Functions

Everything your preparation needs.

Eight areas from import to USB stick: take over, check, analyse, prepare, clean up, sync and work with AI assistants. The full list is under Features & measurements. The images are original app views with demo tracks.

Import & Library

Your whole collection. From any program.

Import folders, purchases and complete libraries from Rekordbox, Serato, Engine DJ, Traktor, VirtualDJ, djay Pro, Apple Music and Mixed In Key, with playlists, cues, beatgrids and tags. All in one fast view with a playlist tree, quick filters, player and feature search.

  • Import libraries from five DJ programs, playlists included
  • Simply bring your Mixed In Key analyses along
  • Quick filters for BPM, key, genre and playlists
  • Find every feature, track and playlist with Ctrl K
  • 100,000 tracks imported in 25 seconds
Details
  • Add audio files and folders by drag-and-drop, import or a watched folder; bring over DJ libraries from Rekordbox, Serato, Engine DJ, Traktor, VirtualDJ, djay Pro, Apple Music (iTunes XML) and Pioneer USB sticks.
  • The Rust core keeps even huge collections smooth: on the Windows test machine, Sonodex imported 100,000 tracks in 25 seconds.
  • File rules and watched folder: new files are sorted and analysed automatically; optionally into your library folder as Artist/Artist - Title.
  • Quick filters above the track list: BPM from–to, key with harmonically compatible keys, genres, recently imported, analysed or not, and playlists. Active filters appear as buttons above the list; you can save common combinations as a template.
  • Function search with Ctrl K: finds features, settings, tracks, artists and playlists, even with typos. Use > to search only commands, @ for artists, # for playlists.
  • The Start page shows your library in numbers, the next sensible steps (for example new tracks in Inbox) and your pinned features. Statistics show distributions by genre, BPM, key and growth.
  • Playlists, folders, smartlists, favourites and archive in one place. Select several playlists with Ctrl or Shift and delete, move or merge them together.
  • The player shows the real cover, title, artist, BPM and key; you arrange the columns yourself, also by keyboard. Keyboard shortcuts can be assigned freely to hotcues, navigation and commands.
  • Export in one dialog: M3U8, CSV, HTML, PDF, copy files or as ALAC (.m4a) for Apple Music, with tags and cover. Convert files to another audio format when needed. Originals stay unchanged.
  • Import Beatport purchases and ZIPs, discover charts and similar tracks (Pro).
Incoming check

Find errors before they find you in the club.

Every new file lands in the Inbox first. Sonodex decodes it completely and checks it for overs, clipping, silence and decoder errors. What passes you accept with one click, already in Sonodex Free.

  • Every new file fully decoded and checked
  • True peak, clipping, DC offset, silence and decoder errors
  • Take lossless files in as space-saving FLAC
  • “Analyse all” and “To library” in one click
  • Included in Sonodex Free
Details
  • Incoming only shows newly added audio files from import, drag and drop, the watched folder and downloads. Imported DJ libraries go straight into the library.
  • Every file is fully decoded and checked for true peak, DC offset, clipping, silence and decoder errors.
  • Lossless files that pass the check are imported as FLAC; MP3 and AAC stay unchanged.
  • The watched folder only picks up files once they have finished copying.
Analysis

BPM, beatgrid and key you can rely on.

Sonodex analyses every track on your computer: tempo, beatgrid, key, energy and loudness to EBU R128. 99.6% BPM exact and over 97% first beat within 10 ms, measured on purchased Beatport tracks. Up to six tracks at once.

