Sing, record, finish — all in your browser.
Recording, editing and mixing with no install. 2 tracks free, 8 on Concerto. Just open your browser. Your audio stays on your device unless you choose otherwise.
Who it’s for.
Cover & “play-it” creators
Layer vocals over a backing track, add harmonies, mix and export — release-ready in the browser.
Performers & home recordists
Capture instruments, singer-songwriter takes and recitals — polished without expensive gear.
Record, edit, and finish.
KUON DAW — browser-native multitrack studio
Multitrack recording
2 tracks free, 8 on Concerto. 16/24/32-bit, 44.1k-96kHz, mono or stereo.
Waveform editing
Cut, move, fade and crossfade intuitively, right on the waveform.
Stack takes, keep the good parts
On a comping track every retake stacks up; swipe the good parts and they join into one take, with an automatic 12 ms crossfade at each seam (free).
Mix & export
Balance levels and pan, then export WAV (16/24/32-bit) or MP3 (192/320kbps).
Never lose a take
Recordings are saved locally about once a second — auto-recovered even after a crash.
Continue anywhere
Any OS, any device, one URL. Optional cloud save (paid) resumes across devices.
What the page above left out.
All of it runs in the browser today. Free items and Concerto items are marked separately.
Measure the room first
Record four seconds of silence and the room’s noise floor, mains hum and low-end build-up are measured, then a matching effect chain is assembled for you. You can subtract the room before you record.
Write out the chord chart automatically
The chord progression is estimated from the loaded audio and laid out as a bar-by-bar chart — a first draft for transcription and a map for practice (the estimate assumes 4/4).
17 effects
Compressor, de-esser, gate, channel EQ, 10-band EQ, filter, hum remover, reverb, delay, chorus, flanger, phaser, doubler, saturator, stereo width, gain and 3-band EQ. Two of them (EQ and reverb) are on the free plan; Concerto opens all 17. The same engine as KUON DAR.
Record the moves, not just the setting
Move a fader or the pan while the song plays and the movement itself is recorded, then replayed the same way every time. The small lift you give the chorus stays in the song.
80 levels of undo
A single drag counts as one step, so 80 levels really means 80 actions. Cut too far or move too much and you can simply walk it back.
Hand the bounce straight to KUON DAR
Choose “Open in DAR” as the export destination and the mix lands directly on the KUON DAR bench — no saving and reopening. Strict loudness measurement and pre-delivery checks happen there.
Cloud saves are verified before they replace anything
Cloud save never happens on its own. When you choose it, each part is verified with SHA-256 and the previous version is replaced only after the new file has fully arrived. If the connection drops, the same file can be saved to your device on the spot, so nothing is lost.
Never lose the take that mattered.
While recording, audio is written to your device about once a second. Even a closed tab, a crash or a power loss costs about a second at most, and the next launch offers automatic recovery. Your data stays local by default; cloud save is optional (paid) and only then syncs across devices.