Image guides & tutorials

Master image formats, web optimization and best practices for every platform. All our guides are free, updated for 2026.

Image Formats

Web Image Formats: JPEG, PNG, WebP, AVIF, SVG. Complete Guide

Understanding web image formats in 2026: JPEG, PNG, WebP, AVIF, GIF, SVG. When to use each format for best performance.

JPEG vs PNG: Which to Choose for Your Project?

JPEG or PNG: technical differences and use cases. Complete comparison to choose the right image format.

What is AVIF? Complete Guide 2026

AVIF: the future image format. 50% lighter than JPEG, HDR, transparency. Browser support, use cases, and how to use it now.

SVG for the Web: Complete Vector Images Guide

Everything about SVG: when to use it, inline vs img, SVGO optimization, animations, accessibility. Practical guide for web developers.

HEIC Format: Everything You Need to Know (and How to Convert)

HEIC: Apple's photo format, 2× lighter than JPEG. Why it doesn't open everywhere and how to convert HEIC to JPG easily.

Web Optimization

Web Optimization

Optimize Website Images: Complete 2026 Guide

How to optimize images for the web: formats, compression, lazy loading, CDN, Core Web Vitals. Complete performance guide.

Web Optimization

Image Lazy Loading: Complete Guide and Best Practices

How to implement image lazy loading in HTML, JavaScript and IntersectionObserver. Improve load time and Core Web Vitals.

Web Optimization

Images and Core Web Vitals: Optimize LCP, CLS and FID

How images impact your Google Core Web Vitals (LCP, CLS). Concrete optimizations to improve your PageSpeed score and SEO.

Web Optimization

Image CDN 2026: Which Service to Choose? Full Comparison

Image CDN comparison 2026: Cloudflare, Cloudinary, ImageKit, imgix, Bunny.net. Features, pricing and use cases for each service.

Web Optimization

Responsive Images with srcset and sizes: Technical Guide

Master srcset, sizes and the HTML picture element to serve the right image per screen. Practical examples and common mistakes.

Compression

Image Compression: Lossy vs Lossless Explained

Differences between lossy and lossless compression. When to choose JPEG, PNG, WebP or AVIF for your use case.

Compress Images Without Quality Loss: 2026 Techniques

How to compress images without visible degradation: lossless compression, metadata optimization, free tools and automation.

Reduce Animated GIF Size: Techniques and Alternatives

How to reduce animated GIF file size: color palette, FPS, dimensions, lossy GIF. And when to replace GIF with WebP or MP4.

Optimize Images for Email: Complete Guide

Email images: recommended sizes, formats (JPEG vs PNG), Outlook and Gmail compatibility, animated GIFs, alt text. Full checklist.

WebP vs JPEG Compression: Data-Backed Comparison

Is WebP really 30% lighter than JPEG? Technical analysis with real numbers, use cases and migration strategy to WebP.

Social Media

Social Media Image Sizes 2026: Complete Guide

All social media image dimensions for Instagram, Facebook, YouTube, LinkedIn, TikTok in 2026. Updated reference table.

Instagram Image Dimensions 2026: Complete Guide

All Instagram image sizes in 2026: square, landscape, portrait, Stories, Reels, profile, carousel. Updated reference table.

Facebook Image Dimensions 2026: Complete Guide

All Facebook image sizes in 2026: cover, profile, post, Story, event, advertising. Updated reference table.

YouTube Banner Size and Thumbnails 2026: Complete Guide

YouTube banner and thumbnail sizes 2026: total canvas, safe zone, pixel coordinates. Complete visual guide.

Optimal LinkedIn Images 2026: Complete Guide

All LinkedIn image dimensions 2026: profile, banner, post, ads. Best-performing sizes for maximum engagement.

E-commerce

E-commerce Product Images: Complete Conversion Guide

How to optimize product images for e-commerce: dimensions, formats, white background, zoom, alt text. Complete guide.

Shopify Image Sizes 2026: Complete Optimization Guide

Shopify image sizes 2026: recommended dimensions, automatic WebP conversion, optimization tips for product pages.

Amazon Product Images: Technical Requirements Guide

Amazon product image requirements: MAIN image specs, white background, 85% fill rule, no watermarks. Technical guide.

Product Photography on White Background: Complete Guide

DIY white background product photography: two-light setup, removing background in Photoshop, verifying pure white RGB.

Interactive Product Zoom: Implementation Guide

Interactive product zoom implementation: source size formula, CSS zoom, JS cursor tracking, lightbox, mobile considerations.