  • 99.6% BPM exact on purchased Beatport tracks
  • First beat within 10 ms on over 97%
  • Beatgrid checked against the kick, drum & bass at full tempo
  • Up to 6 tracks at once, almost twice as fast as before
  • Runs locally: your music never leaves your computer
Details
  • Analysis of BPM, key, energy, loudness, waveform and audio fingerprint, each with an indication of how reliable the result is. Key and tempo are always shown; a key you set by hand is never replaced by the analysis.
  • Measurements: 99.6% BPM exact and 97.4% first beat within 10 ms on purchased Beatport tracks; tempo 97% within ±4% on the Raveform test part of human-annotated EDM tracks; key matches the majority of three established key tools on 93% (96% where all three agree; 97% harmonically compatible). All values with their datasets are under Features & measurements.
  • Fast: “Automatic” follows your processor and analyses up to six tracks at once. On a PC with 16 threads, throughput rose from 16.1 to 31.2 tracks per minute.
  • The new energy rating (analysis version 6) listens per section to noisiness, brightness, beat activity, loudness and compression and rates the track by its strongest parts. Intros and breakdowns no longer pull it down.
  • Structure suggestions for intro, build-up, drop, breakdown and outro from a local model: 84.7% of sections get the right role. You correct them yourself if needed.
  • Eight neural networks together with a chroma model determine the key. Sonodex measures loudness to EBU R128 (BS.1770-4) with True Peak and ReplayGain; you see it in the “Loudness” column and in the track details.
  • Every beatgrid is checked against the kick: if it sits on the hi-hats instead of the kicks, it moves half a beat. Doubtful grids are collected under “Check grids”, with the reason, whole BPM and the downbeat in one click. The Beatshift Fixer corrects the offset of MP3 cues between programs.
  • Drum & bass, which analyses often read at half tempo (85 to 90 BPM), is recognised by Sonodex from the switch between kick and snare and shown at full tempo, for example 174 instead of 87 BPM.
  • Zoom and overview waveform in RGB, 3 bands, “Colour-blind friendly” or “Energy (simplified)”, with a legend; the beatgrid sits in it just like in Rekordbox.
  • Analysis by priority: what you are loading or previewing is analysed first. The analysis queue and the “Activity” page show analyses, audio checks and suggestions in one place, with pause and resume. You can bring along existing analyses from Mixed In Key.
Cues & beatgrids

Cues in seconds. Grids spot on.

The cue generator sets hot cues and memory cues at drops and sections, based on your templates or a profile that learns from your own example tracks. In the beatgrid editor you get every grid spot on with metronome, markers and lock.

  • Cue generator with templates and a personal cue profile
  • Accept, reject or shift suggestions one by one
  • 16 hotcues, memory cues and loops per track
  • Beatgrid editor with metronome, markers and lock
  • Audio editor for cuts, fades and levels
Details
  • Cue templates and a personal cue profile that learns from at least three of your example tracks and anchors to drops and sections. You check new cues in a preview with reasoning and accept them with a single shared undo step; existing cues are kept.
  • You accept suggested cues one by one, reject them or shift them by a phrase, using the A, R and ←/→ keys.
  • Structure suggestions for intro, build-up, drop, breakdown and outro from a local model, which you can correct; they give the cue generator its anchors.
  • Hot cues A–P, memory cues, loops, Quantize and Beat Jump; variable beatgrids and tap tempo.
  • Beatgrid editor in groups: type the BPM directly or adjust it in fine and coarse steps, offset, drag markers on the waveform and snap them, set the downbeat and grid start, shift the whole grid, reset to the analysis. Metronome with the M key; a locked grid stays unchanged.
  • Audio editor: cuts, crossfades, levels and fades with a preview, saved as a new, linked file. Cues, grids and structure are shifted in time to match; the original stays unchanged.
  • Player layouts Compact, Standard and Large in the View menu or right on the player; when hidden, the library gets the space.
Tidy up

Clean tags for a thousand tracks at once.

Quick Fixes remove “FREE DOWNLOAD”, “@handle” and links from the tags and cleanly separate artist, title and remixer. Recipes change whole selections in one step, and the Track Matcher compares tracklists and playlists with your collection.

  • 16 Quick Fixes with before and after, field by field
  • Batch changes for text, tags, cues and grids
  • Undo a whole batch change in one step
  • Match track lists and streaming playlists against your collection
  • Metadata and covers from open music databases
Details
  • 16 Quick Fixes in four groups with search: separate artist, title and remixer cleanly and remove additions such as “FREE DOWNLOAD”, “@handle” or links from all tags. You see every change beforehand, field by field, and can deselect individual ones. Before Sonodex writes to the audio files, it asks; it first writes a temporary file, checks it and then replaces the file in one step.
  • Track details for one track or a whole selection in the docked panel; only the fields you change are applied.
  • Choose recipes from a catalogue and review them before saving: text, fields, tags, cues, beatgrids, file paths and playlist membership. One shared undo step.
  • Manage your own tags and categories, import tags from a CSV table and create smartlists from genres, keys and tags.
  • Track Matcher for pasted text, CSV and XLSX. Each row is classified as Exact, Uncertain or No match, with alternatives to choose from.
  • Playlist links as a source: your own Spotify playlists, YouTube, SoundCloud and Beatport charts; Apple Music and TIDAL via export file. Nothing is downloaded.
  • Metadata suggestions from MusicBrainz, iTunes, AcoustID and SonoVault with field-by-field acceptance in the metadata review. You choose covers in the edit window, drop them in by drag and drop or remove them, also for several tracks.
Library check

A collection you can rely on.

