Product Hunt Daily Digest: August 10, 2026

Yesterday’s batch on Product Hunt was all over the map, in the best way. Gesture Synth turns your webcam into a musical instrument. Mononote pins a single thought to your iPhone’s lock screen. And GitDecode, arguably the most serious of the three, belongs to the current wave of new developer tools that pair AI with graph-based code analysis. None of them had solidified a top ranking when I checked, so consider this an even playing field.

Gesture Synth

Gesture Synth is the kind of thing you open at 11pm intending to try for five minutes and then lose an hour to. It’s a free, browser-based synthesizer that tracks your hands through your device’s camera. No downloads, no sign-ups, no account creation. You wave at the screen and it makes sound.

The interaction model is genuinely clever. Your left hand picks chord degrees and shapes the harmony, and tilting it shifts between major and minor tonalities. Your right hand handles voicing, octave, volume, and filter. It’s not a gimmick, though it does take a moment to get your bearings. The visual feedback helps: you see hand landmarks and chord information on screen, which makes the connection between movement and sound easier to grasp.

The sound engine itself is modest but solid. Twelve musical keys, three waveforms named Warm Synth, Bright Synth, and Retro Synth, and instant response to hand movement. It’s not going to replace a DAW, and it wasn’t designed to. This is an instrument for people who want to make music without learning an instrument.

Privacy is handled well. Everything processes locally on your device, and recordings stay put. Speaking of recordings, you