Image Compressor
Compress JPG, PNG, WebP and GIF files directly in your browser — nothing uploaded to any server.
Smart Compress
Up to 80% smaller. JPG, PNG, WebP, GIF. All in your browser — nothing uploaded.
Convert to WebP
Google's next-gen format. 30% smaller than JPEG with same quality.
AI Rename
Gemini reads your image and generates an SEO-optimized filename + alt text.
Your images never leave your browser
All processing happens locally using your device's CPU. No uploads, no servers, no data retention. The only exception is AI Rename, which sends a thumbnail to Google Gemini for analysis.
Why use SammaPix to compress images?
Browser-based — 100% private
Compression happens entirely in your browser using JavaScript. Your images are never sent to any server.
Batch ZIP download
Process multiple images at once and download all compressed files as a single ZIP archive in one click.
JPG · PNG · WebP · GIF
Supports all major image formats. Compress JPEG, PNG, WebP, and GIF with adjustable quality settings.
How image compression works
SammaPix compresses images using the browser's native Canvas API combined with the browser-image-compression library. The process re-encodes the image at the quality level you choose (default 80%) producing a smaller file with imperceptible quality differences.
Unlike server-based tools, nothing leaves your browser. This means no privacy risk, no file size limits imposed by network bandwidth, and near-instant results.
When should you compress images?
- —Before uploading to your website or CMS to improve page speed
- —Before attaching to emails to reduce attachment size
- —Before sharing on social media for faster upload
- —For e-commerce product images to improve Core Web Vitals