Bulk Compressor
Drag and drop multiple images to compress them all simultaneously in a batch.
About Bulk Compressor
Got a folder full of large photos? Use the Free Bulk Compressor. It's the Best Bulk Compressor because it leverages your computer's power to compress multiple images at once, saving you immense time.
Features
- Upload and process multiple images simultaneously
- Apply uniform compression settings to all files
- Visual progress bar for each individual image
- Download all compressed images as a single ZIP file
- Offline processing via HTML5 Canvas API
How to Use
- Drag and drop multiple images into the upload area.
- Adjust the global compression quality slider.
- Click "Compress All" to start the batch process.
- Once complete, click "Download ZIP" to get all files at once.
Frequently Asked Questions
How many images can I compress at once?
You can select dozens of images at once. However, because processing happens in your browser, selecting hundreds of huge photos might freeze your tab.
Can I compress a mix of JPGs and PNGs?
Yes, the tool handles different formats automatically and maintains the original file type for the output.
Will the file names change?
The tool preserves your original file names, usually appending a suffix like "-compressed" so you don't accidentally overwrite your originals.
Is my data secure?
Yes, the compression is executed entirely on your local machine.
How many images can I compress at once?
You can select dozens or even hundreds of images, limited only by your computer's RAM.
Will it download them as a ZIP?
Yes, once finished, it packages all compressed images into a convenient ZIP file.
Are my photos uploaded anywhere?
No, all compression happens locally inside your browser.
Is this a free bulk compressor?
Yes, this free bulk compressor handles unlimited batches.
Why use the best bulk compressor?
Because it saves massive amounts of time compared to doing it one-by-one.
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