Image compression reduces file size by removing unnecessary data while maintaining acceptable visual quality. Lossy compression (JPG, WebP, AVIF) removes fine detail for smaller files. Lossless compression (PNG, GIF) preserves all original data but offers less size reduction. This tool supports both methods across 5+ formats optimized for different use cases.

JPG/JPEG: Lossy compression, best for photos. PNG: Lossless, preserves transparency. WebP: Modern format, 25-35% better compression than JPG. AVIF: Newest format, 20-30% better than WebP but requires modern browsers. GIF: Lossless, supports animation. Each format has specific optimization strategies in this tool.

Yes! Use batch mode to upload multiple images sequentially and apply the same compression preset to all. Each image processes in about 5-10 seconds. Perfect for 10-100 image workflows. Upload folder, choose preset (Web, Social, etc.), and download all compressed images. Much faster than desktop tools for bulk operations.

JPG at quality 80: 60-70% reduction. WebP: 25-35% better than JPG. AVIF: 20-30% better than WebP. PNG lossless: 40-60% reduction. Results depend on original image complexity, resolution, and starting compression. Test your specific images using the preview feature.

(1) Thumbnail (50): Extreme compression for previews. (2) Social Media (70): Aggressive compression for upload limits. (3) Web (80): Balanced for blog, thumbnails, general web. (4) Print (90): High-quality for printed materials. (5) Archive (95): Minimal loss for long-term storage. Preview before downloading to confirm acceptable quality.

No. 100% of processing happens in your browser using Canvas APIs and JavaScript. Your images never leave your device - we don't log, store, or transmit anything. Works completely offline after the page loads. Perfect for sensitive images, client assets under NDA, medical photos, or internal-only content.

Yes! Use the 'Max Width' setting to scale images to a specific pixel width during compression. Example: input max-width 800px to fit images to exactly 800px wide. Height scales proportionally. Works with any starting resolution - 4K originals (4000x3000) compress significantly more when scaled to 800px width while maintaining quality.

Lossy (JPG, WebP, AVIF) removes data - smaller files but some quality loss. Imperceptible at quality 80+. Lossless (PNG, GIF) keeps all data - larger files but zero quality loss. Choose lossy for photos and web content, lossless for graphics, logos, screenshots requiring pixel-perfect clarity or transparency.

Select any image (JPG, PNG, GIF, etc.) and choose your target format from the 'Format' dropdown (WebP or AVIF). Click compress, and the tool converts + optimizes in one pass. WebP offers excellent compression with broad browser support (95%+). AVIF provides 20-30% better compression but requires modern browsers (Chrome 85+, Firefox 93+).

Yes. Check the 'Strip metadata/EXIF' option to remove all hidden data (GPS location, camera model, timestamps, software used) from JPG and PNG files. Reduces file size by 5-20% while preserving image quality. Important for privacy - prevents accidental location or device leakage before sharing images publicly on social media or via email.

Practical limit is browser memory (typically 2GB for modern browsers). Recommended: keep under 50MB for fast processing. Very large files (500MB+) may cause browser slowdown or crash on mobile devices. For production workflows processing GB-scale images, use command-line tools like ImageMagick. This tool optimized for 1-100MB typical use cases.

Yes! Instant real-time preview shows exactly how the compressed image will look with your current quality settings. Zoom in/out to inspect fine details, text legibility, edge clarity, and gradient smoothness. This preview uses the exact compression algorithm and quality level you'll download. Adjust quality slider and recompress if needed until preview looks perfect.

Yes! Click 'Copy to Clipboard' and the compressed image is copied as a PNG blob. Paste directly into Slack, email, Google Docs, Figma, or any app with image support. Much faster than downloading then re-uploading. Works on desktop Chrome/Firefox and mobile (iOS 14+, Android Chrome 76+).

Fully responsive - works perfectly on phones, tablets, and desktops. Touch-friendly buttons, readable fonts, and adaptive layouts. File upload works on iOS (Photos library/files app) and Android. Compression speed depends on phone CPU but remains responsive even on mid-range devices (iPhone 11+, Samsung S10+).

All modern browsers: Chrome 90+, Firefox 88+, Safari 14+, Edge 90+. Mobile: iOS Safari 14+, Android Chrome 90+. Features like WebP and AVIF require newer browser versions. Requires JavaScript enabled. Canvas API support required (supported in all modern browsers).

Absolutely. Perfect for production asset optimization in development pipelines, CMS integrations, and deployment workflows. Fast enough for real-time compression (< 5 seconds per image). DevOps teams use it for bulk asset optimization. QA teams compress screenshots before bugs. Designers prepare web assets. Photographers optimize portfolio images. E-commerce companies compress product photos.

PNG uses lossless compression - can't remove detail, only optimize encoding efficiency. Already-optimized PNGs compress minimally. For maximum size reduction from PNG originals: (1) convert to JPG (accepts visual loss), (2) use WebP or AVIF (modern lossy formats), (3) reduce color palette (fewer unique colors), (4) scale down image dimensions. Use this tool's format conversion feature for best results.