Will the image quality get worse?

Visually, the difference is usually negligible. We use advanced lossy compression to **reduce image size** significantly while keeping the photo looking sharp.

Is it safe? Do you upload my photos?

Absolutely. This is a **no-upload image compressor**. Since it runs offline using WebAssembly, your private photos are never uploaded to any server.

How many images can I compress at once?

Unlimited. Because we process locally on your device, you can **batch compress** 1000+ images at once without any limits or queues.

BulkPicTools

Bulk Image Compressor

The best free online bulk image compressor. Bulk reduce image size of JPG, PNG, and WebP files locally. Compress images to 200KB, 50KB, or any size without uploading.

Drag & Drop Images

JPG, PNG, WebP • Batch Compression

Smart Bulk Compression

Our intelligent algorithm automatically reduces image size while maintaining visual quality. Perfect for optimizing web images in bulk.

Bulk Processing

Compress hundreds of images at once. Drag and drop entire folders of JPGs or PNGs to process instantly in your browser.

No Upload Required

100% Private. Unlike TinyPNG or other tools, your photos never leave your device. All compression happens locally.

How to use

Upload Images

Select or drag your JPG, PNG, or WebP images into the compressor. You can upload up to 1000 files at once for batch processing.

Set Target Size

Choose a compression level (e.g., 80%) or target a specific file size (e.g., compress to 200KB) for your needs.

Download

Click 'Compress All' to reduce file sizes instantly. Download the optimized images individually or as a single ZIP file.

FAQ

BulkPicTools makes it easy. Simply upload your photos and adjust the 'Quality' slider or use our specific presets until the preview shows your desired file size (e.g., under 200KB).