Browser Image Compressor
Compress JPG, PNG, and WebP images locally with customizable quality sliders and instant file size savings preview.
100% Local Processing: All calculations and conversions run entirely inside your browser. No private data is ever uploaded or recorded.
Click or drop an image here (JPG, PNG, WebP)100% Client-side. No images are uploaded to any server.
How to Use Browser Image Compressor
1
Enter Your Input
Paste, upload, or type your input directly into the editor or controls above.
2
Instant Processing
Computed 100% locally in your browser with fast execution and complete privacy guarantee.
3
Copy or Download
Quickly copy the processed output to your clipboard or download files with one click.
Technical Specifications & Standards
Architecture Client-Side Web Crypto / V8
Data Privacy 100% In-Browser (Zero Transfer)
Compliance W3C / RFC Standards
Availability Free Forever (Client-Side)
Recommended In-Depth Technical Guide
How WebP Image Compression Boosts Core Web Vitals and SEO
Learn how modern WebP compression cuts image payloads by up to 60% without visible loss in quality, improving LCP and user retention.
Frequently Asked Questions
Are my photos uploaded to any server?
No, compression uses HTML5 Canvas and Web APIs completely offline on your device.