Compress Image
Make your pictures much smaller without making them look worse. Pick a preset, set the quality, or compress to an exact size like 200 KB, then compare before and after. Your pictures are processed in your browser and never uploaded.
Which preset should I use?
| Preset | What it does | Best for |
|---|---|---|
| Balanced | Quality 75%, keeps the format | Most pictures |
| Smallest file | Quality 60%, picks the smallest format, longest side 1,920 px, 64 PNG colours | When size matters most |
| Best quality | Quality 90%, PNG keeps all colours | Pictures you will edit or print |
| Under 1 MB | Finds the best quality that fits 1 MB | Email attachments and upload forms |
| Social media | Quality 80%, longest side 1,080 px | Posts and stories |
Compress to an exact size (200 KB, 1 MB and so on)
Many forms accept only files under a set size. Choose To a target size, type the limit and add your pictures. The tool tests several quality levels and keeps the highest one that still fits. If even the lowest good quality is too big, it can reduce the width and height step by step, as long as you leave Reduce the width and height too ticked. Each result tells you the quality used and whether the target was reached.
How image compression works
- JPG and WebP throw away detail your eye barely notices. The quality slider controls how much: lower quality means a smaller file.
- PNG cannot do that, so the tool reduces the number of colours (for example to 256), then saves the picture with a colour palette. This is the method used by TinyPNG and similar services, and it usually shrinks a PNG by 60% to 80%.
- Reducing the width and height saves a lot too. A photo 4,000 pixels wide shown on a page 800 pixels wide wastes most of its data.
- Smallest result (automatic) tries WebP, JPG and PNG and keeps the smallest file.
Tips for good results
- Start with Balanced, then press Compare and zoom to 100% to check faces, text and edges.
- Use JPG or WebP for photos and PNG for logos, screenshots and graphics with flat colours.
- Keep your originals: compressed JPG and WebP files lose detail you cannot get back.
- If a picture looks banded after colour reduction, tick Smooth gradients under More options or use more colours.
- Pictures that are already small or well compressed are returned unchanged, so a result is never bigger than the original.
Common size limits
| Where | Typical limit |
|---|---|
| Email attachments | About 20 to 25 MB in total |
| Online application forms | Often 1 to 5 MB per file |
| WordPress and most websites | Under 200 KB per picture is a good aim |
| Social media uploads | Usually handled for you, but smaller uploads are faster |
JPG, PNG and WebP compared
| Format | Best for | Transparency | File size |
|---|---|---|---|
| JPG | Photos and pictures with many colours | No | Small |
| PNG | Logos, screenshots, text and sharp graphics | Yes | Large for photos |
| WebP | Almost everything on the web | Yes | Smallest |
Your pictures stay private
This tool works entirely inside your web browser. Your pictures are read by your own device, changed there and saved from there. They are not uploaded to a server, so nothing is stored, shared or seen by anyone else, and the page keeps working if your connection drops after it has loaded.
How to use the Compress Image tool
- Drop your pictures on the box, click it to choose them, or paste one with Ctrl+V.
- Choose a preset such as Balanced or Under 1 MB, or set the quality yourself. To hit an exact size, choose To a target size and type, for example, 200 KB.
- Press Compare to check the result against the original, then press Download, or Download all for a ZIP.
Frequently asked questions
How do I compress an image to under 200 KB (or any size)?
Choose To a target size, type the size, for example 200 KB, and add your picture. The tool finds the highest quality that fits, and if needed also reduces the width and height a little. The result shows whether the target was reached.
How much can I reduce a picture's size?
Photos often shrink by 50% to 80% at around 75% quality with little visible change. Limiting the longest side to the size you really need, such as 1920 pixels, saves even more.
How is a PNG made smaller?
PNG cannot use a quality setting, so the tool reduces the number of colours, for example to 256, the same method that services like TinyPNG use. Most pictures look the same, and files often shrink by 60% to 80%. Choose All colours (lossless) under More options if you need every colour.
Which format gives the smallest file?
Choose Smallest result (automatic) and the tool tries WebP, JPG and PNG and keeps whichever is smallest. WebP is usually the smallest, JPG is best for photos on older systems, and PNG suits sharp graphics and screenshots.
Does compressing remove my photo's location and camera data?
Yes. Hidden data such as GPS location, camera model and date (EXIF) is not kept in the compressed pictures, which helps protect your privacy when you share them.
Can I see what compression did to my picture?
Yes. Press Compare to open a before and after view with a slider, and choose Zoom to 100% to inspect the real pixels.
Are my pictures uploaded?
No. The compression runs inside your browser, so your pictures stay on your device and nothing is stored on a server.