Start with the converter on the homepage, or choose the guide that matches the app and publication type you are troubleshooting. Every guide is written for public Instagram publications and documents the limits imposed by source availability and each chat client's cache.
Choose a guide
Link fixerInstagram link previewsWhy cards fail and how to test a converted link.
ReelsVertical video previewsTroubleshoot video, thumbnails, and playable media.
TelegramTelegram preview cacheWork with Telegram's crawler and cached cards.
DiscordDiscord embed generatorGenerate a clean share link and diagnose missing embeds.
Before troubleshooting
Verify that the original publication is public and still opens. Use a fresh chat message and a second known-public publication to distinguish a cached client result from a source-specific failure. Instagram7 cannot make private, deleted, age-restricted, or region-restricted media public.