Large images are slow to upload, email and load on websites. Compressing an image reduces its file size while keeping it looking sharp, so it is easier to share everywhere.
Compression runs entirely in your browser with an adjustable quality control, so your images are never uploaded and stay private. It is free with no watermark.
How to use the Compress Image
- Choose an image or drop it in.
- Adjust the quality until the size and look are right.
- Download the smaller image - no signup, no watermark.
How much can you compress an image?
Photos usually compress 60 to 80 percent with no visible difference, because compression removes detail the eye cannot see at normal viewing size. A 5 MB phone photo typically lands between 500 KB and 1 MB at quality 80, which is right for websites, forms and email. Pushing quality lower keeps shrinking the file but artifacts appear around edges and in smooth areas like skies.
Hitting a target size like 100 KB or 200 KB
Many upload forms enforce hard limits such as 100 KB for a passport photo or 200 KB for a document. Two levers get you there: lower the quality setting, and if that is not enough, reduce the pixel dimensions, since a 4000 pixel wide photo has far more data than a form will ever display. Resizing to 1200 or 1600 pixels wide before compressing usually reaches even strict limits with good quality.
Common uses
- Meeting size limits on job portals, visa forms and government uploads
- Speeding up websites by shrinking hero and product images
- Sending photo batches over slow connections
- Reducing phone backup and storage usage
Compression runs in your browser, so private photos and documents are never uploaded to a server.
Frequently asked questions
Is the image compressor free?
Yes, completely free with no signup or watermark.
Are my images uploaded to a server?
No. Compression happens entirely in your browser, so your images never leave your device.
Will compressing reduce quality?
You stay in control with the quality setting and can pick the balance of size and clarity you want.
Which formats are supported?
Common image formats including JPG, PNG and WebP.