A visual cheat-sheet for the 135 default keyboard shortcuts found in Audacity.
Ctrl N — New
Ctrl O — Open
Ctrl W — Close
Ctrl Q — Exit
Ctrl S — Save project
Ctrl Shift E — Export audio
Ctrl Shift L — Export multiple
Ctrl Shift I — Import audio
Ctrl Z — Undo
Ctrl Y — Redo
Ctrl X — Cut
Ctrl K — Delete
Ctrl C — Copy
Ctrl V — Paste
Ctrl D — Duplicate
Ctrl P — Preferences
Ctrl Alt X — Split cut
Ctrl Alt K — Split delete
Ctrl L — Silence audio
Ctrl T — Trim audio
Ctrl Alt I — Split new
Ctrl J — Join
Ctrl Shift J — Detach at silences
Ctrl B — Add label at selection
Ctrl M — Add label at playback position
Ctrl Alt V — Paste text to new label
Alt X — Cut labeled audio
Alt K — Delete labeled audio
Alt Shift X — Split cut labeled audio
Alt Shift K — Split delete labeled audio
Alt L — Silence labeled audio
Alt Shift C — Copy labeled audio
Alt I — Split labeled audio
Alt J — Join labeled audio
Alt Shift J — Detach labeled audio at silences
F11 — Toggle full screen
1 — Play one second
B — Play to selection
Shift F5 — Play before selection start
Shift F6 — Play after selection start
Shift F7 — Play before selection end
Shift F8 — Play after selection end
Ctrl Shift F5 — Play before and after selection start
Ctrl Shift F7 — Play before and after selection end
C — Play cut preview
F1 — Selection tool
F2 — Envelope tool
F3 — Draw tool
F4 — Zoom tool
F5 — Time shift tool
F6 — Multi tool
A — Previous tool
D — Next tool
Backspace — Delete
Alt Left — Move to previous label
Alt Right — Move to next label
Left — Short seek left during playback
Right — Short seek right during playback
Shift Left — Long seek left during playback
Shift Right — Long seek right during playback
Shift I — Change recording device
Shift O — Change playback device
Shift H — Change audio host
Shift N — Change recording channels
Shift Home — Selection to start
Shift End — Selection to end
Shift Left — Selection extend left
Shift Right — Selection extend right
Ctrl Shift Right — Selection contract left
Ctrl Shift Left — Selection contract right
Ctrl Shift F6 — Move backwards from toolbars to tracks
Ctrl F6 — Move forward from toolbars to tracks
Up — Move focus to previous track
Down — Move focus to next track
Ctrl Home — Move focus to first track
Ctrl End — Move focus to last track
Shift Up — Move focus to previous and select
Shift Down — Move focus to next and select
Enter — Toggle focused track
Left — Cursor left
Right — Cursor right
, — Cursor short jump left
. — Cursor short jump right
Shift , — Cursor long jump left
Shift . — Cursor long jump right
Shift P — Change pan on focused track
Alt Shift Left — Pan left on focused track
Alt Shift Right — Pan right on focused track
Shift G — Change gain on focused track
Alt Shift Up — Increase gain on focused track
Alt Shift Down — Decrease gain on focused track
Shift U — Mute or unmute focused track
Shift S — Solo or unsolo focused track
Shift C — Close focused track
Ctrl A — Select all
Ctrl Shift A — Select none
Z — Select at zero crossings
Ctrl Shift K — Select in all tracks
Ctrl Shift Y — Select in all sync-locked tracks
[ — Left at playback position
] — Right at playback position
Shift J — Track start to cursor
Shift K — Cursor to track end
Q — Toggle spectral selection
Ctrl Alt P — Previous clip
Ctrl Alt N — Next clip
Ctrl 1 — Zoom in
Ctrl 2 — Zoom normal
Ctrl 3 — Zoom out
Ctrl E — Zoom to selection
Shift Z — Zoom toggle
Ctrl F — Fit to width
Ctrl Shift F — Fit to height
Ctrl Shift C — Collapse all tracks
Ctrl Shift X — Expand collapsed tracks
Ctrl [ — Skip to selection start
Ctrl ] — Skip to selection end
Space — Play or stop
X — Play or stop and set cursor
Shift Space — Loop play
P — Pause
R — Record
Shift R — Record new track
Shift T — Timer record...
Shift D — Punch and roll record
P — Pause
J — Cursor to track start
K — Cursor to track end
Home — Cursor to project start
End — Cursor to project end
Ctrl Shift N — Add new mono track
Ctrl Shift M — Mix and render to new track
Ctrl U — Mute all tracks
Ctrl Shift U — Unmute all tracks
Ctrl R — Repeat last effect