Prepare images before upload
Compress screenshots, product photos and content graphics before adding them to CMS pages, storefronts or landing pages.
Free Tool
Image Compressor / Optimizer for Smarter Website Decisions
Reduce image file sizes before uploading to websites, stores and landing pages without sending private images to a server.
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What It Checks
Focus Areas for This Tool
These are the signals I would review manually when deciding what needs fixing first.
01
Image upload
Review this area to understand whether it is helping or hurting growth.
02
Quality and format controls
Review this area to understand whether it is helping or hurting growth.
03
Resize options
Review this area to understand whether it is helping or hurting growth.
04
File size preview
Review this area to understand whether it is helping or hurting growth.
Optimization Guide
How This Tool Helps Before Publishing
A little context makes the numbers more useful. Use these notes to understand where this tool fits inside content, SEO and website reviews.
Keep optimization local
The tool uses browser canvas output, so selected images are processed on your device instead of being uploaded to a server.
Balance quality and size
JPEG and WebP output includes a quality slider, while the width control can downscale oversized images for faster web delivery.
Check savings before download
Review original size, optimized size, bytes saved and output dimensions before saving the compressed image.
FAQs
Frequently Asked Questions
Quick answers about how this tool works and when to use it.
No. Compression runs locally in your browser with canvas, and the optimized file is downloaded from your device.
It can export browser-readable source images as JPEG, WebP or PNG, depending on the output option you choose.
JPEG does not support transparency, so transparent areas are flattened onto a white background during compression.
Yes. Use the max-width control to keep the original size or downscale wide images to 800, 1200, 1600 or 2400 pixels.