Show HN: Remixify – Find alternate versions of tracks in your Spotify playlists (opens in new tab)

I built this because I have a specific workflow problem when digging for music. I often have a Spotify playlist of original tracks I like, but to actually play them in a DJ set, I need the "DJ-ready" versions (Extended Mixes, Club Edits, Remixes).

Searching for these one by one is tedious. I wanted a tool that automates the search but leaves the selection to me.

What it does: Remixify takes a Spotify playlist URL, scans for alternate versions of those specific tracks, and presents them in a crate-style view. You can preview the results and export your selections to a new playlist.

How it's different: Most discovery tools try to recommend similar music or use AI to guess your taste. Remixify doesn't do that. It strictly looks for versions of the tracks you already provided. It’s designed to be a utility for "completing" a collection rather than finding new artists.

I’d appreciate any feedback on the workflow or the matching logic.

Code: https://github.com/kwakubiney/remixify