Compress Image Online Free
Reduce image file sizes while preserving visual quality, entirely in your browser. Instead of separate pages for every file-size target or format, this workspace lets you choose the target, compare JPEG, WebP, AVIF, and PNG, and inspect the result before exporting. Your images never leave your device.
Choose the output format before changing quality
The format often changes file size more than a few points on the quality slider. Pick the format that matches the image, then use fit-to-size only when the destination has a hard limit.
| Output | Use it for | Transparency | Practical tradeoff |
|---|---|---|---|
| JPEG | Photographs that must open everywhere | No | Small and universal, but repeated saves add artifacts |
| WebP | Most website images and mixed batches | Yes | Strong default balance of size, quality, and browser support |
| AVIF | Photographs where minimum size matters | Yes | Often smallest, but slower to encode and less convenient in older apps |
| PNG | Screenshots, text, diagrams, and lossless transparency | Yes | Preserves exact pixels but is usually large for photographs |
Start with a preset
50 KBSmall forms, avatars, and strict upload portals.100 KBThumbnails, lightweight listings, and email previews.200 KBBlog images and normal email-embedded images.500 KBHero images, portfolios, and detailed product photos.1 MBLarge high-detail images with a moderate upload cap.2 MBApplication portals and services with a common 2 MB limit.
Features
- Quality slider: drag to balance file size and visual quality with instant feedback.
- Fit-to-size: set a maximum file size (e.g., 100 KB, 500 KB) and FastEdit finds the optimal quality level.
- Batch processing: drop dozens of images and compress them all with the same settings.
- Side-by-side compare: view the original and compressed image side by side to judge quality.
- Multiple output formats: compress as JPEG, PNG, WebP, or AVIF. Switching formats alone often reduces size.
- No daily caps: no account required, and the practical limit is your device rather than a server quota.
How It Works
01
Load images here
Use the file drop at the top of this page. It opens the compressor with your files already loaded; mobile can handle lighter jobs.
02
Drop your images
Drag and drop one or more images. All files stay on your device.
03
Adjust quality
Use the quality slider or fit-to-size to set your compression target.
04
Compare
Use the side-by-side view to verify the compressed image looks acceptable.
05
Export
Download your compressed images. For batches, all files are processed and available for download.
Make the edit, check the result, keep the file on your device.
Open Compress Image