Features
Mixtuby turns YouTube music into a calming Vibe Mode packed with relaxing games and tools — no signup, instant.
Vibe Mode tools
Tap any tool to jump straight into Vibe Mode with it open. Each one plays over your music.
Karaoke — Synced Lyrics
Sing along to whatever is playing with time-synced lyrics that scroll line by line, perfectly aligned to the music. No app, no signup — it works on any YouTube song with available lyrics.
How to use
Start any song in Mixtuby.
Open Vibe Mode (moon icon) and tap Karaoke.
Lyrics appear and follow the track automatically — the current line is highlighted.
Auto line-sync
The active lyric line highlights and scrolls in real time so you never lose your place.
Works over your music
Karaoke runs as an overlay on the song already playing — switch tracks and the lyrics follow.
Does Mixtuby karaoke work on any song?
It works on any YouTube song that has time-synced or plain lyrics available. If a song has no lyrics on file, karaoke simply stays off for that track.
Do I need an account for karaoke?
No. Karaoke is free and works instantly with no signup.
Rubber Duck (DJ Quack)
Inspired by the legendary debugging technique from "The Pragmatic Programmer" by Andrew Hunt & David Thomas. When you're stuck, explain the problem step-by-step to a rubber duck — articulating it forces your brain to think clearly and often reveals the solution on its own. Tap DJ Quack and he quacks in time with the beat.
How to use
Open Settings (gear icon) and enable Rubber Duck.
A duck button appears in the header — tap it to summon DJ Quack.
Tap the duck to make him quack on the beat, or just talk your problem through.
12 unique skins
Browse with the left/right arrows — from classic yellow to themed variations. Your pick saves automatically.
31 animated affirmations
Encouraging phrases with a scale-up + particle burst across 4 moods (listening, encouragement, approval, thinking). They appear every 12–30s while playing.
What is the rubber duck feature for?
It's a focus and problem-solving companion based on "rubber duck debugging" — explaining a problem out loud to the duck helps you think clearly while music plays.
Baby Sleep Game
A relaxing falling-ducks game designed to help you and your baby fall asleep, built on clinically validated sleep psychology — not just a gimmick. Catch the slowly falling ducks while the screen gently dims toward darkness.
How to use
Enable it in Settings → Baby Sleep Game.
Open Vibe Mode (moon icon in the navbar).
Tap Sleep → choose a playlist → set the timer → Start.
Ducks fall slowly — tap to catch them. The screen dims over time. Drift off.
Cognitive Shuffle
Random visual stimuli (ducks at different positions, sizes, hues) stop your brain forming coherent anxious thoughts. Dr. Luc Beaudoin (SFU, 2015) showed this cuts sleep onset by 40–60%.
Bilateral tapping
Repetitive tapping activates the parasympathetic nervous system (Porges' Polyvagal Theory); the haptic buzz on each catch reinforces the calming reflex.
Progressive dimming
The screen darkens from 0% to ~95% over the timer, mimicking a natural sunset to cue melatonin release.
Descending stimulation
Ducks spawn less often and fall slower as time passes — your nervous system follows the fading intensity toward sleep.
How does the Baby Sleep Game help parents?
The baby falls asleep from the music (lullabies, rain). You fall asleep from the game — it keeps your hands busy so you don't scroll your phone (blue light keeps you awake). Through co-regulation, your calm helps the baby settle faster.
Is the Baby Sleep Game free?
Yes — it's free, with no account, and pairs with built-in sleep playlists like Rain, Forest, 528Hz and Lullabies.
Typing — Falling Words
Catch falling words by typing them before they reach the bottom. A fast, satisfying typing game that scores you on speed and accuracy while your music keeps the rhythm.
How to use
Open Vibe Mode and tap Typing.
Words start falling — type each one and press to clear it before it lands.
Build a streak. Your best score is kept on the leaderboard.
Speed + accuracy scoring
Every cleared word adds points; misses cost you. It's a genuine typing workout, not a timer-killer.
Lyric-aware words
When lyrics are available, the falling words can come from the song you're playing — so you type along to the track.
Is it good for practising typing?
Yes. Because it scores both speed and accuracy and feeds words continuously, it doubles as a light typing-practice game you can play to music.
