Every tool, format guide, and optimization resource you need — in one place. From quick conversions to deep dives on file formats, we've got you covered.
All conversions run entirely in your browser — your images are never uploaded to a server. Each tool supports batch processing, so you can convert dozens of files at once.
Compress, resize, crop and manipulate images directly in your browser. No loss of privacy — files never leave your device.
Not sure which format to use? Here's a quick reference comparing the four major web image formats across the factors that matter most for performance and compatibility.
| Format | Compression | Transparency | Browser Support | Best For |
|---|---|---|---|---|
| AVIF Best | 50% smaller than JPG | ✅ Yes | Chrome, Firefox, Safari 16+ | All new web images |
| WebP Recommended | 30% smaller than JPG | ✅ Yes | All modern browsers | Web images, broad support |
| PNG | Lossless (larger files) | ✅ Yes | Universal | Logos, icons, screenshots |
| JPG Legacy | Good (lossy) | ❌ No | Universal | Photos (legacy systems) |
Deep-dive comparisons, optimization checklists, and technical guides to help you make the best decisions for your images — whether you're building a website, designing for print, or optimizing for speed.
Choosing the right image format is one of the highest-leverage decisions you can make for website performance. Images typically account for 50–70% of a webpage's total byte weight, so format selection directly affects load times, Core Web Vitals scores, and ultimately search rankings.
If you're displaying photos — product images, hero backgrounds, portraits — the priority is compression efficiency. AVIF is the best choice in 2026, delivering roughly 50% smaller files than JPEG at equivalent visual quality. WebP is the safe fallback for any browser that doesn't yet support AVIF, offering around 30% smaller files than JPEG. Use our JPG to AVIF converter or JPG to WebP converter to upgrade your existing photo library.
When your image has a transparent background, sharp edges, or large areas of flat color — logos, icons, UI elements — PNG remains the most compatible option. WebP in lossless mode can match PNG quality with smaller file sizes, and is supported by all modern browsers. AVIF also supports lossless compression and transparency, making it the best choice for next-gen deployments. See our PNG to WebP and PNG to AVIF tools.
Screenshots, slide exports, and images with legible text benefit from lossless compression to avoid ringing artifacts around sharp edges. Use PNG for universal support, or lossless WebP for a smaller file size. Avoid JPEG for any image where text sharpness matters — JPEG's lossy compression creates noticeable artifacts around high-contrast edges. Read our full guide on lossless vs lossy compression.
When you need to share images as documents or extract content from PDFs, format compatibility becomes the priority. JPEG and PNG are the safest choices as both are universally supported across all PDF viewers and office applications. Use our JPG to PDF or PDF to Image tools for quick document conversions.
All tools run entirely in your browser. Your images never leave your device.
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