Self-hosted web app for browsing, playing, and editing music file metadata. Features a three-panel UI to navigate your library, listen to tracks, and write tag changes directly back to audio files. Built with Next.js, React, Prisma + SQLite, and node-taglib-sharp.
Most metadata editors are either desktop-only, command-line tools, or bloated apps with steep learning curves. If your music lives on a NAS, a server, or a headless machine, editing tags means SSH, mounting drives, or syncing files back and forth.
Tagr takes a different approach:
Run it anywhere β Docker, bare metal, your NAS. If it runs Node.js, it runs Tagr.
Edit from any browser β No installs, no plugins. Just open a tab.
Do one thing well β Browse your library, edit tags, save. That’s it.
Features:
Metadata Editing
Edit 40+ metadata fields inline β title, artist, album, year, genre, composer, BPM, lyrics, and more
Album art management β view, replace, and upload cover images directly
Star ratings (1β5) with a visual widget
Support for track/disc numbering, sort fields, catalog numbers, barcodes, and extended tags
Read-only display of audio properties (codec, bitrate, sample rate, channels, bits per sample)
Music Player
Built-in audio playerΒ with interactive waveform visualization (WaveSurfer.js)
Play/pause, previous/next track navigation
Click-to-seek on the waveform
Auto-advance to next song
Collapsible sidebar player with album art, title, and artist display
Library Browsing
Three-panel layoutΒ β folder tree, song list, and detail editor side by side
Folder treeΒ with hierarchical navigation and real-time search
SortingΒ on any column β title, artist, album, year, duration, bitrate, date added, and dozens more
Advanced filteringΒ β text, numeric ranges, date ranges, and boolean filters across all fields
Customizable columnsΒ β show/hide any of 40+ columns to match your workflow
Virtual scrolling and infinite pagination for large libraries
Rescrobbled is a music scrobbler daemon. It detects active media players running on D-Bus using MPRIS, automatically updates “now playing” status, and scrobbles songs to Last.fm or ListenBrainz-compatible services as they play.
Among other things, due to sharing a Spotify account, I needed a way to scrobble to Last.fm without connecting the Spotify account to my Last.fm account. Rescrobbled offers a simple solution for this.
Easy Audio Sync is an audio library syncing and conversion utility. The intended use is syncing an audio library with many lossless files to a mobile device with limited storage.
The program’s design is inspired by the rsync utility. It supports folder-based source to destination syncing, with added audio transcoding capability, and is GUI-based instead of CLI-based.
Features:
Custom FFmpeg-based audio transcoding engine
Multithreaded operation for fast conversions
4 lossy output codecs supported: MP3, AAC, Ogg Vorbis, and Opus
Robust metadata parser ensures tags and cover art are correctly transferred when converting between different formats
ReplayGain volume adjustments
Destination folder cleaning (deleting files that no longer exist in the source)
Pot-O MusiQT is a lightweight yet feature-rich desktop music player built with Python and PyQt5, designed for users who want a clean interface, strong playlist control, and practical everyday playback features without unnecessary complexity.
It focuses on local media playback, fast interaction, and keyboard-friendly operation, while still offering modern conveniences such as metadata handling, lyrics viewing, and smooth playback transitions.
Features:
JSON-backed
Edit Metadata
Embed Lyrics
Rename File by Metadata
Open ZIP File
Edit Cover
Show Lyrics
Play Video Clip
Save & Load M3U Playlist
Export Playlist to CSV & JSON
Search result as new playlist
Multiple Instances
User friendly UI/UX
Search by Metadata & Filename
Support common popular audio files (e.g. MP3, FLAC, AAC, M4V, OGG) and many more
It takes an HTML file that receives playback notifications from foobar2000. The panel can react to those notifications and adjust its output using JavaScript code.
HuMidi is a universal piano auto player for ROBLOX. It plays even the most generic MIDI file with great depth, thanks to the humanization and automatic sustain pedal generation algorithms. The pedals are generated with a thorough analysis of the MIDI data, adding more depth to your performance that no other MIDI players could!
Personally have been tested in:
Visual Pianos
Starving Pianists
Digital Piano
Piano’s Got Talent
This tool is universal, as long as the piano in-game allows to be played on a keyboard.
Features:
MIDI auto player
Humanization options
Automatic sustain pedal (even if your MIDI doesn’t have the data!)
Visualization
Pause and resume
Scrubbing / seeking – You don’t have to play from the beginning every time, just skip to the part you want to play!
The Audio File 