Image Compressor & Optimizer: What It Does
Reduces file size of JPEG, PNG, and WebP images directly in your browser using the HTML5 Canvas API. It balances visual fidelity against compression ratio and compares before-and-after file weights.
Example
2.4 MB JPEG image480 KB optimized WebP imageRe-encodes image raster data into optimized WebP format with 80% quality setting.
How to Use
- Drop one or more images into the upload area.
- Adjust the quality slider and select target output format (JPEG, PNG, or WebP).
- Preview image quality side by side and download the compressed files.
Limitations
- Very large images (e.g. 50+ megapixels) may exceed canvas buffer limits on mobile devices.
- Lossless PNG compression yields smaller savings compared to lossy WebP conversion.
Frequently Asked Questions
Why does WebP generally compress better than JPEG?
WebP uses predictive coding and advanced entropy algorithms to compress photographic images around 25-34% smaller than JPEG at equivalent visual quality.
Does compressing images strip EXIF metadata?
Yes. Re-encoding image data through browser canvas automatically strips EXIF location and camera tags, reducing file size and enhancing privacy.
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