Compress Images Online
Reduce JPG, PNG, and WebP file size without a noticeable quality loss. Batch compress multiple images at once — all in your browser.
How to Compress Images
Choose Settings
Select your output format (Keep Original, JPG, or WebP) and adjust the quality slider. Lower quality = smaller file; higher quality = better image.
Drop Your Images
Drag and drop one or multiple image files onto the upload area. All processing happens instantly in your browser — no upload to any server.
Download Compressed Files
Download each compressed image individually, or grab all files at once in a single ZIP archive.
Frequently Asked Questions
How much can image compression reduce file size?
It depends on the original image and quality setting. At 80% quality, JPG images typically shrink 40–70%. Converting a PNG to WebP at 80% quality can reduce size by 60–80% with minimal visible difference.
What is the difference between JPG and WebP compression?
WebP is a modern format developed by Google that achieves significantly smaller file sizes than JPG at the same visual quality. WebP is supported in all modern browsers. Use JPG for maximum compatibility with older software.
Does compression affect image dimensions?
No. This tool only changes the file encoding quality — the pixel dimensions (width × height) stay exactly the same. Use the Resize Image tool to change dimensions.
Can I compress PNG files?
PNG is a lossless format, so the quality slider does not affect PNG files. To reduce PNG size, convert them to JPG or WebP using the "Convert to JPG" or "Convert to WebP" option.
Is there a file size limit?
No. All processing happens in your browser using the Canvas API. The only limit is your device's available memory. Files up to 50 MB are handled easily on modern hardware.
Are my images uploaded to a server?
No. Everything runs locally in your browser. Your images are never sent to PDFForge or any third party.