FitPreview

Hey Product Hunt! 👋 Really excited to share FitPreview with you all today. So what is it? FitPreview lets you see how your images will look on Instagram, TikTok, LinkedIn, Twitter, and YouTube—all at once. Just upload one image and you get previews for all these platforms simultaneously, with accurate cropping and safe zone indicators so you know exactly what your audience will see. Why I built this: As someone who creates content, I got tired of uploading the same image to different platforms just to see how it would look. Plus, most tools out there only handle Instagram, and they all want you to sign up and upload your photos to their servers. That never sat right with me. So I built FitPreview to fix three things: 1. Multi-platform preview (because why stop at just Instagram?) 2. Privacy-first—everything happens in your browser, your images never leave your device 3. No signup needed—just open it and start using it What you can do: Preview on 7+ platforms at the same time Safe zone indicators—see exactly what will be visible vs. what might get cropped on each platform Plan your Instagram grid (2x2, 2x3, 3x3, or 3x4 layouts) Adjust the crop for each platform individually (Manual, Fit, Fill, Center, Smart Fit) Export your optimized images—download perfectly sized images for each platform, or export all at once Real-time preview—see changes instantly as you adjust your images It's completely free, no watermarks, no subscriptions Who's this for? Content creators planning their Instagram feeds, social media managers trying to optimize posts, marketers creating content for multiple platforms, or honestly anyone who wants to see how their images look before posting. What makes it different: Unlike other tools that only handle Instagram or require you to upload photos to their servers, FitPreview works entirely in your browser. You get previews for all major platforms—not just one. I'd love to hear what you think! What features would make this more useful for you? Have you tried other tools? What worked and what didn't? Thanks for checking it out! 🙏