Social Media Tools
Tools for creators and marketers — character limits, image sizes, and content helpers.
About Social Media Tools
Social media tools on useTool are built around the specific constraints and workflows of content publishing across platforms. Character limits differ between Twitter/X, LinkedIn, Instagram, and Facebook — and they apply to different parts of a post, from the main body to comment threads. The post character counter shows your remaining characters across platforms simultaneously, so you can optimize a single message for multiple networks without switching between apps.
The image size guide covers the required and recommended dimensions for every major social media platform and placement — profile pictures, cover photos, post images, story formats, and ad placements. These specifications change occasionally, and the guide is kept current. The hashtag generator helps build relevant tag sets for Instagram and other platforms where hashtag strategy affects organic reach. All three tools run locally with no data sent to any server.