runs the batch, so you can try quality 70 and 80 and compare the totals in seconds.
The tool works on images up to 100 megapixels and 200 MB each; larger images need more memory than a browser tab is allowed to use, especially on phones.
Image compression questions
What is the best format for images on a website?
WebP for photos and most graphics, SVG for icons and logos drawn as vectors. Both are supported by all current browsers and are usually smaller than JPEG and PNG.
Does compressing an image reduce its quality?
Lossless modes do not change a single pixel. Lossy modes remove some detail, but at moderate settings the difference is not visible at normal viewing size.
Can I compress HEIC photos from an iPhone?
Most browsers cannot decode HEIC, so convert those photos to JPEG first. On the iPhone, Settings › Camera › Formats › Most Compatible makes the camera save JPEG, and Settings › Photos › Transfer to Mac or PC › Automatic converts photos to JPEG when you copy them to a computer.
Why is my compressed image the same size as before?
If no smaller version could be made with your settings, you get the original back instead of a larger copy. Try a smaller size or another output format.
Learn more
Need to fit an image under a specific limit? Our overview of file size limits lists email services and messengers. The how it works page explains how compression runs on your own device.