This free image compressor reduces JPG, PNG and WebP file sizes by re-encoding them at an optimised quality level, optionally converting to WebP and capping the width. Typical savings are 40–80% for phone photos. Images are processed on your device and never uploaded.
How to compress an image
- Click Choose images or drag photos onto the box. You can also paste a screenshot with Ctrl+V.
- Leave quality at 75% for the best balance, or lower it for an even smaller file. The result updates automatically.
- Check the new size and percentage saved, then press Download or Download all as ZIP.
What quality setting should I use?
For photos, a quality of 70–80% is the sweet spot: files shrink dramatically and the difference is very hard to see on a screen. Go down to 50–60% when you need the smallest possible file, for example for an email attachment or an upload form with a strict limit. Screenshots and graphics with text look best as PNG or WebP rather than low-quality JPG.
| Use | Format | Quality | Max width |
|---|---|---|---|
| Website photos | WebP | 75% | 1600–2000 px |
| Email and WhatsApp | JPG | 70% | 1280 px |
| Print or archive | JPG | 90% | Original |
| Logos and screenshots | PNG | 256 colours | Original |
How PNG compression works here
PNG files are lossless, so lowering a quality slider does nothing. Instead this tool reduces the PNG to an optimised palette of up to 256 colours (the same idea used by TinyPNG and pngquant). Logos, icons, charts and screenshots often shrink by 60–80% while keeping transparency. For colourful photos saved as PNG, switching the output format to JPG or WebP saves far more.
Why compress images?
Large images are the most common reason a web page loads slowly. Google uses page speed and Core Web Vitals (especially Largest Contentful Paint) as ranking signals, and visitors on mobile data leave slow pages. Smaller images also make email attachments, form uploads and cloud storage easier.
Is it private?
Yes. The compression happens with your browser’s built-in image encoder on your own device. Your photos are never sent to a server, so the tool is safe for personal documents and client work, and it keeps working once the page has loaded even if your connection drops.
Frequently asked questions
Does compressing an image reduce quality?
JPG and WebP compression is lossy, but at 70–85% quality the change is very hard to see. You can compare the result thumbnail before downloading and raise the quality if needed.
How much smaller will my image get?
Photos from phones and cameras usually shrink 40–80%. Images that were already compressed may only shrink a little; if the result would be bigger, the tool keeps your original.
Can I compress many images at once?
Yes. Add as many images as you like and download them one by one or together as a ZIP file.
Is there a file size limit?
There is no fixed limit because nothing is uploaded. Very large images (over about 50 megapixels) may be slow on older phones.
Does it remove EXIF data?
Yes. Re-encoding through the browser drops EXIF metadata such as camera model and GPS location, which also saves a few kilobytes.
Updated October 2026 · Built and tested by Sharjeel Tahir · How our tools are tested