Batch Compress Images
Shrink many images at once in your browser. Pick a quality level, see the real savings per file.
Click or drag images here
Supports JPG, PNG, WEBP
.png, .jpg, .jpeg, .webp
Bulk Image Compressor
Compress whole folders of images at once, directly in your browser. Each file is re-encoded at the quality you choose and the result shows the exact size saved, file by file. Nothing is uploaded: the images never leave your device.
Key Features
Real measured savings
Every file shows its size before and after, so you see exactly what you gained.
Three quality presets
Light, balanced or strong compression, tuned for photos and web images.
Private by construction
Compression runs locally on your device. No upload, no queue, no account.
How to Compress Images
Select Files
Choose the images you want to shrink from your device.
Pick a preset
Light keeps maximum quality; strong produces the smallest files.
Choose the output
JPG for photos and universal support, WEBP for smaller modern files.
Compress
Click 'Compress & Download All' and save the results, zipped if there are several.
FAQ
Why did a PNG get bigger?
PNG cannot be re-encoded with a quality factor in the browser, so compressing means converting to JPG or WEBP. On tiny graphics that occasionally grows the file: the per-file percentage tells you immediately.
Does compression remove transparency?
JPG has no transparency, so transparent areas are flattened onto white. Choose WEBP to keep the alpha channel.
Is there a file size limit?
Processing is local, so the practical limit is your device's memory, not a server quota.