Music speed control
Slow down songs, lessons, and hard passages with precise increments, then return to full tempo when the phrase starts to land.
Free Chrome extension — pitch shift, looper, chords & EQ
Slow it down. Change the key. See the chords.
Any song. Any key. Any instrument.
Now supports
YouTube
Instagram Reels
♯ pitch shift
♭ transpose
▼ slow down
⟳ video looper
♪ chord detection
TransposeAny is a free Chrome extension and music looper for practising with video. Transpose a song into your range, slow the hard bar down without the chipmunk effect, loop it to the beat, and read the chords straight off the audio — on YouTube and Instagram Reels, without leaving the page.
Chrome extension
Completely free
No ads
No account
Nothing uploaded
On a phone? TransposeAny installs on desktop Chrome, so grab it there. Meanwhile, everything below is the real panel — have a look at what it does, then open transposeany.com on your computer.
Made for ChromeLives beside YouTube, Instagram Reels, and supported video lessons in the browser.
Runs on your machineChords and beats are worked out in your browser. No account, and nothing uploaded.
For every musicianSingers, guitarists, pianists, violinists, drummers, and teachers.
No adsCompletely free practice tools without ad clutter.
See it in action
Thirty seconds, start to finish.
The whole idea in one take: open a lesson, loop the hard phrase, and the practice room is already set up beside it — loops on the beat, metronome following, chords on the waveform.
Chord detection
See the chords in the song while you practice it.
Run an analysis on the section you are working on and TransposeAny listens to the audio the way you would: it follows the harmony, splits it at the beats, and writes the chord names along the waveform. No tab site, no chord sheet in another tab, no guessing whether that bar was a D or an F#m.
A real analysis, playing. Am7 · F · G · Am7 · F — read from the audio, not from a chord sheet. The chord you are on is the big one and the next waits beside it, both changing as the playhead crosses each change. It runs between the two loop markers and starts over the instant it reaches the end, which is what practising one bar actually looks like.
- Chord names on the timeline. Detected chords sit above the waveform, aligned to the beat grid, so you can see where every change lands inside the loop.
- Current and next readout. The chord you are playing stays front and center while the next one waits alongside and slides in just before the change arrives — enough warning to move your hand in time.
- Majors, minors, and sevenths. TransposeAny reads triads plus 7th, maj7, and m7 colorings, so pop, folk, blues, and singer-songwriter material comes back in the vocabulary you would write on a chart yourself.
- Loop-friendly. Chords are detected for the range you analysed and follow you through loops and replays; step outside that range and the readout dims instead of lying to you.
- Runs on your machine. The analysis happens inside your browser while the video plays — no account, and nothing uploaded. How that works.
Chord detection is an ear-training partner, not a transcription service. It gets ordinary progressions right most of the time and gives you a strong starting point on the rest — check it against your ear, then loop the bar and settle the argument.
Beat-aware looping
Introducing quantised loops — every repeat starts on the beat.
Because getting the loop right is half the work. A loop that starts a hair late teaches you to come in late. By hand you are nudging a scrub bar frame by frame, listening back, nudging again — and it is still a few milliseconds out. Once the section is analysed, TransposeAny takes the job off you: drag an edge anywhere near the beat and it lands on the beat.
where you drag — continuous
where the loop start lands — the nearest detected beat
watch START and the loop length change with it
- Quantised, not “nearly”. There is no tolerance window to fall outside of and no snap toggle to remember — drag an edge and it takes the nearest beat, every time. The only guard is a minimum gap so start and end cannot cross.
- A lead-in, so you start playing on time. Four beats of count-in by default — one bar, since the analysis marks the downbeats too — adjustable from one to eight. You get to the loop already counting instead of scrambling at the first note.
- A metronome that knows the song. The click sits on the beats found in the audio, not on a grid you tapped in. Put it on every beat, on eighths, or on 2 & 4 when you want the backbeat and nothing else.
Four beats, then you play.
1234▶ loop
The tempo readout follows your playback speed, so a passage analysed at 92 BPM reads 82.8 BPM when you slow it to 90% — the number you are actually playing against, not the one in the file.
Runs on your machine
It listens. Nothing uploads.