One click checks the whole library for duplicates, missing and broken files, doubtful grids and missing tags. History shows every change to the library with before and after, and you undo it with one click.

  • Check the whole library with one click
  • Find duplicates by audio fingerprint
  • View, undo and redo changes
  • Tidy the archive: from the library or into the recycle bin
  • Backup at the touch of a button, portable or encrypted via WebDAV
Details
  • Library check: an overview of the state of each area (files, beatgrids, metadata, duplicates, audio, unused files), “Check entire library” with progress, and a sortable results list with recommendations and bulk actions.
  • Find duplicates by audio fingerprint, missing and broken files, missing tags and covers.
  • Rename or move files with a preview. Sonodex first writes a temporary file, checks it against a checksum and only then replaces the original.
  • History as a timeline: every change with source (you, Quick Fix, ChatGPT …), affected tracks and fields before and after, with search and filters. “Undo this operation” also undoes an older change if later ones do not affect the same fields. Undo with Ctrl Z, redo with Ctrl Y.
  • Library tools on their own page: merge playlists in a fixed order, playlist prefix with live preview, which playlists a track is in, path mappings, clean up the archive and app caches with their size.
  • Clean up the archive in two clear ways: “Remove from library” leaves the files where they are, “Move to trash” takes the files along with their variants. Files on network drives never go to the recycle bin.
  • You decide on backups: “Create backup now” saves the library with playlists, cues and metadata, and the backup list restores a previous state. Plus a portable backup for another computer and, optionally, encrypted database backups on your own WebDAV storage.
  • Changes to the library database run step by step in transactions: if a step fails, the last complete state is kept.
Sync & USB

Prepare once. Play in any software.

Sonodex writes playlists, cues, beatgrids and metadata back to Rekordbox, Serato, Engine DJ, Traktor and VirtualDJ, or straight to a USB stick for Pioneer players. Before every write you see in the preview what will change.

  • Sync with Rekordbox, Serato, Engine DJ, Traktor and VirtualDJ
  • Direct Rekordbox sync, checked with the latest version
  • Create USB sticks for Pioneer players directly
  • Every change in the preview first
  • Checksums and journal: an abort never leaves a half-finished state
Details
  • Metadata, playlists, cues and grids are transferred depending on the target format; the exact scope is listed under Integrations. Direct sync with Rekordbox 6/7 has been tested with the latest Rekordbox version.
  • Change preview and individual conflict decisions before the sync; sync and USB are already included in Sonodex Free.
  • Checksums for source and target and a journal: if a sync to a DJ library, an export file or a USB stick is interrupted, Sonodex restores the previous state. With the portable audio package, the half-finished folder is left in place with “INCOMPLETE.txt”.
  • Path mappings in a fixed order (the first match applies), testing and checking of paths, plus sync exclusions, grid protection and field and colour mappings.
  • Pioneer USB: WAV, AIFF, FLAC, ALAC and constant-bitrate MP3, with cues, beatgrids, RGB details and 3-band waveforms.
KI-Assistenten

Say which set you need. You decide what stays.

Connect ChatGPT, Claude or another AI assistant to your library via MCP. The assistant builds sets from your own tracks, suggests cues and corrects beatgrids. Every change is a suggestion: you review it in Sonodex, apply it and can undo it at any time.

  • Have sets built from your own tracks
  • Have cues suggested and beatgrids corrected
  • Nothing in Sonodex changes without your confirmation
  • Undo every applied change in a single step
  • With ChatGPT, Claude and other MCP assistants
Details
  • Via MCP (Model Context Protocol): search tracks, build and analyse sets, plan transitions, edit metadata, covers, tags, playlists and smart playlists.
  • Prepare tracks: analysis with loudness (LUFS), suggest cue points, measure and correct the beatgrid. Maintain your library: merge duplicates (archived, never deleted), relink missing files, rename or move files, export and import playlists.
  • Every change is a suggestion: Sonodex shows old and new values and only saves once you confirm; one step undoes it. For track changes you can apply just individual fields or tracks if you like.
  • New suggestions wait under Tasks → Suggestions, a short notice announces them, and you check them when it suits you.
  • Connect without opening a port via your Sonodex account (Pro) or locally via the MCP server in Sonodex. You choose whether the assistant may only read, create playlists or edit tracks. Audio and full file paths are not transmitted.

Try it yourself

Free is free to use and needs no account. Pro is available at the founder price of one-time €29.

4.9 · Windows x64 · Installationshilfe

  • Usable without an account
  • Music stays local
  • No subscription

Original Sonodex app · Demo library