Bulk Image Compress
Batch compress images into a ZIP.
🗜Bulk Image Compress
All processing happens locallyWhat this tool does
Bulk Image Compress is a Bulk Image Compress that returns results as soon as you pick a file; nothing leaves your machine., the image is processed entirely inside your browser and never uploaded anywhere, so your files stay private.
Download the result directly; multiple images are handled in turn and offered as a zip or one by one.
How to use it
- Paste or type your content into the input field at the top, or press the sample button to load demo data.
- Adjust the options below the input, such as output format, separators, letter case or precision.
- Press the main button to run the conversion. Results appear instantly in the output panel without a page reload.
- When the result looks right, use the copy button in the corner, or download it as a local file.
Tips and notes
Clean up stray spaces and line breaks before pasting for more accurate results.
FAQ
The ZIP structure is generated in JavaScript right in the browser in store mode with no re-compression, and no server involved.
75–85 is right for web images: visually near-lossless while roughly halving size. For print, use 90+ or keep PNG.
Yes. Compressed files keep their names, with the extension normalised to .jpg.
Yes. The tool is completely free with no usage limits, and you never need an account or a sign-in.
No. All processing runs locally in your browser, so the input never reaches a server and is never logged or stored.
Yes. The layout is mobile-first, so inputs and buttons stay comfortable on phones and tablets in both orientations.
Yes. A copy button in the output panel puts the result on your clipboard, and you can also download it as a text file.