Bulk Image Compressor & WEBP Converter

Supports PNG, JPG, WEBP, and BMP. Processing runs 100% locally in your browser.

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What is Image Compressor?

Image Compressor is a privacy-first bulk image optimization utility that compresses PNG, JPG, WebP, and BMP images directly inside your web browser without uploading files to remote servers.

Features include custom quality compression sliders, target file size limits (e.g. compress to under 150 KB), format conversion to WebP/JPG, and batch ZIP archiving.

Using HTML5 Canvas and Blob compression algorithms, Image Compressor reduces photo file sizes by up to 80% while retaining high visual fidelity.

Privacy Guarantee: All image processing, compression, and ZIP archiving take place 100% locally on your machine. Your photos never leave your device.

Frequently Asked Questions

Are my private images uploaded to any server for compression?
No! Image compression runs entirely inside your browser memory using HTML5 Canvas rendering and Web APIs. Your images are never uploaded to any remote server.
What image formats are supported for compression and conversion?
Supports PNG, JPEG/JPG, WebP, and BMP formats. You can compress images in their native format or convert them directly to WebP for maximum web efficiency.
How does target file size compression (e.g. 150 KB) work?
Our iterative compression algorithm adjusts canvas quality parameters step-by-step until the output image blob size meets your specified KB target.
Can I compress multiple images simultaneously and download a ZIP?
Yes! You can drop dozens of images at once, apply batch compression settings, and click "Download All as ZIP" to get a clean archive.
Is there any file size limit or daily compression limit?
No! Because compression utilizes your own device hardware, there are zero limits on file count, file size, or daily usage.

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