Why people compress images (and when you should)
Email / messaging limits
Gmail/Outlook and WhatsApp choke on huge photos. Use JPG/WebP around 70–85% quality, and keep total attachments under ~20–25MB.
Website speed & Core Web Vitals
Big hero images destroy LCP. Resize to ~1920px, compress, and your site feels instantly faster without touching code or plugins.
Marketplace uploads
eBay, Etsy, Airbnb etc. downscale anyway. Compress first so you control clarity, not the platform’s mystery resizer.
How to get a tiny file without wrecking quality
- Upload your image (all local — nothing uploads).
- If it's a huge camera file, enable Resize and cap width (e.g. 1920px).
- Pick JPG or WebP. Start around 80% quality.
- Use Target size mode if you must stay under a limit (e.g. 900 KB for email).
- Download. The filename automatically uses .jpg / .webp / .png to match your choice.
Written by Inline Computers (UK). Last updated 25 October 2025.
This page is about making individual images smaller for email, SEO speed scores, and marketplace listings. For 40+ images in one go, use Bulk Image Resizer.