The file is read in browser memory and a new output is created without overwriting the original.
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Converters
Image Compressor
Resizes PNG, JPG, or WebP in-browser and re-encodes it at the selected lossy quality. It reports actual before-and-after size because some settings can produce a larger file.
✓ Free✓ No account✓ In-browser
QUICK ANSWER
What does this tool do?
Adjust image quality and longest edge to produce a smaller WebP or JPG copy.
APPLICATION AND DECISION GUIDE
Image Compressor: method and usage
Resizes PNG, JPG, or WebP in-browser and re-encodes it at the selected lossy quality. It reports actual before-and-after size because some settings can produce a larger file.
local file or files of a supported type within the disclosed size limit Confirm the shape first with a small example containing no personal data.
a downloadable new file, size and format metrics, and disclosed processing limits
Practical steps
- Choose the source image; consider the EXIF cleaner first for sensitive metadata.
- Set WebP/JPG, longest edge, and quality, then run compression.
- Review actual size and visual quality before downloading the suitable copy.
preserving the original and checking that output opens correctly, retains expected pages or frames, size, and visible quality
Keep the source copy and verify output interoperability in the target application.
Suitable use cases
- Image optimization for Core Web Vitals
- Reducing email attachment size
- Resizing before mobile upload
Worked decision record
Reduce a product image's file size while preserving readable labels and necessary detail.
Process a test image with no personal data or location metadata at three quality levels, then compare each result with the original at the same zoom.
The new file is smaller, opens in the target format, and shows no unacceptable damage around fine text or edges; the size saving is visible.
If text becomes blurry, colours shift visibly, or the target application cannot open the file, choose a higher quality or different format and keep the original.
LEARN THE WORKFLOW
Guides for this tool
Create PDF from Images: Size, Order, and Readability Guide
Turn scans, receipts, and presentation images into one PDF with the right size and order.
Read guide →WebP vs PNG vs JPG: Image Format and Compression Guide
Choose the right image format for transparency, quality, file size, and Core Web Vitals.
Read guide →ABOUT THIS TOOL
Frequently asked questions
What input does Image Compressor accept?+
local file or files of a supported type within the disclosed size limit Process a test image with no personal data or location metadata at three quality levels, then compare each result with the original at the same zoom.
What does Image Compressor return?+
a downloadable new file, size and format metrics, and disclosed processing limits The new file is smaller, opens in the target format, and shows no unacceptable damage around fine text or edges; the size saving is visible.
How should I validate Image Compressor output?+
preserving the original and checking that output opens correctly, retains expected pages or frames, size, and visible quality If text becomes blurry, colours shift visibly, or the target application cannot open the file, choose a higher quality or different format and keep the original.
Does Image Compressor send or store input on a server?+
Tool input is processed in the active tab. Saving to the Workstation or transferring to another tool is a separate choice. Consider browser extensions and shared devices separately; the privacy page explains advertising and network connections.