PairWave

Beta · Free

One playlist, every platform

PairWave is a web app that keeps your music playlists in sync across Spotify, YouTube, SoundCloud and Subsonic — and even a Discogs wantlist. You connect the music accounts you already use, and PairWave matches tracks by ISRC (or smart fuzzy matching) and keeps your linked playlists converged to the same set of songs.

To do this, PairWave asks permission to access your accounts on those services — including your Google / YouTube account — solely to read your playlists and add matching tracks on your behalf so your linked playlists stay in sync. It does not share your data with third parties. See our privacy policy for details.

Works with

How it works

Three steps to one library

01
Connect your accounts
Sign in with any supported music service — no password. The first one you connect becomes your account; add the rest, and a Discogs wantlist too, under one identity.
02
Link two or more playlists
Pick a playlist on each platform and link them into a sync group. Tracks are matched across services by ISRC, or by smart fuzzy matching when there isn't one.
03
Sync it your way
Choose autosync — every playlist converges to the append-only union — or master-slave, where one source leads and the rest mirror it. On demand or on a schedule, with every threshold under your control.

Why PairWave

Built for people who want to tinker

Every parameter in your hands

PairWave is for people who want to get hands-on and sync on their own terms. Tune the match thresholds, decide what's auto-added versus sent to a review queue, bias each provider — nothing is a black box.

Autosync or master-slave

Autosync converges every linked playlist to the union of all their tracks. Prefer a single source of truth? Switch a group to master-slave — masters stay read-only and the others just mirror their tracks.

Cross-platform matching

Tracks are matched by ISRC when available, and by fuzzy title / artist / duration scoring when it isn't — with a review queue for the close calls you'd rather decide yourself.

Append-only by default

In autosync a track is only ever added, never silently removed — so the library you built up never disappears behind your back unless you explicitly prune it.

On demand or on a schedule

Run a pass yourself the moment you want one, or let it run automatically on the cadence you pick. No always-on worker quietly draining your API quota.

Any service, one identity

Connect the music services you use — with more on the way — plus a Discogs wantlist, all under a single account.

Get started

Connect a platform to sign in

There's no password — connecting a provider signs you in. The first one you connect becomes your account; add the others to keep everything under a single identity. PairWave is in beta and completely free while it lasts — no card, no catch.