Last.fm History Linker — Import Spotify & YouTube Music Listening History

Step 1

Local API Configuration

Credentials are loaded directly from the local .env file in your root folder.

Active API Key

Checking configuration...

Step 2

Connect Last.fm Account

Grant permission for this app to scrobble tracks to your profile.

Please save API credentials first.

Step 3

Upload History Exports

Drag and drop or select your Spotify and YouTube Music JSON files to parse them in the browser.

Spotify JSON Extended streaming history ZIP → endsong_*.json files

YouTube Music Google Takeout → watch-history.json

Step 4

Scrobble to Profile

Starts the chronological scrobbling queue using each track's real timestamp.

14-Day Limit Warning: Last.fm API will ignore/reject scrobbles older than 14 days (returns "timestamp too old" code). This application attempts to scrobble them anyway.