Breathe — Guided Breathing
Follow guided breathing patterns with on-screen pacing to calm anxiety, lower stress and fall asleep faster. Seven science-backed techniques — the Physiological Sigh (Dr. Huberman) for fast relief from panic, 4-7-8 (Dr. Weil) to wind down for sleep, Box breathing (Navy SEALs) to steady you under stress, and Long Exhale (4-8) with a pursed-lip out-breath for an unhurried wind-down — each with calm visual and audio cues.
How to use
Open Vibe Mode and tap Breathe.
Pick a technique (e.g. Box 4-4-4-4 or relaxing 4-7-8).
Breathe in, hold and out following the expanding circle and the soft cues.
The right technique for each moment
Panicking? The Physiological Sigh calms acute stress in as little as 20 seconds. Stressed? Box breathing steadies you. Can't sleep? 4-7-8 winds the body down. Every technique is tagged with its benefit so you choose in one tap.
7 proven techniques
Box, 4-7-8, coherent breathing and more — each with its own pacing for calm, focus or sleep.
Real breath audio cues
Natural breath sounds mark each phase plus a soft tone at the end — never robotic, never stretched.
Which breathing technique is best for sleep?
The 4-7-8 pattern (inhale 4, hold 7, exhale 8) is widely used to fall asleep faster because the long exhale calms the nervous system. Box breathing is better for focus.
How do I stop a panic attack with breathing?
Try the Physiological Sigh (Dr. Andrew Huberman, Stanford): two short inhales through the nose, then one long, slow exhale through the mouth. It is the body's natural reset — research suggests it eases acute stress quickly by activating the parasympathetic nervous system. Repeat a few rounds. This is a relaxation aid, not a substitute for medical care.
What breathing exercise lowers cortisol?
Slow breathing with a long exhale — like 4-7-8 and coherent breathing (5 in, 5 out) — stimulates the vagus nerve and the parasympathetic system, which research links to lower cortisol and stress. A few minutes of paced breathing is the simplest way to start.
Does box breathing reduce stress?
Box breathing (4 in, 4 hold, 4 out, 4 hold) is used by Navy SEALs to stay calm under pressure. Its even rhythm helps balance the autonomic nervous system and steady focus during stress.
Party — Light Show
Turn your screen into a full-screen light show for your music — fireworks, gold willows, kaleidoscopes and lasers in scenes of cinema colours. Prop your phone up and your room becomes the dance floor.
How to use
Open Vibe Mode and tap Party.
Effects burst at random. Pick Tap and every tap on the show makes a vortex that explodes from your finger, or Mic to let the phone listen to the room (analysed on the phone only, nothing recorded or sent).
Double-tap the show for full screen where your browser allows it, and prop the phone facing the room.
A new colour scene every few seconds
Colours come in scenes of three from a cinema palette and change by themselves. Every new song opens with a finale and a new scene; Insane and Blitz show two scenes at once.
Never goes blank
Effects keep coming while the song plays, and the screen stays on. When the music stops, the show settles into a soft glow instead of going dark.
Can I use Party as a music visualizer for a room?
Yes — it's built for it. Full screen, and bright enough to light a room when you prop your phone or cast it to a screen. It cannot read the YouTube sound: the beat comes from your taps, or from the phone's microphone listening to the room.
Shooter — Rhythm Arcade
Shoot incoming targets in rhythm with the track for a fast-paced arcade game that turns any song into a level. Tap to fire, chain combos, and climb the leaderboard.
How to use
Open Vibe Mode and tap Shooter.
Targets fly in to the beat — tap to shoot them before they pass.
Chain hits for combo multipliers and a higher score.
Beat-matched targets
Targets and effects ride the music, so every song plays like a different level.
Smooth on old phones
Bullets and explosions are animated to stay smooth even on low-end devices, without dropped frames.
Does the Shooter work with any song?
Yes. It reacts to whatever you're playing, so any track becomes a playable rhythm level — no special files needed.
Playprint — An Album Made for You
Playprint is a free AI playlist generator that asks five quick things — your age or a decade, the genre and how hard, what you are doing, who is listening and how long — and builds an album of 5 to 30 tracks out of Mixtuby's hand-picked playlists, with a name and a cover. No searching, no typing, no account.
How to use
Open Vibe Mode and tap Playprint, then Start.
