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You can upload one or many files at once into the Assets library.
Supported formats include images, videos, audio, and common documents.

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Supported formats

  • Images: SVG, WebP, PNG, JPEG, GIF
  • Videos: MP4 (H.264 compression), WebM (short clips)
  • Audio: MP3, WAV, AAC
  • Documents: PDF, DOCX, TXT, CSV
Optimized formats like WebP for images and MP4 (H.264) for videos keep your site fast and lightweight.

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Where to upload

  • Root library: upload files at the top level of your Assets tab
  • Folders: upload directly into a specific folder for better organization

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Upload from Preview

You don’t need to open the Assets tab every time. From the Preview window, you can:
  • Select an image or placeholder
  • Open the side panel
  • Upload a new file by pasting a URL, picking from the Media Library, or choosing from Unsplash
Any file you upload is instantly added to the Media Library and available for reuse across your project.

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Workflow at a glance

1

Choose files

Drag and drop, or select one or more files to upload.
2

Pick a location

Upload to the root library or a specific folder.
3

Reuse anywhere

Uploaded assets are stored in your library and can be reused in Preview, Code, or directly in the CMS.

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Limits

Here are the upload limits to keep in mind:
  • Maximum file size: up to 5 GB per file
  • Parallel uploads: up to 10 files at once
  • File types: only supported formats (see above)
  • Concurrent writes: avoid uploading multiple files with the same name at the same time
There’s no practical limit on the total number of files you can store. Each project comes with its own dedicated media library. However, Fimo actively monitors usage and may reach out to projects that abuse the system under our Fair Use Policy.