Large images slow down websites, bounce off email size limits, and eat storage. Compressing them keeps the picture looking good while cutting the file size dramatically — and you can do it free securely, without storing your photos anywhere.
Pick or drop a JPG, PNG or WebP. It loads instantly and is never stored.
JPG for photos, WebP for the smallest size, or PNG when you need transparency.
Drag the quality slider and set an optional max width — the preview shows the new file size live.
Save the optimised image, ready to upload, email or post.
Lossy vs lossless — and which format
JPG and WebP use lossy compression: they discard detail you’re unlikely to notice to shrink the file, which is perfect for photos. PNG is lossless and best for graphics, logos and anything with transparency. WebP usually gives the smallest file at the same quality, so it’s a great default for the web.
How small should you go?
- Web images: aim for under 200 KB where you can.
- Email attachments: keep the whole set within the provider’s limit.
- Resize the dimensions too — a 4000px photo displayed at 800px is wasted weight.
Tip: Compression and resizing stack. Set a sensible max width and a quality around 70–80% to cut most images by 80% or more with little visible difference.
Compress your image now
Shrink JPG, PNG or WebP files in seconds — free, private, no watermark.
Open the Image Compressor tool →Frequently Asked Questions
Is my image uploaded to a server?
No. Compression happens securely, so your image is never stored.
Which formats are supported?
Load JPG, PNG and WebP, and export to JPG, WebP or PNG.
Will quality drop noticeably?
At 70–80% quality most photos look identical while the file shrinks dramatically; lower it further only if you need a tiny file.
Does it work on mobile?
Yes — it’s lightweight and works on phones, tablets and desktops.