NoteCove NoteCove

Link Previews

When you paste a URL from a supported site into a note, NoteCove fetches metadata (title, description, thumbnail, author) and renders it as a rich preview card inline. This is called “unfurling” — the link unfolds to show what it points to.

How it works

NoteCove uses the oEmbed protocol under the hood:

  1. You paste a URL
  2. NoteCove checks if the domain matches a known provider (300+ supported)
  3. If yes, it fetches structured metadata from the provider’s endpoint
  4. The provider returns title, thumbnail, description, and author info
  5. NoteCove renders a preview card in the note

If the domain is unknown and discovery is enabled (Settings → Link Previews), NoteCove checks the page’s HTML for a preview endpoint and tries that instead.

The provider ecosystem

NoteCove supports 300+ content providers out of the box:

  • Video: YouTube, Vimeo, TikTok, Twitch, Dailymotion
  • Social: Twitter/X, Instagram, Reddit, LinkedIn
  • Development: GitHub (repos, gists, issues), CodePen, JSFiddle, Replit
  • Productivity: Figma, Notion (public pages), Miro, Loom
  • Media: Spotify, SoundCloud, Giphy, Flickr, Imgur
  • Documents: Google Docs/Sheets/Slides (public), SlideShare

The provider registry updates periodically to add new services.

Caching

Preview data is cached locally for performance. You can:

  • Refresh an individual preview by clicking its refresh icon
  • Refresh All or Clear Cache from Settings → oEmbed
  • Cache size statistics are shown in settings

Privacy

All metadata fetching happens directly from your device. There is no intermediary server:

  • Requests go from your machine to the content provider
  • Cached data is stored locally in application data
  • No tracking or analytics on which links you unfurl
  • In Paranoid profile mode, all link unfurling is disabled entirely

Fallback behavior

  • Known provider, fetch failed: shows an error state with a retry button
  • Unknown provider, discovery disabled: shows as a regular link
  • Offline: shows cached preview if available, or an offline indicator

On iOS, you can choose how links appear by default (Settings → Links):

  • Unfurl: single links get full preview cards; multiple links in the same paragraph show as compact chips
  • Chip: all links show as compact chips with favicon and title
  • Plain Link: links appear as plain text with no decoration

Long-press any link to override the default mode for that specific link.