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Batch Image Compressor
Shrink several images at once — all processed locally on your device.
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How to Use This Tool
Select one or more images, set quality and max width, then compress. Each image gets its own result row with an individual download link.
- Select multiple files with Ctrl/Cmd-click or drag a group in.
- Lower quality shrinks files more; 70–80% usually looks lossless on screen.
- Your files are never uploaded — everything runs in the browser.
Frequently Asked Questions
Is there a limit on how many images I can compress?
No hard limit, but very large batches take longer. Processing happens on your device, so the browser handles everything locally.
Are my images uploaded to a server?
No. The Canvas API processes every image on your device — nothing is transmitted.
Does the batch output stay in the original format?
Yes. JPG stays JPG, PNG stays PNG, and WebP stays WebP, so transparency is preserved.
Can I download everything as one file?
No — use the individual download links on each row. This keeps the tool simple and fully local.
Practical Example
You export 10 product photos at 4000×3000 (~3 MB each = ~30 MB total):
- Set max width to 1920 and quality to 75%.
- Each file typically drops to 300–500 KB.
- Total savings of roughly 80%+, ready for web hosting or email.
What Your Results Mean
- Savings — percentage reduction from the original file size.
- Max width — longest edge after scaling; height follows proportionally.
- Quality — compression level for lossy formats; 100 keeps the most detail.
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