CrateKeeper
A DJ and producer's sample library copilot that watches your streaming saves and ripped vinyl collection, auto-tags by BPM/key/genre, and surfaces forgotten gems you haven't played in years — built for working DJs who lose more time to file management than to mixing.
Working DJs and bedroom producers who manage large cross-source music libraries
- Cross-source ingest from streaming, ripped vinyl folders and Bandcamp with auto BPM/key detect
- 'Forgotten gem' daily digest pulling tracks you haven't played in 6+ months
- Set-builder: drag to a setlist and get harmonic-compatibility warnings
- Crate integrity checks: flags broken links, missing files and metadata drift
Working DJs already lean on CLIs to manage libraries (151-star signal) but no consumer-friendly product owns the 'creative memory' job of resurfacing forgotten material — that's where the real time cost hides.
Multiple paid products (Lexicon DJ, Mixo, Mixed In Key, GreenGo, PrepMyTunes) plus active open-source projects (One Tagger, spotDL) confirm real, ongoing demand from working DJs for library tooling.Lexicon DJ - DJ Library Management ↗GreenGo — BPM & Key Detection Tool for DJs ↗
The 'DJ library management' niche is crowded: Lexicon DJ, Mixo, Djoid, DJ.Studio, Mixed In Key, GreenGo, PrepMyTunes, plus free OSS One Tagger already cover auto-tagging, curation, and workflow — leaving little uncontested room.Djoid vs. Lexicon vs. Mixed In Key vs. DJ.Studio ↗One Tagger - free open source cross-platform music tagger for DJs ↗
Proven willingness to pay: Lexicon charges $9.99–$19.99/mo or $199–$399 lifetime, Mixed In Key sells full bundles, GreenGo is $24.95 one-time — DJs already spend on workflow tools, but a new entrant needs sharp differentiation.Pricing | Lexicon DJ ↗Mixed In Key: Software for DJs and Music Producers ↗
DJ craft and BPM/key tagging are durable, but 'resurface forgotten gems' is the kind of AI feature Rekordbox/Serato or Lexicon could ship natively, eroding a new entrant's defensibility over time.Lexicon DJ - DJ Library Management ↗
Auto-tagging leans on existing libraries (feasible), but Spotify-to-local conversion is legally constrained and audio analysis quality depends on third-party engines, raising build complexity beyond a weekend project.spotDL - Spotify Downloader ↗One Tagger - free open source cross-platform music tagger for DJs ↗