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The Media Library is the left panel of the editor. It holds all the files you have imported into your project — videos, images, and audio. You can browse, preview, and drag media onto the timeline to start editing.

Importing media

1

Open the import dialog

Click the Import button at the top of the Media Library, or drag files directly from your computer into the panel.
2

Choose your files

Select one or more files. Cardboard supports video (MP4, WebM, MOV, MKV), audio (MP3, WAV, AAC), and images (PNG, JPG, GIF, WebP).
3

Wait for processing

After import, Cardboard automatically processes your files in the background. This includes generating thumbnails, transcribing speech, analyzing video content, creating waveforms, and building search embeddings — all in parallel.
4

Drag to timeline

Once imported, drag any file from the Media Library onto the timeline to add it to your project.

Browsing and organizing

  • Grid view — See thumbnails of all your media at a glance
  • List view — See file names, durations, and types in a compact list
  • Hover preview — Hover over any video thumbnail to scrub through a preview
  • Search bar — Type to filter by file name or use semantic search to find content
Cardboard automatically analyzes your media on import, which means you can search by what is in the content — not just file names.
You can also search from the AI Chat panel — try “Find all shots where someone is talking to camera” or “Show me the clips with outdoor scenery.”

What gets analyzed

When you import a file, Cardboard runs several AI processes in the background:
AnalysisWhat it doesUsed for
ThumbnailsGenerates preview framesGrid view, hover preview
TranscriptionConverts speech to text with word-level timestampsSpeech search, captions
Video analysisIdentifies scenes, objects, and actionsVisual search, AI editing
WaveformCreates an audio waveform visualizationTimeline display
EmbeddingsBuilds semantic vectors for contentSemantic search
All of this happens automatically and in parallel. You can start editing immediately while processing completes in the background.

What’s next?