Record audio from your microphone, or upload an audio file to begin editing
1 segment
00:00.000/00:00.000
Master · applies to the whole mix
Track effects
Export Audio
Format
Quality
Estimated Size— MB
Detail32-bit PCM
Record
No microphone connected
Configuration— kbps
Sample Rate from mic
Bit Depth estimate only
Channels from mic
Click to start recording
No microphone connected
REC00:00.000
00:00.000/00:00.000
Confirm
Editor
Play / PauseSpace
Split at playheadSorCtrlB
Delete selected segmentDeleteorBackspace
Copy selected segmentCtrlC
Paste after selected segmentCtrlV
Paste at playhead (splits if mid-segment)CtrlShiftV
Scrub backward / forward←→
Jump playhead back / forward 1sShift←→
Select segment left / right of playheadCtrl←→
Jump to segment start↑
Jump to segment end↓
UndoCtrlZ
RedoCtrlYorCtrlShiftZ
Open record modalR
Record Modal
Start / Stop recordingSpaceorR
Play / Pause previewSpace
CloseEsc
July 23, 2026
Reworked the multi-track view into a timeline: every track is now its own row with its controls on the left and its waveform on a shared time axis — no more separate track panel below the editor.
Added a single playhead that spans every track. Play now plays the whole mix and moves that one playhead; click a lane or the ruler to move it.
Drag any clip left or right to position it in time — clips can now sit at their own spots with gaps between them, not just as one block per track.
Drag a clip onto another track to move it there.
Added zoom and scroll: use the −/Fit/+ buttons or Ctrl/⌘-scroll to zoom, and the scrollbar or Shift-scroll to pan a longer project.
Click a clip to select it and focus its track; split, delete, and trim act on the focused track at the shared playhead. Splitting and moving clips can be undone.
July 23, 2026
Renamed the app from Nemo Recorder to Nemo Audio.
July 22, 2026
Reworked audio effects into two clear tiers. Each track now has its own Effects menu for source cleanup — Noise removal, Noise gate, EQ, and De-esser — that applies to everything on that track. To keep part of a recording out of an effect, move that segment to its own track.
Loudness normalization is now a master “Finishing” control on the tracks panel. It normalizes the whole mix (not each track separately, which gives an unpredictable final level), with one-click presets for YouTube, podcasts, and music. Preview it with “Play mix”.
Added a Trim Silence tool that removes silent stretches from the recording, with adjustable threshold and minimum duration.
Effects are non-destructive — they never alter your original audio, apply automatically to anything you record or upload later, and can be turned off at any time.
Added a Help panel with keyboard shortcuts, the changelog, and information about Nemo Recorder.
Added keyboard shortcuts for common playback, editing, and segment-navigation actions.
Added a right-click menu for copying, pasting, duplicating, and deleting segments.
You can now paste audio at the playhead; the editor splits the segment first when needed.
Improved the visual feedback when moving segments by dragging them.
The playhead now stays in place when you drag a segment to reorder it, instead of moving along with the segment.
July 21, 2026
Added drag-and-drop reordering for segments.
Added microphone support checks and an input selector so you can choose a recording device.
Recording settings (sample rate, bit depth, channels) now live in the recording panel.
Added support for more audio formats, with clearer guidance when a file cannot be imported.
Files larger than 500 MB are now rejected before processing begins.
Simplified the editor controls by moving editing actions into the main toolbar.
Added a GitHub link to the footer.
July 20, 2026
Added a dedicated recording panel with microphone status, recording settings, a live waveform, and a review step before adding audio to the editor.
Added a menu for appending more audio by uploading a file or recording again.
Added a confirmation step before discarding a recording.
Improved recording review playback, seeking, and playhead behavior.
Improved waveform rendering performance.
Added audio-file upload from the initial and ready screens.
July 19, 2026
Added undo and redo for segment edits.
Added keyboard controls for precise playback and moving between segments.
Added draggable playhead handles and clearer segment boundaries.
Improved segment selection feedback and added a skip-forward control for navigating between segments.
Simplified the editor layout and removed information that was not needed during editing.
July 18, 2026
Initial release of Nemo Recorder, a browser-based lossless audio recorder.
Nemo Audio
A browser-based, truly lossless PCM audio recorder. Built by Dave Ying.