What is Mixtuby?
A free YouTube music mixer. Paste links or browse curated albums, build playlists with A-B loop on each track, and enjoy crossfade playback. No account required.
Quick Start
1
Add music
Search for songs directly, paste YouTube links, or scroll down and tap any curated album card. Preview tracks before adding — tap ▶ to listen, drag the seekbar to seek, then tap + to add to your playlist.
2
Play & customize each track
Press Play, then tap the settings icon on any track in your playlist to set its speed, A-B loop region, and volume. Tap Next to save and move to the next track.
3
Enjoy continuous playback
Tracks play with smooth crossfade. Your playlist, position, and settings auto-save — come back anytime and resume where you left off.
Continue on another device
Start a song on your phone, finish it on your laptop. Sign in with the same account on both — cross-device resume is off for guests.
1
Play on one device
Listen as usual. While music is playing, Mixtuby quietly saves your current track, exact position, and whole queue every few seconds.
2
Open Mixtuby on the other device
A toast slides in at the top: “Resumed from iPhone · 2:14” — showing where you left off. Nothing changes until you choose.
3
You decide — import or dismiss
Two clear choices, never automatic — see below.
→
Tap the toast to import
Tap the toast (the → arrow) and your full queue jumps over and continues from the exact second you left off on the other device.
×
Tap × to keep this device
Don't want it? Tap × and whatever is already on this device stays untouched. The toast also closes on its own after 30 seconds if you ignore it.
Search & Preview
The fastest way to build a playlist — search, listen, and add without leaving the page.
▶
Preview a track
Tap ▶ on any search result to hear it instantly. The full track plays in the main player with a seekbar on the result row.
DRAG
Seek within preview
Drag the seekbar on the previewing track to jump to any point. A time bubble shows the exact position.
+
Add to playlist
Tap + to add the track to your playlist. Preview stops automatically. Switch between results freely — only the last tapped plays.
TIP
Quick playlist workflow
Search → ▶ preview → + add → search again → repeat. When done, tap Start Mix. Your previewed and added tracks are ready to play with crossfade!
Find a Song by Lyrics
Forgot the title but remember a line — or just a few fuzzy words? Open the By Lyrics tab (the magnifier, next to Quick Start and Add Tracks) and let Mixtuby find it for you.
TYPE
Type or paste a line you remember
Type a chorus line, paste a whole refrain, or just a few half-remembered words — the box grows to fit. Exact wording, spelling and order don't matter; a close fragment is enough.
🔍
Tap Search
Nothing happens as you type — tap the search button when you're ready. Mixtuby checks its own catalog first, and only reaches out to find the song if it needs to.
💡
Not sure? Pick a “Did you mean?” suggestion
If your words are too fuzzy to match exactly, Mixtuby AI suggests up to 3 songs it thinks you mean (artist — title, with the real line). Tap the right one and it loads into your player.
▶
Tap a result to play
Found it? Tap the matching song and it loads straight into your player, ready to go.
Hidden Gestures
These are not obvious from the UI — learn them to get the most out of Mixtuby.
HOLD
Skip 5s buttons
Tap to skip 5 seconds. Hold down to skip 5s every 0.3 seconds continuously until you release.
TAP / HOLD
A: and :B markers
Tap the A: or :B label to set it to the current playback time. Long press to type a specific time manually.
TAP
✂ Share a segment
When A-B loop is active, a ✂ duration label appears above the progress bar. Tap it to share that exact segment with a link.
HOLD
Theme toggle (moon icon)
Tap to switch dark/light. Long press to activate system theme (follows your device settings automatically).
SWIPE
Pull to refresh (mobile)
Pull down from the top of the page on mobile to reload.
DRAG
Reorder & resize playlist
Drag the handle on any track to reorder. Swipe left to remove. Drag the bottom edge of the playlist to resize its height.
TAP
Grid ↔ carousel layout toggle
Tap the layout button next to Quick Start and Saved Playlists to flip the album cards between a vertical grid and a horizontal swipeable carousel. Swipe (or click-drag on desktop) to scroll the carousel. Mixtuby remembers your choice for next time.
Per-Track Settings
Tap the gear icon on any track in your playlist to open its settings. Each track can have its own:
- Speed — 0.25x to 2x (great for practice or podcasts)
- A-B Loop — set start/end points, loop count, and what happens after loop ends
- Volume — override the global volume for this track
Tap Next in the dialog to save and jump to the next track — perfect for setting up an entire playlist quickly.
