About the Bulk Image Compressor
Compressing photos one at a time is slow when you have a whole folder to prepare for a website, an online store or a client hand-off. This bulk image compressor takes dozens of JPG, PNG, WebP and AVIF files in a single upload, compresses them all with the same quality setting and returns one ZIP file, with the total size saving shown.
How to Use the Bulk Image Compressor
- Click the upload box and choose your files, or simply drag and drop it in.
- Adjust the available options to match what you need.
- Click the action button and let House of Convert do the work in seconds.
- Download your result instantly — no email, no account, no watermark.
Why Use the Bulk Image Compressor at House of Convert?
- Free forever — every tool on this site is free to use, with no hidden limits.
- Private by design — your file is processed for this request only and never stored on our servers.
- Fast — results are usually ready in a few seconds, even for larger files.
- No installation — works entirely in your browser, on desktop or mobile.
Frequently Asked Questions
How do I compress multiple images at once?
Select or drag all your images into the upload box, set the quality and click Compress. Every image is compressed and packed into one ZIP for download.
How many images can I compress in bulk?
There is no fixed limit on the number of images. Very large batches simply take a little longer to upload and process.
Can I mix JPG, PNG and WebP in one batch?
Yes. Each image is compressed in its own format, so a mixed folder comes back with the same mix of formats, only smaller.
How do I compress a whole folder of photos?
Open the folder in your file picker, press Ctrl+A (Cmd+A on Mac) to select every image and upload them together.
Do the file names stay the same?
Each file keeps its original name with “-compressed” added, so you can easily match the results to your originals.
What quality should I use for bulk compression?
A quality of 70–80 works well for most website and e-commerce images. Lower it for email attachments, raise it for photography portfolios.
How do I open the ZIP file?
Double-click it on Windows or Mac, or tap it in the Files app on iPhone and Android, to extract the compressed images.
Can I bulk compress on my phone?
Yes. Mobile browsers let you select multiple photos from your gallery at once and download the ZIP.
Will bulk compression reduce image dimensions?
No, only the file size changes. To make all images the same width as well, use the Bulk Image Resizer first.
Does the Bulk Image Compressor store my images?
No. The whole batch is processed in memory and discarded as soon as your ZIP is ready.