UltraStar CLI

What is this?

UltraStar CLI is the fastest way to build your UltraStar song library. Search the biggest UltraStar database, preview results, and download complete, ready-to-sing folders in one go — lyrics, cover, and video included. No manual stitching. No messy files. Just search, hit Enter, and sing.

Why it’s awesome:

• Blazing fast TUI powered by Ink (React for terminals)
• Pulls from the largest UltraStar DB and auto-fills YouTube links when needed
• Downloads video via yt-dlp with a smooth progress bar
• Writes proper UltraStar song.txt headers and saves cover.jpg + video.mp4
• Smart session: securely creates and stores credentials automatically
• Cross‑platform: Linux, macOS, Windows

Requirements

• yt-dlp (for downloading videos + audio)
• Either npm (Node.js) or Bun (recommended)

Install yt-dlp

• macOS: brew install yt-dlp or pipx install yt-dlp
• Windows: winget install yt-dlp.yt-dlp or choco install yt-dlp or pipx install yt-dlp
• Linux: Use your package manager (e.g. apt install yt-dlp, dnf install yt-dlp, pacman -S yt-dlp) or pipx install yt-dlp

If you need more options, see https://github.com/yt-dlp/yt-dlp#installation.

Install a runtime

• Node.js (for npm): We recommend installing via nvm: https://github.com/nvm-sh/nvm
• Bun (recommended): curl -fsSL https://bun.sh/install | bash or see https://bun.sh

Quick Start (no install)

Run directly with your favorite package runner:

npm

npx ultrastar

Bun (recommended)

bunx --bun ultrastar

The first run will check yt-dlp and initialize a session. Use the search form, pick a song, and press Enter to download. Your songs will be saved under ./songs/Artist - Title/.

Keyboard Shortcuts

• In search form: Tab = switch field, Enter = search, Esc = quit
• In results: ↑/↓ = select, Enter = download, ←/→ = page, e = edit search, r = refresh, Esc = back

Links

• https://usdb.animux.de - The biggest database of UltraStar songs (lyrics only)
• https://ultrastar-es.org/ – Smaller database of songs, includes audio and video. You can download UltraStar WorldParty here.

How it works (under the hood)

• Searches songs on USDB
• Resolves a YouTube link from USDB when available; otherwise searches YouTube
• Downloads the video with yt-dlp while showing progress
• Fetches cover art and lyrics, and writes a proper UltraStar song.txt
• Outputs a complete folder per song: song.txt, cover.jpg, video.mp4

Develop

This project uses Bun. You can still run the built CLI with Node, but development is Bun-first.

Setup

bun install

Start the TUI in dev

bun run start

Build the distributable CLI

bun run build
# Artifacts are written to ./build/dist

Try the built CLI locally

node build/dist/index.js
# or
bun build/dist/index.js
# or on Unix systems (shebang-enabled):
./build/dist/index.js

Lint & Format

bun run lint
bun run format

Project structure (high level)

• src/ui/ – TUI (Ink) components and interactions
• src/api/ – USDB and YouTube integrations (search, download, auth)
• src/storage/ – Local cache: credentials, downloaded song list
• src/build.ts – Build script (Bun bundler)

Troubleshooting

• yt-dlp not found: Install it and ensure it’s on your PATH, then re-run the CLI
• No results: Try different keywords or fewer filters (artist/title)
• Permission issues writing songs: Run in a directory you own or adjust permissions