Image Compressor
Reduce PNG, JPG, and WebP file sizes up to 80% with configurable quality settings entirely in your browser.
Drop an image to compress
Client-side processing — your image never leaves your browser
Supports PNG, JPG, WebP, GIF up to 20 MB
How local image compression works
ShadTools loads your selected image file into browser memory, renders it onto an offscreen HTML5 canvas element, and re-exports the image buffer at your specified quality percentage.
Why compress web images?
- Faster Page Load Speed: Smaller image payloads load significantly faster on mobile networks, improving Core Web Vitals (LCP) and user retention.
- Better SEO Rankings: Google search algorithms favor fast-loading pages with optimized images.
- Lower Bandwidth Costs: Reducing image sizes saves hosting bandwidth and CDN data transfer fees.
Frequently Asked Questions
Are my personal photos uploaded to a remote server?+
Never. ShadTools processes images 100% locally using client-side HTML5 Canvas rendering in your browser. Your images never leave your local device memory.
What image formats are supported?+
You can upload and compress PNG, JPG/JPEG, and WebP images up to 20 MB in size.
How much file size reduction can I expect?+
Most photos and graphics achieve 40% to 80% file size reduction when compressed at 75%-85% quality settings.
Will compression visibly degrade my photo quality?+
At recommended quality levels (75%-85%), visual quality loss is imperceptible to the human eye while dramatically accelerating web page load times.