🗜️ Image Compressor
Compress JPEG, WebP & PNG images right in your browser. Batch compress, resize, preview and download — no upload, no signup.
Drop images here or click to select
Supports JPEG, PNG, WebP, BMP, GIF · Batch supported
FAQ
Are my images uploaded to a server?
No. All compression happens locally in your browser using the Canvas API. Your images never leave your device.
Which format should I choose?
JPEG is best for photos, WebP offers better compression with transparency support, and PNG is lossless (no quality loss) but typically larger.
Why is my PNG bigger after "compression"?
PNG is a lossless format, so re-encoding rarely reduces size unless you also resize. For photos, JPEG or WebP will compress far more.
Can I compress multiple images at once?
Yes. Drop or select multiple files, configure quality and dimensions once, and click "Compress All". Download each file individually or grab them all at once.
What does the quality slider do?
It controls the JPEG/WebP encoder quality (10–100). Lower values produce smaller files with more visual loss. PNG ignores the quality slider.