Library
All the assets you reuse across your Synthesia videos.

Library page
What you can upload
- Media (images, videos, animations)
- Music (audio files)
- Fonts
Templates cannot be uploaded as files.
To create a template:
Media
Go to Library → Media to view and manage custom images and videos.

Media Library
To upload media, click Upload file and select the file you want to add.
Supported formats:
- Images:
.jpg,.png,.svg(maximum file size: 250 MB) - Videos:
.mp4,.webm(maximum file size: 250 MB) - Lottie animations:
.json(maximum file size: 250 MB) - GIFs:
.gif(maximum file size: 250 MB)
To manage existing media assets, click the three-dot menu next to any item. Available actions include:
- Copy asset ID
- Rename asset
- Download asset
- Delete asset
Music
Go to Library → Music to view and manage custom audio files.

Music Library
To upload music, click Upload file and select your audio file.
Supported formats: .mp3, .wav, .oga, .aac, .flac.
To manage existing music assets, click the three-dot menu next to any item. Available actions include:
- Copy asset ID
- Rename asset
- Download asset
- Delete asset
Fonts
Go to Library → Fonts to view and manage custom fonts.

Fonts Library
To upload a font, click Upload file and select your font file.
Supported formats: .ttf, .otf, .woff, .woff2.
To manage existing fonts, click the three-dot menu next to any item. Available actions include:
- Copy asset ID
- Rename asset
- Delete asset
Templates
Go to Library → Templates to view custom templates available in your workspace.

Custom Template Library
Click on + Create new template to create a custom template from scratch. Alternatively you can create a template from an existing video .
Edit a Template
To edit existing templates, hover over any template and click Edit to modify it. If you make a change to your template, click Publish Template in the upper right corner of the edit page when finished to ensure changes are saved.
Template Management Options
To manage existing templates, hover over any template and click the three-dot menu to access the following options:
- Open in new tab – Opens the template in a separate browser tab
- Share – Allows sharing across workspaces or organizations
- Copy ID – Copies the template's unique identifier
- Set as default – Designates this template as the workspace default. All new videos will use this template as their starting point. Only available to workspace admins.
- Download – Downloads the template audio as a .wav file
- Rename – Allows you to change the template name
- Move to – Transfers the template to a different workspace
- Duplicate – Creates a copy of the template
- Create video – Initiates a new video using this template
- Remove – Deletes the template
Updated 23 days ago