IMRESS - Free Image Compression Tool.
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Updated
Oct 20, 2026 - JavaScript
IMRESS - Free Image Compression Tool.
Social media image sizes with safe zones and upload limits: JSON, npm package, agent skill and MCP server. Data CC BY 4.0.
Blank, correctly-sized canvas templates (PNG) for OG cards, social banners, favicons and app icons (iOS/Android/PWA/Windows/Play) - each with a safe-zone guide overlay. Verified 2026 specs.
Character limits, image sizes and 9:16 safe zones for every major social network, in JSON. Maintained by Mydrop.
A web-based tool that allows users to upload an image and simulate estimated file sizes for different image formats (JPG, PNG, WebP, and AVIF) with adjustable quality settings. Estimate image size differences between formats.
Social media image sizes — quick reference + code screenshot tools
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