Guides
Smaller images, explained
Clear, tested advice on formats, quality settings, exact file sizes and faster pages. Every guide is written around what Graviton does: compressing images in your browser, so they never leave your device.
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- How-to · 4 min readHow to convert JPG, PNG, WebP, HEIC and GIF to AVIFHow much smaller AVIF makes each format, measured on real photos, what to watch for, and when to keep a JPG or PNG instead.Read the guide
- How-to · 3 min readHow to convert a GIF to JPG, PNG, WebP or AVIFWhich format to turn a GIF into, how much smaller each one is, what happens to animation and transparency, and how to keep an animated GIF.
- How-to · 5 min readHow to compress WebP and AVIF imagesWhen compressing WebP and AVIF again pays off, what we measured, the settings to use, and how to keep the format, transparency and HDR.
- Guides · 5 min readSocial media image sizes in 2026: Instagram, Facebook, X and moreThe sizes and shapes every app shows: Instagram posts and stories, Facebook and LinkedIn link images, X, Pinterest and YouTube, and how to crop to fit.
- How-to · 4 min readCrop vs resize: which one your image needsCropping chooses what’s in the picture; resizing chooses how many pixels it has. When to use each, what happens when the shape changes, and the right order.
- How-to · 6 min readHow to convert HEIC to JPG on Windows, Mac and iPhoneEvery way to turn iPhone HEIC photos into JPGs: the built-in tools on Windows, macOS and iOS, their catches, and a private browser converter for batches.
- How-to · 6 min readHow to compress an image to a specific size, from 20 KB to 2 MBGet a photo under 20 KB, 50 KB, 100 KB or 2 MB: what fits at each size, why KB counts differ, and how to meet a form’s limit without a blurry result.
- Guides · 6 min readThe complete guide to image compressionHow image compression works, lossy vs lossless, which format to pick, and the settings that make photos up to 90% smaller without visible loss.
- Web performance · 5 min readHow to optimize images for web performanceA practical checklist for faster pages: the right dimensions, modern formats, responsive images, lazy loading and the Core Web Vitals images affect most.
- Formats · 5 min readJPG vs PNG vs WebP: which image format should you use?JPG, PNG and WebP compared on compression, transparency, animation, compatibility and file size, with a simple rule for picking the right one.
- Guides · 5 min readImage quality vs file size: how to find the right balanceWhat the quality slider really does, which settings to use for websites, email, print and forms, and how to check that small files still look sharp.
- E-commerce · 5 min readE-commerce product image optimization: a practical guideSizes, formats and compression settings for product photos on Shopify, Amazon and your own store, plus a batch workflow that keeps file names intact.
- Web performance · 5 min readHow to reduce website load time with image optimizationFind the images slowing your site down, fix the biggest ones first, and set simple rules that keep pages fast. An image audit you can finish in an hour.
- Formats · 5 min readWhat is AVIF? The image format explainedWhat AVIF is, how it compares to JPG and WebP, which browsers support it, where it falls short, and how to convert images to and from AVIF.
- Workflow · 5 min readHow to compress images in bulkCompress and convert dozens of images at once: prepare the batch, pick settings that suit every file, check the results and download the ones you need.
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