Answer five taps: age or decade, genre and intensity, the occasion or a mood, who is listening and when, and how many tracks.
Optionally add a line in your own words — "late-night highway, nothing shouty".
Tap Build my album, untick anything you do not want, and press play.
Five taps, not a search box
Most people never type into a search box. Playprint turns a few honest answers into an album you recognise as yours.
A new album every time
It remembers what it already gave you on this device and moves those songs to the back, so the next album does not repeat the last one.
Free, and yours to keep
Building and playing albums is free with no account. Sign in only if you want to save one; saved albums stay private.
Is there a free AI playlist generator that needs no account?
Yes. Playprint on Mixtuby builds a 5 to 30 track album from five quick answers, free and without signing up. An account is only needed to save an album.
Can it make a playlist for a party, a road trip or studying?
Yes — the occasion question covers moments like a party, a drive, a workout, focus or winding down, and the company and time-of-day answers tune it further.
Where does the music come from?
From Mixtuby's own hand-picked playlists, played through the official YouTube player. Playprint picks and orders; it never downloads anything.
What happens to my answers?
They are used to build your album and are sent to OpenAI to choose playlists and name it, without any account details. See the Privacy Policy for the full picture.
Drive & Run — Music Over a Live Map
Put your phone in a car mount and keep your music playing over a live street map with your speed, the speed limit when OpenStreetMap knows it, and a route line to where you are going. Switch to Run and the same map shows your distance, time and average pace. Free, no app to install, and your location never leaves your phone.
How to use
Start a playlist, open Vibe Mode (moon icon) and tap Drive.
Optional: type an address in Where to? and tap a result to draw the route.
Tap Start Drive — or Start Run — and allow location when your phone asks.
Speed and speed limit
Your speed in large type, and the posted limit from OpenStreetMap when the road has one on file.
Route line in your colour
A thick route line in violet, yellow, red or blue, the next turn on top, arrival time, and voice directions in your phone's language.
Run mode
Distance, time and average pace over the map, with the path you ran drawn as you go. Pause keeps the clock honest.
Day, night and your marker
Map colours switch at local sunset. Pick a yellow car, a blue arrow or the Mixtuby logo — and a little runner in Run.
Can I use Mixtuby while driving?
Yes — Drive is built for a phone in a car mount: music keeps playing over a live map with your speed. Set it up before you set off and keep your eyes on the road; it is not a certified navigation system, and road signs always come first.
Can I track a run while listening to music?
Yes. Tap Start Run: Mixtuby shows your distance, time and average pace over the map while your playlist keeps going. No account and no extra app needed — a free account only if you want to save it to Your runs.
Does Mixtuby see where I am?
No. Your location stays on your phone. It is sent only to the free map services that draw the map, the speed limit and the route (OpenStreetMap-based, plus AWS elevation tiles when 3D view is on) — never to Mixtuby, and it is not saved.
Pocket Tools — Money, Units and Sums
A currency converter that shows what each kind of place really gives you — fintech card, exchange office, bank card, bank counter, card machine, airport desk — next to a unit converter, a calculator with its own keys, shoe sizes, cups to grams, the fuel cost of a trip and the days between two dates. Every sum is worked out on your phone, over your music.
How to use
Open Vibe Mode and tap Pocket Tools.
Tap a row — Money, Convert, Calc, Sizes, Kitchen, Trip cost or Days. The one you used last opens by itself next time.
Type one number: the answer appears as you type, in a table.
In ⚙ pick the language and Metric or Imperial.
The rate you get, not only the rate
The big number is what the best place gives you, and the ✓ line names that place; under it, the official rate — BNR for the leu, the European Central Bank for the rest — the same to sell and to buy, then what each kind of place typically gives you, best first. I buy turns it round, to what each place charges you.
A calculator with its own keys
The phone keyboard never covers the answer. 120 − 30 % = 84, the way a shop does it, plus a discount and which pack is cheaper per kg. The restaurant bill has its own row: the tip, the total and what each person pays.
Units, sizes, kitchen, days
Length, weight, temperature, volume, speed and area in every unit at once; adult shoe sizes by foot length; US cups and spoons in grams by ingredient and the oven in °C, °F and gas marks; the days between two dates.
Nothing you type is sent
Every sum is worked out on your phone. Only the day's public exchange rates come from our server, the same for everyone, and the last ones stay on your phone for offline use.
