PinPost - Social Media Post Preview Template

This template gives you a social media post previewer that shows exactly how your content will appear on Instagram, LinkedIn, X, and Facebook. Write your text in a single editor, upload images or videos, and see live previews update in real time across all four platforms.

The editor includes format presets for different aspect ratios — square (1:1), vertical (4:5), landscape (16:9), and story/reel (9:16) — with platform-specific dimensions so you know exactly how your visuals will crop. Character counters show you platform limits (280 for X, 2200 for Instagram, 3000 for LinkedIn, 63206 for Facebook) and warn you before you go over.

PinPost includes an AI-powered enhance button that suggests improved versions of your text, so you can refine your copy without leaving the editor. Drafts are saved to the cloud automatically, so you can return to unfinished posts later.

Authentication is built in — users sign up with email and Google, verify their email, and get access to their editor. Profile setup lets you add a display name, handle, and avatar, which appear in the platform previews for a realistic look.

Who This Is For

Content creators who want pixel-perfect posts across multiple platforms

Social media managers previewing client content before publishing

Marketers preparing cross-platform campaigns with consistent visuals

Founders and solopreneurs managing their own social presence without a design team

Best Use Cases

Cross-Platform Content Creation

Write once, preview everywhere. See how the same text and image will appear on Instagram, LinkedIn, X, and Facebook without switching between apps. Catch cropping issues, character limit violations, and formatting problems before your audience does.

Visual Content Planning

Upload images and videos to see exactly how they'll crop at different aspect ratios. Switch between square, vertical, landscape, and story formats to plan your content across feed posts, stories, and reels.

Copy Refinement With AI

Use the built-in AI enhance feature to get alternative versions of your text. Pick the suggestion that fits your voice and platform, then see the preview update instantly.

Draft Management

Save unfinished posts as drafts and return to them later. All content is stored in the cloud, so you can work across devices without losing progress.

Getting Started

Step 1: Remix This Template

Click "Remix" to create your copy. You'll have a working post previewer you can explore before adding your own branding.

Step 2: Familiarize Yourself With the Project

Go to User > Settings > Knowledge, and read what's under "Project knowledge" to understand the intended architecture and features. You can also ask Lovable in the chat for more details.

Step 3: Customize Your Brand

Update colors, fonts, and your app name. The design system uses semantic tokens, so changes propagate consistently across the entire app.

Step 4: Set Up Your Profile

Sign up, verify your email, and set your display name, handle, and profile picture. These details appear in the live previews for a realistic representation.

Step 5: Create Your First Post

Open the editor, type your content, upload an image or video, and watch the previews update across all four platforms. Use the AI enhance button to refine your copy.

Step 6: Go Live

Deploy with one click and share with your audience. Lovable handles hosting and performance.

Step 7: Iterate and Make It Yours

Continue building and make any changes to the app to suit your exact workflow and content strategy.

Conclusion

This post previewer works for content creators, social media managers, and marketers who want to see exactly how their posts will look before publishing. You get live previews across four platforms, AI text enhancement, multiple format presets, and media upload — all in a template you can deploy in minutes. Whether you're crafting a single Instagram post or preparing content for a cross-platform campaign, the live preview replaces the guesswork of posting blind.