Bulk Image Compressor

Yes, though your browser does the work sequentially, one file at a time in a web worker. Keep the tab in the foreground while it grinds through, and if the gallery is enormous, split it into runs of around 100 files so ZIP assembly stays comfortable in memory.

The target max size applies per file, not to the batch total. Setting 1 MB means each photo is squeezed until it fits under roughly 1 MB, so a 200-file run aims for about 200 MB overall. Small files already under the target are barely touched.

With the format control left on original, each file keeps its own type and just gets recompressed. Choosing WEBP or JPG instead normalizes the whole batch to that format, which is usually what you want when the outputs feed one website.

Not here. The compression library runs entirely in your browser using a web worker, so the files never leave your device. That matters when the batch is client work you're not allowed to push through third-party servers.

Every processed file is renamed, for example compressed-IMG_2048.webp, so nothing can silently overwrite an original when you extract the ZIP into the same folder. The extension also updates to match whichever export format you selected.

Yes. Images are capped at 4096 px on the longest side during compression, so a 8000 px panorama will come out smaller in pixels as well as bytes. For most web galleries that ceiling is generous; for print masters, compress copies rather than originals.

Always. Drop a single representative image first, since one file downloads directly and shows you the result in seconds. Once the quality preset and target size look right on that sample, load the remaining files and reuse the exact same settings.

Yes. Drop the full set and the tool switches to queue mode, so you compress jpg online across every file with one shared quality preset and target size. It handles a mixed pile too, so you can compress jpeg image online in the same run, and each output keeps its own name with a compressed- prefix.

That's the whole idea. As a batch online jpg file compressor, it uses one recipe, your quality preset plus a target max size in MB, for the entire queue, so results stay consistent. When you compress jpeg file online in bulk here, the target size is per file, not for the ZIP total.

It is. The online photo compressor queues every file and works through them one at a time in a web worker, so you can compress picture online in bulk, a few hundred shots, without touching each one. Keep the tab in front while it runs and the whole batch lands as compressed-images.zip.

Speed and consistency. A single-file online pic compress means re-picking settings for every image; the batch online pic compressor locks one preset and one target size across the queue. Drop one pic and it downloads directly, drop many and they come back zipped together.

Yes, you compress image online free here with no account, no watermark, and no per-file charge, because everything runs in your browser. Since you compress image for free locally, a hundred-file batch costs nothing and never uploads a single photo.

No hard cap beyond your browser's memory, so you can compress multiple photos free in one queue. To compress photo size online free without stalling, split runs of much more than a few hundred files so the final ZIP assembles comfortably.

Set the quality preset to High and give the target size some room, then the tool trims file weight while keeping visible detail. To compress image online without losing quality you can spot, test one photo first, and if the sample holds up, run the same setting over the whole batch.

Yes. The bulk image compressor online loads its compression library once, then processes every file in your browser, so you can bulk reduce image size even offline after the page has opened. Nothing is sent to a server at any point.

Pick a target max size that matches your upload limit, then compress multiple images in one queue so every file lands under it. To reduce image size online bulk for the web, WEBP as the export format usually beats JPG at the same quality, and the whole set arrives zipped.

This tool compresses and can cap resolution at 4096 px on the longest side, but it isn't a full resizer. To compress and resize images online to exact dimensions, run the batch through the Bulk Image Resizer first, then compress the output here.