How do I compress a JPG file without losing quality?
To compress a JPG, open FixDoks's Compress JPEG tool, add your photos and set a quality level around 70 percent, or switch to target size and type a KB limit. The tool searches for the highest quality that fits and downloads the smaller files. Compression happens in your browser, so nothing is uploaded.
Compress JPEG at a glance
| Input | JPG or JPEG |
|---|---|
| Output | Compressed JPG |
| Processing | In your browser; your files are not uploaded |
| Price | Free, no watermark |
| Download | Free Google sign-in |
| Works on | Chrome, Edge, Safari and Firefox on Windows, Mac, Android and iPhone |
How to use Compress JPEG
- Click Select images and choose your JPG or JPEG photos.
- Leave quality at about 70% for web and WhatsApp use, or switch to By target size and type a size in KB.
- Click Compress JPEG and download the smaller files, singly or as a ZIP.
Why JPG files get so large
Phone cameras save JPG photos at very high quality, often 90% or more, and at 12 to 50 megapixels. That is great for editing and printing large, but it is wasteful for sending on WhatsApp, attaching to email or putting on a website. A JPG saved at 70 to 80% quality is usually indistinguishable on a screen and a fraction of the size.
What the quality setting actually changes
JPG splits the picture into small 8 by 8 pixel blocks and stores each block as a set of patterns, from broad shading to fine texture. Lower quality throws away more of the fine texture patterns, which are the ones your eye is least sensitive to. Push it too far and the blocks start to show, especially around text, sharp edges and smooth skies. That is why the slider stops at 10%.
Recommended settings
| Use | Quality |
|---|---|
| Website images, blog posts | 65 to 75% |
| WhatsApp, email, social media | 60 to 70% |
| Printing at home or a photo lab | 85 to 92% |
| Archive copy you might edit later | Keep the original |
Re-compressing a JPG
Every time a JPG is saved again with lossy settings, a little more detail is lost. Compressing once from the original is best. If the tool finds that re-compressing would not make the file smaller, it gives you back your original unchanged.
Need an exact size?
Government portals, job sites and exam forms often set a hard limit like 50 KB or 100 KB. Switch to By target size and the tool will find the best quality under that limit automatically. For forms that also have a minimum size, use the govt form photo tools.
Resize before you compress
The biggest savings often come from pixel size rather than quality. A 4000 pixel wide photo shown in a 1200 pixel wide blog column wastes most of its data. Scale it to the size it will actually be displayed with the image resizer, then compress it here at 75 to 80%. The result is usually sharper than a full size photo squeezed to the same file size.
Progressive loading and metadata
The files created here are standard baseline JPGs that open in every program, from old Windows photo viewers to government upload portals. Camera metadata such as the phone model and GPS position is not carried over into the compressed copy, which is good for privacy. If you need to keep the date taken for sorting photos in an album app, keep your originals as the archive and share the compressed copies.