Inventory any REAPER session (.rpp) without installing REAPER: tempo map, tracks, media items with source files, markers, regions and FX chain plugins. Ideal for archiving sessions, migrating DAWs, or auditing a backup drive — entirely in your browser, nothing uploaded.
Detailed side-by-side format architecture for RPP Document (.rpp) and JavaScript Object Notation (.json). Every conversion executes strictly within isolated browser memory without network transit.
Drag and drop your .rpp file onto the working surface or use the system file dialog. File magic bytes are verified locally on device.
Select a quality preset (Lossless, Visually Lossless, Balanced, Smallest) or adjust advanced encoding switches in the options panel.
Click CONVERT to execute local WebAssembly compilation. Save the finished .json directly to local storage, or stage it for chaining.
Prefer local shell scripting? Run this standard POSIX command on your machine to achieve equivalent transcoding without a web interface:
# Convert RPP to JSON locally
pandoc input.rpp -o output.jsonWorking with files across multiple web pages? The official convrtr Chrome Extension adds native Side Panel docking, right-click context menu media extraction, and visible viewport capture. Powered by the same zero-upload client-side WebAssembly engine.
Everything structural: the REAPER version that saved it, tempo and time signature, every track with its items and referenced audio/MIDI files, markers and regions, and every plugin in the FX chains — so you know what each session contains before deciding what to open.
No tool can from the project file alone: .rpp files reference media on disk rather than embedding it. The JSON lists every source file so you can locate or relink them; rendering still needs REAPER.
Yes — REAPER backups use the identical chunk grammar, so both extensions are accepted by the same parser.
No. Parsing runs entirely inside your browser. Unreleased music never leaves your device.
RPP Document (RPP) and JavaScript Object Notation (JSON) serve distinct roles across the digital workflow. Converting to JSON provides optimized compatibility, modern compression efficiency, or standardized playback across web browsers, operating systems, and media production environments.
The output format (JSON) is inherently lossless or supports lossless operation. Your original visual or audio fidelity is mathematically preserved without quantization artifacts.
Never. convrtr is architected with a strict zero-upload model. All processing, decoding, decompression, and encoding happen 100% locally on your machine using sandboxed WebAssembly and Web Workers. Your data never touches an external server, database, or analytics collector.
You can execute this conversion locally via command-line utilities such as ffmpeg, cwebp, or ImageMagick. For example: see the developer terminal recipe provided in the technical specifications dossier above. convrtr provides the identical local-first capability directly inside your browser without installing CLI packages.
Yes. You can drop multiple .rpp files into the instrument to process them concurrently in browser Web Workers, or click 'Open in Master Studio' to queue mixed formats, configure individual targets, and export as a single ZIP archive.
Convert web media, local files, and document assets directly in Chrome Side Panel using client-side WebAssembly, zero-server uploads, and the official convrtr browser extension.
A byte-level walkthrough of the MLW container format: the Root marker, the filename block, the AES-GCM payload, and the one part of the layout nobody has documented.
MLW uses a single fixed encryption key shared across every install of the app. What that means for whether unwrapping it counts as DRM circumvention — in plain English, not legal advice.