What is a .RPP file?
RPP is a REAPER project, and unusually for a DAW it is plain text: a nested block format where a line beginning with < opens a block and a lone > closes it. Tracks hold items, items hold a position, a length and the media file they play.
- Did you know
- Because an RPP is text, it diffs and merges in version control like source code - which is why some studios keep their sessions in git.
- A REAPER project is a human-readable text file using a custom nested block syntax, and it stores only path references to media rather than the audio itself.
- Starting a project also spawns companion RPP-BAK backup and RPP-UNDO history files beside the main RPP.
- What Analyser shows you
- Open Ableton Live sets (.als/.alp) and Reaper projects (.rpp) and see the arrangement drawn out: one row per track, every clip positioned exactly where the project puts it, on a real clock with a zoom for busy sections. A project file contains no audio at all - it is an edit list - so what is shown is read from the same numbers the DAW lays the session out with. Reads the tempo, time signature, track list with each track's type, clip count and plugins, and the media files the project points at but does not contain, which is what tells you whether a session that has been moved will still open complete. An Ableton set is gzipped XML and times everything in beats, so the tempo is what makes a real timeline possible; a Reaper project is plain text and already stores seconds.
- Open a .RPP file
- Drag a .RPP file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
- Related formats
- .ALS · .ALP · .RPP-BAK. See all supported file types.