How bulk compress works
Add every photo
Drag in a whole folder's worth of images at once, or tap to select multiple files.
Set one target size
Choose a preset or a custom KB size and format — it's applied to every photo in the batch.
Compress all, download all
Watch each image finish in place, then download individually or as one .zip file — built on your device.
Frequently asked questions
How many images can I compress at once?
As many as your device's memory comfortably allows — there's no artificial limit set by this tool. Very large batches (hundreds of high-resolution photos) may be slower on older devices, since everything runs on your own hardware rather than a server.
Does the .zip file get uploaded anywhere?
No. The .zip is assembled locally in your browser from the images already compressed on your device, then handed straight to your browser's normal download.
Can different images use different target sizes?
Not in this version — one target size and format applies to the whole batch. For a single photo with its own custom size, use the regular compressor instead.