A single photo is a thirty-second job. Thirty photos — a gallery, a set of product shots, a folder of scanned receipts — is a genuinely different task, and doing them one at a time invites both wasted time and inconsistent results, where some images end up noticeably more compressed than their neighbours.
The Image Compressor accepts multiple files in one go, which is the practical way to handle a batch rather than repeating the same steps dozens of times.
Preparing a batch before you compress
- Sort out formats first. If your batch is a mix of JPG, PNG and other formats, decide whether they should all end up the same format, and convert any that need it before compressing.
- Remove anything that does not belong. Duplicate shots, accidental photos, or images already known to be unusable are easier to filter out before compressing thirty files than after.
- Group by purpose if the group is mixed. Product photos that need to look sharp and internal reference screenshots that just need to be small are better compressed separately, at different levels suited to each.
Steps
- Gather the images you want to compress into one folder.
- Open the Image Compressor and upload the whole batch.
- Choose one compression level that suits the whole group, rather than tuning each image individually.
- Download the results and spot-check a handful across the batch, not just the first one.
Why one consistent setting matters
Compressing each image individually with a slightly different setting — even with good intentions, adjusting each one “until it looks right” — produces a set where quality subtly varies from image to image. In a gallery or product grid, that inconsistency is more noticeable to a viewer than any single image being a little softer than ideal. Picking one setting that works reasonably well across the whole batch, even if it is not perfectly optimal for every individual photo, generally looks more professional as a finished set.
Handling a batch with very different content
If a batch mixes genuinely different kinds of images — photographs and screenshots, say, or colour photos and scanned black-and-white documents — a single compression setting rarely suits both well. Split the batch into groups by content type first, and run each group through separately at the level that suits it, rather than trying to find one setting that is an acceptable compromise for everything at once.
Naming and organising as you go
It is worth renaming files to something sensible before or after a bulk compression pass, especially if they arrived with generic camera-assigned names like IMG_4821.jpg. A batch of thirty images named consistently — by date, subject or sequence — is far easier to work with afterwards, whether you are uploading them to a website, attaching them to a report, or filing them for reference. Doing this once as part of the same session you compress in avoids a second, separate pass through the same files later.
Frequently asked questions
Is there a limit to how many images I can compress at once?
The tool handles a normal working batch comfortably; for an extremely large batch, splitting into a couple of smaller uploads is a reasonable approach if you run into any limit.
Can I use different compression levels within the same batch?
Run the batch through more than once at different levels if you specifically need different treatment for different images — grouping similar images together first makes this more practical.
Does batch compression take longer per image than doing it individually?
No, it processes each image the same way; the time saving comes from not repeating the upload-download cycle for every single file.
Will the file names be preserved?
Yes, the compressed files keep their original names so you can match them back to the source images easily.
Is it free and private?
Yes. No sign-up, no watermark, and files are removed from the server automatically about an hour after processing.