Chord and beat detection normally means handing your audio to somebody else: make an account, upload the file, wait in a queue, get a result back. TransposeAny does the listening here, in the page, while the section plays.
- No account, ever. Install it and start. There is no sign-up, no email, no licence key, and nothing to log in to before the first loop.
- Nothing to upload or convert. No pulling the audio out, no exporting a file, no waiting for a queue. It works on the video already in front of you.
- It works on videos you could never upload. A private lesson recording, an unlisted rehearsal, your teacher’s stream — anything you can play in the tab, you can analyse.
- Your audio never leaves the browser. Detection runs on your own machine while the section plays. No copy of the audio is sent anywhere, kept anywhere, or used to train anything.
Worth checking rather than believing. TransposeAny does send anonymous usage counts — which controls get used, never what you watch, and the video ID is hashed before it leaves. You can switch that off in settings, and the audio path is unaffected either way. It is all written down in the privacy policy.
New — tone & EQ
EQ the mix so you can hear the part you are learning.
Some recordings bury the thing you are trying to copy. The bass line sits under everything, the guitar disappears into a dense mix, a bright lesson video wears your ears out twenty minutes in. TransposeAny gives you three ways to move the balance — and remembers which one you used on that song.
- Saved with the song. Like speed and pitch, your tone comes back the next time you open that video. It is part of the practice session, not one global setting you re-dial for every lesson.
- Level matched by default. Boosting anything also makes it louder, and louder always sounds better. TransposeAny cancels the volume change so you are judging tone instead of volume.
- Hold to compare. A/B drops back to the untouched audio for as long as you hold it — the quickest way to tell whether a change is helping or just different.
- A depth control, not only a curve. Set a shape you like, then dial the whole thing in and out with one slider until you find how much of it is enough.
- Stacks with instrument focus. Guitar Lift brings a buried part forward and Vocal Drop pulls the lead vocal back; tone shaping works on top of both.
- Off is genuinely off. With the power switch off the audio passes through untouched — no processing, no colouring, nothing left behind to undo.
An equaliser cannot un-record a mix. What it can do is tilt the balance far enough that the part you are copying stops hiding — and because it is matched for level and saved per song, you can set it once and trust what you hear the next time you sit down with that lesson.
Music practice extension
Everything you need for pitch, speed, chords, and loops stays beside the video.
The moment a lesson stops working is usually specific: one phrase too fast, one key too high, one bar you keep fluffing. A plain video looper leaves you to solve all three by hand.
- 25% to 200% — tempo without pitch drift, ±12 semitones without tempo drift
- It remembers — speed, pitch, tone and loop points come back per video, so tomorrow starts where today stopped
Pitch shift and transpose
Change key, transpose a lesson into your vocal range, match your instrument, or study a part in a more comfortable pitch.
Video looper markers
Set start and end points, loop sections of YouTube and Instagram Reels videos, replay exact passages, and keep unsaved loops restored per video.
Tone and EQ
Drag a pad, sweep a single band, or set ten sliders. Lift a buried bass line, bring the guitar forward, or take the edge off a harsh recording — level matched, and saved with the song alongside Guitar Lift and Vocal Drop.
Beat analysis
Generate beat grids for loops, use count-ins, and keep metronome timing lined up with playback.
Practice session memory
Return to a lesson with working speed, pitch shift, loop, and timing settings restored for that video.
Chord detection
Analyze a section and TransposeAny reads the harmony from the audio, lines chord names up with the beats, and shows the current and next chord as playback moves.
Waveform navigation
See the shape of the section, click anywhere to jump, and set loop points against beats and chord changes instead of guessing at a scrub bar.
Saved loops and library
Keep the passages worth returning to, add bookmarks while you play, and reload any saved section from the library on the next practice run.
Why TransposeAny
Built for the hard bar, not the whole song.
A speed slider gets you part of the way. The rest of practice is finding the four seconds that are wrong, hearing them clearly, moving them into a key you can reach, and coming back tomorrow without setting it all up again.
Practice-first controls
Tempo, pitch, loop points, waveform, chords and metronome are all one panel away, so you are not hunting through menus in the middle of a phrase.
Works across musicians
Singers, guitarists, pianists, string players and drummers all end up using the same four controls. Nothing here assumes an instrument.
