Back up editable video projects from your browser

Choose the file for the job

An MP4 is a rendered video: useful for publishing and playback, but it does not preserve the working timeline as separate editable clips. A .promptfy package carries the project document and media needed to reopen an edit in the supported web workflow.

Account synchronization and portable backup solve different problems. The web project document can synchronize while media stays in browser storage. Seeing the project name on another device does not prove that its video and audio files are available there.

Make a portable package before clearing storage

Finish the changes you want to keep, return to Projects, and use the project-package export action for that project. Wait for the file download and save it somewhere you can identify later. Keep the original recordings as a separate archive too.

• Confirm the source clips still play before exporting the package.
• Save the downloaded .promptfy file outside temporary browser storage.
• Include a recognizable project name and version in your archive naming.

Test the backup by reopening it

Use the package import action in Projects to reopen the downloaded file. Imported packages receive a separate project identity so they do not overwrite another draft’s media or history. Check the imported copy before treating the archive as usable.

Illustrative check: open a project with two clips, a title, and an added sound. Export the package, import it, and compare the beginning, the join, and the ending. Confirm that the sound plays and that the title remains in the intended place.

Understand what browser cleanup can remove

Browser storage holds working media and project data. Clearing site data, switching browser profiles, or using another computer can change what is locally available. A cloud project entry alone is not a complete media backup.

Derived caches and original media are also different. Temporary preview or proxy files may be recreated from available originals, but deleting a required original is not the same kind of cleanup. Confirm a tested package before removing any source you still need.

Keep a sharing copy and an editing copy

Save the final MP4 for viewers and the project package for future edits. Label the version so that a later correction does not get confused with the file already published. Reopen the archive after major changes if the editable copy matters to your workflow.

Package import requires a supported format, and future project versions may need a newer editor. This guide covers web package backup; do not assume every package can open in the native iPhone app or another vendor’s editor.