stemdeckapp/stemdeck

Before you install

If you have a previous version of StemDeck installed, delete these folders first using Finder before opening the new DMG:

• ~/Library/Application Support/StemDeck
• ~/Library/WebKit/app.stemdeck.desktop
• ~/Library/WebKit/stemdeck

In Finder, press ⌘ Shift G, paste each path, and move the folder to Trash. Then empty the Trash before installing.

What's new in 0.5.0 Alpha 1

A proper DAW look

The whole interface has been rebuilt around a flat dark DAW aesthetic. The mixer and waveform lanes now sit side by side in a two-column layout, with rows that dynamically fill the full available height no empty black gap when you load a track with fewer stems. Non-extracted stems are grayed out in both the mixer and waveform. Loop regions are shown as a full-height overlay so they're easy to spot.

Track info lives in the footer now

The album art, title, time position, stem count, and favorite button have moved to the footer always visible while the transport is running. Below that sits a scrub bar spanning the full width of the footer, plus elapsed / total time. When no track is loaded, the footer shows a decorative placeholder waveform.

Export Mix actually works

You can now export your current stem mix as a WAV or MP3 directly from the footer. The file lands as {title}_exported_mix.wav (or .mp3) no spaces, no special characters, just clean underscores. In the Tauri desktop app, exporting hands off to the system browser since WKWebView doesn't support standard download links. Export button stays grayed out until a track is loaded.

A subtle but important pipeline fix: previously, selecting all 6 stems meant no mix file was produced at all, so export would silently fail. That's fixed a mix is always built regardless of stem selection.

Footer waveform shows the real signal

The waveform in the footer used to pull from the first available stem (often vocals). On an instrumental section that meant a flat line. It now uses the full reconstructed mix, so what you see actually matches what you hear.

Tag search with autocomplete

Type # in the library search box to filter by tag. As you type, a dropdown shows up to 8 matching suggestions click one or navigate with arrow keys and Enter. Tags are extracted automatically from YouTube metadata.

Library sidebar

New sidebar sections: Recent, Stem Collections, Tags, and Favorites. Folders support subfolder nesting via drag-and-drop (circular nesting is blocked). Track cards show Extracted, Source, and Quality details. Purged tracks are remembered across reloads and never reappear.

Sections bar

An interactive sections bar sits above the waveform. You can add, rename, drag, and resize sections. Changes persist across restarts. A live saving indicator shows when a section edit is in-flight.

Analysis panel

The analysis cards now include Dynamic Range (DR) score with a label (Compressed / Moderate / High / Wide), Tempo Stability as a percentage, and a Key Confidence meter.

This is a pre-release alpha. Things may break. If you hit something, please open an issue.

Artifact build

• macOS arm64 and x64 DMGs and runtime packs were built and inspected on a macOS Woodpecker agent before upload.

Artifact scan

• Windows portable packages were scanned with ClamAV in CI before upload.