Settings Panel
Open Settings (gear icon in navbar) to find these options:
Sleep Timer
Set a timer (15m to 120m) and music fades out automatically. A countdown badge appears in the player. Tap again to cancel.
App Notifications
Opt in to get a daily “Your daily mix is ready” reminder, even when Mixtuby is closed. Off by default — turn it off anytime and the device is unsubscribed. On iPhone you must install Mixtuby to your Home Screen first.
Now Playing
Shows the track name as an in-app toast (and a browser notification) when a new song starts, even with Mixtuby in the background. Stays on your device — off by default.
Crossfade & Gapless
Crossfade blends tracks together (1-30s). Turn it off and enable Gapless for instant track transitions with no overlap.
Stars Theme, Video Quality, Audio Mode
Enable animated stars background, choose video quality (360p–1080p), or switch to Audio-only mode to save data.
Rubber Duck (DJ Quack)
Digital debugging companion from The Pragmatic Programmer. Enable in Settings → Rubber Duck. Tap the duck button to summon DJ Quack — 12 skins, animated affirmations, particle effects. Explain your problem to the duck and find the solution yourself.
Learn more about Rubber Duck →
Sleep & Relax
Science-based sleep aid. Enable in Settings → Baby Sleep Game. In Sleep Mode, tap Sleep → choose a playlist (Baby, Rain, 528Hz...) → set timer → Start. Ducks fall slowly, tap to catch with warm particle effects. Screen dims progressively. Based on Cognitive Shuffle, bilateral tapping, and progressive dimming.
Learn more about Sleep & Relax →
Breathe
Guided breathing to fall asleep or calm down. In Sleep Mode, tap the Breathe card, pick a technique, then Start breathing. An animated circle expands as you inhale and shrinks as you exhale, with the phase and a countdown shown inside.
🌬️
6 science-backed techniques
Choose 4-7-8, Box, Coherent, Wim Hof, Physiological Sigh, or Alternate Nostril. Tap the info button on a technique to read what it does and the research behind it.
🔊
Sound cues — breathe with eyes closed
Tap the Sound button to hear a real breath play as you inhale and exhale, with a short bip marking the end of each phase. Holds stay silent. Now you can follow along without looking at the screen.
Party Light Show
Turn the screen into a full-screen light show synced to the vibe. In Sleep Mode, tap the Party card to launch 11 effects — including a strobing Blitz mode and a packed Insane mode. Set the intensity, and drop your own custom text in the center with size and color controls. Great as a second-screen visual at a party while your playlist plays.
Keyboard Shortcuts (Desktop)
Space
Play / Pause
M
Mute
← →
Seek ±10s
↑ ↓
Volume ±10
N
Next track
P
Previous track
S
Shuffle
R
Repeat mode
F
Fullscreen
1-200
Jump to track # (type fast for multi-digit)
Example: Gym Playlist
1.
Paste your favorite tracks or load a curated album
2.
Tap each track's settings icon → set A-B loop on just the chorus → tap Next
3.
Hit Play — only choruses play, one after another, with crossfade. Non-stop energy!
4.
Set a sleep timer if listening in bed. Install as app for the best experience.
Works for gym, running, studying, cooking, driving — any activity where you want only the best parts.
Why don't I always see ads?
Ad display is controlled entirely by YouTube — based on the video owner's monetization settings, autoplay behavior, your region, and your YouTube account. Mixtuby does not block ads. They may appear at any time.
How do I listen with the screen locked?
Sign in with YouTube Premium. As of 2026, YouTube restricts background playback on third-party sites for non-Premium users. With Premium, Mixtuby unlocks background playback automatically — including lock-screen controls and Bluetooth headphone buttons.
Control from your car, lock screen & Bluetooth
Mixtuby talks to your device's built-in media controls — so you can skip tracks without touching the screen. Perfect for driving, the gym, or pocket listening.
🚗
Car & Bluetooth buttons
Steering-wheel, infotainment, and earbud/headphone next/previous and play/pause buttons control Mixtuby directly.
🔒
Title & artwork on display
The lock screen and car display show the current track title and artwork, with skip and pause controls.
🎙️
"Hey Google, next track" / Siri
Use Google Assistant on Android or Siri Now Playing on iOS to skip tracks by voice. (This is your phone's assistant — Mixtuby has no built-in voice command.)
With the screen on and Mixtuby in the foreground, these controls work for everyone. For the real hands-free case — screen off or phone in your pocket — you need YouTube Premium (see "How do I listen with the screen locked?" above).
