Free social media post mockup generator
SocialPostMockup is a free social media post mockup generator for founders, marketers, and creators.
Frame screenshots and write captions in a live preview, then export a pixel-perfect PNG — no signup required.
Use it as an X and LinkedIn screenshot framer, or design an Instagram caption post.
The studio includes LinkedIn, X (Twitter), and Instagram layouts so your mockups look like real feed cards.
Generate LinkedIn post mockups, tweet mockups, and Instagram post frames in the browser at
socialmockup.online.