Why compress images?
Modern phone cameras shoot 12-megapixel photos or more, and a single image can exceed 4 MB. That size slows down email, gets photos rejected by online forms and application portals, and makes websites load slowly — which hurts search rankings. Compression fixes all of this by cutting file size dramatically with a visual difference you'll barely notice.
How to compress your images
- Drop one or more images into the box, click to choose them, or paste from the clipboard.
- Adjust quality — 70–80% is usually the sweet spot.
- Choose a format: “Auto” turns PNGs into WebP and keeps photos as JPG.
- Set a maximum dimension if the image is larger than you need; scaling 4,000 px down to 1,920 px saves a lot.
- Click “Compress images”, then download each one or grab them all as a ZIP.
How compression works
The tool uses your browser's built-in image engine to re-encode the picture with smart lossy compression that removes details the human eye doesn't notice, such as tiny color variations. It can also scale down oversized dimensions, which is the biggest size saver. It will never give you a larger file — if an image is already well optimized, the original is kept.
Which format is best?
- JPG: best for photographs and supported everywhere.
- WebP: Google's modern format, about 25–35% smaller than JPG at the same quality, with transparency support. Ideal for websites.
- PNG: lossless, good for logos and screenshots with text, but larger.
Tips for website owners
- Keep article images under ~200 KB where possible — page speed is a Google ranking factor.
- Don't upload a 4,000 px image to display it in an 800 px column.
- Use Resize Image for exact sizes and Convert Image to switch to WebP.
Frequently Asked Questions
Will the image lose quality?
At 70–80% quality the difference is practically invisible on screen. Lower quality means a smaller file and a higher chance of minor artifacts.
How many images can I compress at once?
There is no fixed limit — compress dozens and download them all in a single ZIP.
Is PNG transparency preserved?
Yes, with WebP or PNG output. JPG does not support transparency, so the background is filled with white.
Is EXIF data such as GPS location removed?
Yes. Compressed images contain no EXIF data, which protects your privacy when sharing photos.
Are my images uploaded?
No. Processing happens entirely in your browser and your images never leave your device.
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