Ever typed a whole sentence in caps before noticing? Keytones plays a distinct sound for each key group (uppercase, lowercase, space bar, and modifiers) so your ears catch a stray Caps Lock before your eyes do. Tune Pitch, Length, Damping + Volume per group, import your own sounds, or, if audible feedback isn't an option, turn on Visual Feedback: a glowing screen edge that pulses with every keystroke. Per-app control, Siri + Shortcuts, instant triple-tap mute. One-time purchase, no subscription.
Hey Product Hunt! I'm Stefan, the maker of Keytones, a Mac menubar app.
I developed Keytones because I kept having trouble typing capital letters without realizing it. Keytones addresses this problem: It plays a different sound for uppercase letters, lowercase letters, the space bar, and the modifier keys (all customizable), so your ears will notice an accidentally activated Caps Lock key or an unpressed Shift key sooner than your eyes will.
What makes it different from "typewriter sound" apps:
Keytones isn't about imitating a mechanical keyboard. Each of the four key groups gets its own tone. You hear the difference between A and a immediately.
Key features:
Shape the sound for each key group with four knobs: Pitch, Length, Damping, Volume
Visual Feedback: A glowing border around the screen pulses with each keystroke, with the color and size varying depending on the key group. Can be turned on or off independently of keypress sounds. Ideal for environments where keypress sounds are disruptive or the audio output device has too much latency.
Per-app control: exclude apps or allow only the ones you pick
Import your own audio files via drag & drop
Instant mute: triple-tap a configurable modifier key (Right Command by default)
Siri & Shortcuts support
Remembers separate volume levels per audio device (MacBook speakers, headphones, Bluetooth)
this is such a specific and real problem to solve - i definitely lose a few seconds every week to realizing mid sentence that caps lock snuck on. curious how well the pitch differences actually hold up once noise cancelling headphones are on, or if most people end up leaning on the visual glow instead once they've tried both
The visual feedback mode is what I actually want for meetings. Does the screen glow overlay show up on top of all apps, or only when Keytones is active? Per-app control: UI setting or plist edit?
About Keytones on Product Hunt
“Distinct key sounds for uppercase, lowercase & more”
Keytones launched on Product Hunt on August 5th, 2026 and earned 109 upvotes and 7 comments, placing #14 on the daily leaderboard. Ever typed a whole sentence in caps before noticing? Keytones plays a distinct sound for each key group (uppercase, lowercase, space bar, and modifiers) so your ears catch a stray Caps Lock before your eyes do. Tune Pitch, Length, Damping + Volume per group, import your own sounds, or, if audible feedback isn't an option, turn on Visual Feedback: a glowing screen edge that pulses with every keystroke. Per-app control, Siri + Shortcuts, instant triple-tap mute. One-time purchase, no subscription.
Keytones was featured in Mac (103.6k followers), User Experience (367.4k followers) and Menu Bar Apps (12.2k followers) on Product Hunt. Together, these topics include over 44.6k products, making this a competitive space to launch in.
Who hunted Keytones?
Keytones was hunted by Stefan Keller. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Keytones stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Stefan Keller
Hey Product Hunt! I'm Stefan, the maker of Keytones, a Mac menubar app.
I developed Keytones because I kept having trouble typing capital letters without realizing it. Keytones addresses this problem: It plays a different sound for uppercase letters, lowercase letters, the space bar, and the modifier keys (all customizable), so your ears will notice an accidentally activated Caps Lock key or an unpressed Shift key sooner than your eyes will.
What makes it different from "typewriter sound" apps:
Keytones isn't about imitating a mechanical keyboard. Each of the four key groups gets its own tone. You hear the difference between A and a immediately.
Key features:
Shape the sound for each key group with four knobs: Pitch, Length, Damping, Volume
Visual Feedback: A glowing border around the screen pulses with each keystroke, with the color and size varying depending on the key group. Can be turned on or off independently of keypress sounds. Ideal for environments where keypress sounds are disruptive or the audio output device has too much latency.
Per-app control: exclude apps or allow only the ones you pick
Import your own audio files via drag & drop
Instant mute: triple-tap a configurable modifier key (Right Command by default)
Siri & Shortcuts support
Remembers separate volume levels per audio device (MacBook speakers, headphones, Bluetooth)
One-time purchase, no subscriptions, no ads!