How to compress images
- Add your photos. JPG, PNG, WebP and iPhone HEIC are supported, in batches.
- Set the quality. 70–80% gives big savings with no visible difference for most photos.
- Choose the output. Keep the original format, or pick WebP for the smallest files.
- Optionally set a maximum width, such as 1920 pixels, to shrink very large camera photos.
- Click Compress images and see exactly how much space you saved.
How much smaller will my photos be?
A typical 4 MB phone photo usually drops to 300–800 KB at 75% quality, a saving of 80–90%. Adding a 1920-pixel width limit often brings it under 400 KB. Converting to WebP saves another 25–35% compared with JPG at the same visual quality.
Example: a website gallery
Twenty product photos straight from a camera total 96 MB. With 75% quality, WebP output and a 1600-pixel limit they shrink to about 4 MB in total, so your pages load fast and rank better on Google.
Lossy and lossless compression
Lossy formats (JPG, WebP) throw away detail the eye barely notices, which gives the biggest savings. Lossless formats (PNG) keep every pixel. If you keep PNG as the output, the tool will not reduce quality; to make a PNG much smaller, convert it to WebP or JPG.
Tips
- For email, 1600–2000 pixels wide is plenty.
- For websites, use WebP and the width your layout actually shows.
- For printing, keep full size and quality of 85% or higher.
- Need exact dimensions? Use Resize Image.
Frequently asked questions
Are my photos uploaded to a server?
No. Compression happens in your browser; your photos never leave your device.
Is location data (EXIF) removed?
Yes. Re-encoded images do not keep EXIF metadata such as GPS location, which is good for privacy when you share photos.
Why did one file not get smaller?
If an image is already well compressed, re-saving it could make it bigger. In that case PDF Free keeps your original file.
Can I compress many images at once?
Yes. Add as many as you like and download them all as a ZIP.
More free tools
Last reviewed: 2026-11-08. Tools are provided as-is. Keep a copy of important originals. See our disclaimer.