Control how and when music plays
Timers, shortcuts, and warnings that work the way you'd expect from a desktop app.
Sleep timer
Three presets, 15, 30, or 60 minutes, pause playback automatically. Cancel anytime while one's running.
Idle auto-pause
Pauses playback after inactivity, with the delay adjustable from 5 to 60 minutes on a slider.
8 keyboard shortcuts
Play/pause, skip, volume, fullscreen, 5-star rating, and Play Later, all bound to single keys, active anywhere except text fields.
Multi-tab warning
A quiet notification if Spotify ends up playing in more than one browser tab at once.
Make it look like yours
Repaint the interface in one click, or write your own rules from scratch.
5 theme presets
Built-in color themes shown as swatches. Click one to repaint Spotify's interface immediately.
Custom theme builder
Define five colors by hand (background, surface, text, muted text, accent) via picker or hex input.
Font replacement
Swap Spotify's default typeface for an alternative, applied across the whole interface.
Custom cursor color
Pick a color for your mouse cursor on the Spotify page. Text fields keep a standard text cursor.
Auto day/night theme
Switches between a light and dark preset on a schedule, so you don't have to do it by hand.
Custom CSS editor
A live text editor. Write any CSS and apply it to the page immediately for full control.
Keep track of what you listen to
Local stats and queues that stay attached to your tracks across sessions.
5-star ratings
Rate any track up to 5 stars from the control row. Ratings stay attached to the track across sessions.
Play Later queue
A separate 10-track list, one click to add. Each entry jumps straight to that track in Spotify.
Daily listening time
A live badge counting active-listening minutes, ticking only while something actually plays. Resets at midnight.
Weekly recap
Top 5 artists, top 5 tracks, total time, and total plays for every Monday to Sunday block.
Search on Genius / YouTube
Right-click any track to open a lyrics or video search in a new tab. Each can be toggled off individually.
Copy song & artist
Right-click and copy a plain-text line like "Sapphire by Ed Sheeran" to paste anywhere.
Your data, your interface
Everything is stored locally. Export it, reset it, or adjust how the page itself behaves.
No account, no server
Sidekick never talks to a backend. Ratings, themes, and stats live in your browser's storage only.
Export your data
Download everything Sidekick has stored (ratings, settings, queue, listening log) as one JSON file.
Reset all data
Clears everything and returns to a clean state. This can't be undone, so export first if you want a copy.
High contrast, larger targets, reduced motion
Three independent toggles, separate from anything Spotify itself offers.