How to Compress an Image for Free (Reduce Photo Size)
3 min read
Upload forms, websites, and email all have size limits, and a modern phone photo can easily be 5 MB or more. Compressing an image cuts that down dramatically while keeping it looking good to the eye.
Here is how to compress an image for free in your browser, so your photos are never uploaded to a stranger's server.
Step by step
- 1Open the compressor
Open the Image Compressor and choose your photo. It loads locally - nothing is uploaded.
- 2Adjust the quality
Lower the quality setting to shrink the file. Most images look identical to the eye even at 70-80% quality, which can cut the size by more than half.
- 3Compare original vs compressed
Check the before-and-after file size so you keep the right balance of quality and size.
- 4Download the smaller image
Save the compressed photo, ready to upload, email, or post.
Tips
- JPG is best for photos; PNG is best for graphics and screenshots with sharp edges or transparency.
- Resizing the dimensions (for example to 1600 px wide) on top of compressing saves even more for web use.
- Keep your original full-quality file - compression discards detail and cannot be fully undone.
Frequently asked questions
Will the photo look worse?
Usually not noticeably. A small quality reduction removes data the eye barely registers while cutting the file size a lot.
JPG or PNG - which should I use?
Use JPG for photographs and PNG for logos, screenshots, and images that need a transparent background or crisp text.
Is my image private?
Yes. Compression happens entirely in your browser, so your photo is never sent to a server.