Compress Images Online — Free
Reduce image file sizes by up to 80% without visible quality loss. Powered by advanced compression algorithms, everything runs in your browser — your files are never uploaded.
Compress JPEG
Reduce JPEG file size up to 80% with our advanced compression engine. Free, private — runs entirely in your browser.
Compress PNG
Optimize PNG files without losing quality. Free, no upload — 100% in your browser.
Compress WebP
Reduce WebP file size while maintaining quality. Free, private, browser-based.
Compress GIF
Reduce GIF file size while keeping animation quality. Free, private, browser-based.
Compress PDF
Reduce PDF file size by re-encoding images. Free, instant, browser-based.
Why Compress Images?
Large images slow down websites, eat storage, and exceed email attachment limits. Image compression reduces file size while preserving visual quality — critical for web performance, SEO, and user experience.
Vizua uses advanced compression algorithms for JPEG files and optimized encoders for PNG and WebP. These produce significantly smaller files than standard encoders at the same quality level.
JPEG vs PNG vs WebP Compression
- JPEG — Best for photographs. Lossy compression with adjustable quality. Our optimized encoder typically saves 30-80% vs the original.
- PNG — Best for graphics, screenshots, and images with transparency. Lossless compression (or lossy with palette reduction) — typically 20-60% savings.
- WebP — Google's modern format. Supports both lossy and lossless compression. Usually 25-35% smaller than equivalent JPEG at the same quality.
How Vizua Compression Works
When you drop an image into Vizua, it's processed entirely in your browser using modern browser technologies. Your file never leaves your device — there's no upload, no server, no waiting. The optimized codec runs at near-native speed directly in the browser.
You can adjust the quality slider to find the perfect balance between file size and visual quality. For most uses, 75-85% quality produces files that look identical to the original while being 40-70% smaller.
Batch Compression
All three compression tools support batch processing. Drop multiple files at once, and Vizua compresses them all with the same settings. Download individually or as a ZIP archive — no limit on the number of files.
100% Private
Unlike cloud-based compressors that upload your images to their servers, Vizua processes everything locally. Your photos, documents, and sensitive images never leave your device. You can even disconnect from the internet and keep compressing.