Guide · Sharing
Which apps play your video when you share a link
You made a video for your launch. Here's what actually happens when someone drops the link in Slack, X, LinkedIn or iMessage, and how to make your link look alive everywhere.
You spent the morning getting a launch video just right. You paste the link into your team's Slack to show it off. And it unfurls as a flat, still thumbnail. No motion, no play button, nothing that hints there's a video behind it.
It's not your video's fault. Whether a shared link shows a playable, moving preview or a static imageis decided entirely by the platform you paste it into, and they all behave differently. Here's the map.
The one tag that does the heavy lifting
Every rich link preview is built from a handful of Open Graph tags in a page's <head>. Two matter here:
og:image: the thumbnail. Nearly every platform reads it, and most show only this. It is the single most important asset for how your link looks.og:video(and player cards / oEmbed): the actual video. Only a handful of platforms will play it inline, and several need a proper hosted player or whitelisting before they do.
The thumbnail is what most people will ever see. The video is a bonus on the platforms that support it.
Who plays video, and who shows a thumbnail
Roughly (and platforms do change this, so test your own links) it breaks down like this:
Can show a moving preview
A clip, animation or player
Shows your thumbnail
Your og:image, as a poster
The takeaway isn't “video previews don't work.” It's that the thumbnail carries the link on most platforms, and the moving preview is a delight on the few that support it. So you want both: a poster frame that stops the scroll, and a video ready to play wherever it can.
How to make your link look alive everywhere
- Lead with a poster frame that isn't boring. Your
og:imageshould look like a still from a great video (motion blur, a bold frame, your brand), not a screenshot of a settings page. - Set the video tags where they help.
og:video,og:video:type, dimensions, and a Twitter player card get you the moving preview on X, Facebook, Discord and Telegram. - Give it a real home. A share/landing page with the tags set correctly unfurls better than a raw file link, and lets every platform grab the right poster.
Where Vidien fits
This is the annoying part of shipping a product video: you also have to sweat the thumbnail, the tags and the frame that lands in a feed. Vidien gives you the whole set from one link: the beat-synced video and a poster frame pulled from your brand, so your link looks alive whether the platform plays it or shows the still.
And when your product moves on, your preview doesn't have to fall behind. A fresh cut is a minute away. So the video people share is always the current one.