Fretburn
Ten original heavy tracks. Or any song you own.
Free, in your browser, nothing to install. Keys A S D F G, Space to burn. Tap on a phone.
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One
Pick a track
Ten songs written for Fretburn, from a hard-rock opener through thrash, death metal and djent. Four difficulties each.
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Two
Hit the gems
Press each lane's key as its gem crosses its ring on the hit line. Hold the long ones until the tail runs out.
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Three
Light the burn
Clear a run of gold-edged gems to fill the Burn. Light it and every point counts double while the neck is on fire.
Duo
Two necks on one screen. Player 2 can take the bass part, you share one amp, and the joint score has its own board.
Prove itLeaderboard
Top ten on every house track and difficulty. Each posted run is replayed on the server, key press by key press.
Your songs stay yours
Load an MP3, M4A, WAV, OGG or FLAC you own. Your browser listens to it, finds the beat and writes a chart on all four difficulties. It takes a few seconds.
The file stays on this device. Fretburn hosts no music but its own house tracks, which your browser plays from the notes.
Open your songsTonight
Listening…
Your shelf
No songs yet. Load one you own and it gets charted right here.
Leaderboard
The top ten on every house track, solo by difficulty and duo by joint score. Post from the results card after a run. The server replays every posted run from its key presses and keeps the score it gets, so a number typed in by hand never makes the board.
How to play
The gems
Gems slide down the neck toward the strikers, the coloured rings on the hit line. Press a lane's key when its gem meets its ring. Two gems side by side are a chord: press both.
Easy uses the first three lanes, Medium four, Hard and Expert all five. Change keys in Settings.
Timing
Heat
The gauge is the amp's temperature. Hits warm it, misses cool it. Let it fall to the bottom and the valve blows, which ends the song. Turn on No-fail in Settings to play through anything.
Burn
Gems with a gold edge are a burn phrase. Hit every one in the phrase to add a quarter to the Burn meter. At half full, press Space (or tap the meter) to light it: every point counts double until it burns out.
Duo
Two players, one keyboard or one screen. Pick Duo on the setlist: each player gets a neck, and on house tracks player 2 can take the bass part. You share one amp, so the heat gauge rises and falls with both of you, and your scores add up to one joint score with its own board.
Player 2's keys. On a touch screen, each player plays their own side.
Versus
Same two necks, but each player has their own amp and the higher score wins. If you pick different difficulties or parts, the winner is whoever gets closer to a perfect run. Blow your amp and you're out while the other player plays on. Versus runs don't go on the leaderboard; this device keeps the head-to-head count.
Stars
Stars measure your score against a perfect run without burn. A perfect run earns five; burn makes up for a few misses.
Your own songs
Fretburn charts a song from its sound: onsets for the notes, the beat for the grid, each note's pitch for its lane, so the same note tends to sit in the same lane. Songs with a clear beat chart best. If notes feel early or late on every song, use Calibrate in Settings.
Settings
Keys
Click a lane, then press the key you want.
Player 1
Player 2 (Duo)
Timing offset
If notes feel late on every song, the sound reaches you later than the picture. Calibrate measures it: tap along to eight clicks.
Play
Your data
Scores and your loaded songs live only in this browser. Clearing site data removes them.