Social media image sizes are constantly changing due to new platforms and evolving guidelines.Official dimensions for images on social media platforms are limited, leading to inconsistency.A comprehensive cheat sheet for social media image sizes on various platforms is provided for June 2025.Instagram, Facebook, X (formerly Twitter), LinkedIn, TikTok, Pinterest, Snapchat, YouTube, Bluesky, and Threads image size guidelines are included.Tips for optimizing images on each platform, including aspect ratio recommendations, dimensions, and maximum file sizes, are detailed.Ensuring correct image sizes on social media helps maintain professionalism, engagement rates, and preserves brand messages.Hootsuite's integration with Canva simplifies the process of selecting and editing images for social media posts with network-optimized sizes.