Why does each place give a different amount?
Each kind of place adds its own margin to the reference rate. Pocket Tools uses the typical margin for each, checked on public sources, so it is an estimate: your bank, the country and the amount can move it. When a card machine or ATM offers to charge you in your own money, paying in the local one is almost always cheaper.
Where do the exchange rates come from?
From the National Bank of Romania for any pair with the leu, and from the European Central Bank for the rest, with the date they were published.
Can I switch to miles and gallons?
Yes. In ⚙ pick Imperial: Convert and Trip cost follow it.
Stars & Constellations Theme
Enabled by default — an animated night sky fills the background with twinkling stars, slow constellations, and occasional shooting stars. Combined with Vibe Mode and the duck game, it creates an immersive "falling asleep under the stars" experience. Turn it off any time in Settings → Stars Theme.
Notes — Ideas & Todo
Have an idea or flash memory while the music plays? Tap the note button next to Your Mood. Ideas is a corkboard of colorful sticky notes — pin a thought, pick a color, drag the ⠿ grip to rearrange, just like real paper. Todo is a ruled notebook page: write tasks, check them off, and set an ⏰ reminder that pings your device at the exact time — even without an account.
Sticky Corkboard
8 paper colors (even black), numbered notes, drag & drop with the ⠿ grip — they slide aside and settle with a tilt, like the real thing.
⏰ Todo Reminders
"The match starts at 20:00" — tap ⏰ on a task, pick the time, get a notification on this device at that exact minute. No account needed.
⚙ Your Handwriting
Font size 13-48px, six ink colors and bold — the notebook lines scale with your writing so it always sits on the rules.
Private & Synced
Notes save on your device; sign in and they sync encrypted across all your devices — order, colors and checkmarks included.
More Features
Crossfade (Desktop)
Smooth transitions between tracks (1-30s) on desktop. Or enable gapless for instant switches.
A-B Loop per Track
Loop just the chorus, a solo, or any segment. Set loop count and what happens after.
Sleep Timer
15 min to 2 hours. Music fades out automatically. Perfect for bedtime.
30 Mood Playlists
Chill, Study, Gym, Baby, Rain, Forest, 528Hz, Meditation — tap your mood and music starts.
Per-Track Speed
0.25x to 2x on each track. Slow down for practice, speed up for energy.
No Account, No Card
No credit card for anything on this page. Everything auto-saves in your browser.
Frequently Asked Questions
Is Mixtuby free? ＋
Yes. Everything Mixtuby is built around — playlists, search, karaoke, synced lyrics and the Vibe Mode tools on this page — is free, with no account and no credit card, and it all saves automatically in your browser. A small optional subscription adds Workout Mode and a few extra tools, and nothing else sits behind it.
Do I need an account to use Mixtuby? ＋
No. Playlists, search, and every Vibe Mode tool on this page work without signing up. A free account adds favorites and sync across devices; only the optional subscription features need one.
How is Mixtuby different from YouTube? ＋
YouTube stops between videos and pulls you toward recommendations. Mixtuby plays music continuously, organizes everything by mood, and adds karaoke, synced lyrics, A-B loop, and Vibe Mode — the original Mixtuby experience — on top of the same YouTube player.
Can I play my own YouTube playlists on Mixtuby? ＋
Yes. Paste any public YouTube playlist link into the Add Tracks tab and it imports instantly, then plays continuously like every built-in mix.
What does the crossfade do? ＋
Crossfade fades the end of one track out and the start of the next in, so the music never cuts hard. It is a desktop feature, adjustable from 1 to 30 seconds, or switch to gapless for instant cuts.
What is Vibe Mode in Mixtuby? ＋
Vibe Mode is a calm full-screen mode with relaxing games and tools that play over your music to help you wind down and fall asleep.
Does Mixtuby work on my phone? ＋
Yes. Mixtuby runs in any modern browser on phone, tablet, desktop, and TV, and installs as an app in two taps from the browser menu.
Can I watch movies or listen to podcasts on Mixtuby? ＋
Yes. Mixtuby plays any YouTube content, not just music. You can watch classic films — like the Louis de Funès collection — listen to podcasts, or queue long DJ sets. Everything streams through YouTube's official embedded player.