Saves the learning trail
Bookmarks, saved loops, and per-video state mean tomorrow starts where today stopped, not at the top of the video.
Lightweight by design
No ads, no subscription, no DAW to open first. Load the lesson and start.
Completely free, with no ads.
Music learners already pay with time and attention. Pitch shift, speed control and looping stay out of the way of the phrase in front of you.
- No ads
- No paywall
- No separate app
Product views
The panel, and the practice it is for.
The panel is 400 pixels wide and sits beside the lesson — near enough to reach mid-phrase, far enough to leave the video alone.
For musicians
Practice songs, lessons, and riffs in the key and tempo you need.
Pitch shifter, speed changer and video looper in one panel — because learning a part means doing all three to the same eight bars, over and over, until they stop falling apart.
Singers
Transpose songs for singing practice, move lessons into a comfortable range, and loop difficult phrases without leaving the video.
Guitar practice
Slow down guitar lessons online, repeat riffs, read the detected chords for a song with no tab, and use pitch shift when a recording sits in the wrong key.
Piano and keyboard
See the chord changes as they arrive, loop them, practice hands separately, and change pitch or speed while studying music videos.
Drums, violin, and teachers
Use beat-aware loops, count-ins, bookmarks, and saved practice sections for students, rhythm work, and instrument study.
Workflow
Find the phrase, get it in your key, go round again.
Open a lessonTransposeAny connects to YouTube, Instagram Reels, and supported video pages from the side panel.
Mark the passageSet music loop start and end points around the part that needs attention.
Adjust playbackDial in speed, pitch shift, mix, and metronome options, then analyse the section — in your own browser — to get beats and chords.
Save what mattersKeep loops and bookmarks in the library, while working state restores per video.
Questions
Slowing down, changing key, and what happens to your audio.
The things people ask before installing a practice tool — answered straight.
Can I slow down a song without it sounding like a chipmunk?
Yes. Speed and pitch are separate controls, so you can slow down anything from 25% to 200% and it stays in the original key — no chipmunk, no seasick warble. Pitch preservation is on for every video by default.
Can I change the key without changing the tempo?
Yes, and the other way round too. Transpose up or down by up to 12 semitones and the tempo does not move; change the speed and the key does not move. The detected chord names transpose with you, so what you read matches what you hear.
Which sites does TransposeAny work on?
YouTube and Instagram Reels, on desktop Chrome. It only asks for access to those two sites — it cannot see any other page you have open.
Is TransposeAny really free?
Yes. No ads, no paywall, no trial, no account, and nothing to install beyond the extension itself.
Does my audio get uploaded anywhere?
No. Chord and beat detection runs inside your browser, on your machine, while the section plays. No copy of the audio is sent anywhere, kept anywhere, or used to train anything — which is also why it works on private or unlisted videos you could never upload to a service.
How long does analysing a section take?
Usually no time at all. TransposeAny listens along quietly while the video plays, so by the time you loop a passage it has typically already heard it — the chords and beats appear at once. If you jump to a section it has not heard yet, it listens to that region once in real time while it plays. Either way the results are cached for that video and come back instantly next time.
How accurate is the chord detection?
It reads triads plus sixths, sevenths, major and minor sevenths, half-diminished, augmented and suspended chords — thirteen qualities in all — straight from the audio. It is an ear-training partner rather than a transcription service: ordinary pop, folk and blues progressions come back right most of the time, and the rest is a strong starting point to check against your ear.
Will my loops still be there tomorrow?
Yes. Loops, bookmarks, speed, pitch and tone are all saved against that specific video, so reopening a lesson picks up where you stopped instead of at the top of the video.
Can I boost the bass or bring a buried guitar forward?
Yes — that is what the tone control and the 10-band equaliser are for. Drag a pad by feel, sweep a single band to find whatever is hiding the part, or draw a curve across ten bands. It is level matched, so a boost cannot fool you into thinking it sounds better just because it got louder.
What languages does it support?
Six: English, Spanish, Portuguese (Brazil), German, Japanese and French. It follows your browser language automatically.
Built for repetition
Make YouTube and Instagram Reels music videos behave like a practice room.
A free Chrome extension for pitch shift, speed control, looping, chord detection and EQ. No ads, no paywall, no account, and nothing else to install — the analysis runs on your own machine.