Amplitude Soundboard vs SoundTools Soundboard

Amplitude Soundboard is a desktop app for playing audio clips to express yourself and entertain friends. It runs on Windows, macOS, and Linux, with downloads listed for Windows x64, macOS on Apple Silicon and Intel, and Linux x64. Supported formats include AAC, AIFF, ALAC, FLAC, M4A, MP3, MP4, OGG, OPUS, and WAV. Clips can play through multiple output or input devices, with volume controls for the full app and individual clips. Users can assign hotkeys to sounds. The interface offers light or dark themes, custom tile backgrounds, and controls for tile size and grid dimensions. Listed languages include English, Spanish, Italian, Hungarian, Dutch, Polish, Russian, and Simplified Chinese. The app is free at free, and its repository is identified as GPL-3.0 licensed. The project page describes update notices at startup and automatic updating on Windows. Routing sound to an input such as a microphone requires additional audio-routing software. Linux hotkeys work under X11, not Wayland; macOS hotkeys require accessibility permission and an app restart, and a security warning may need to be bypassed because the app is not signed with an Apple Developer ID.

SoundTools Soundboard is a browser soundboard for recording, editing, organizing, and playing audio clips. Users can upload files, capture sound from a microphone, slice waveforms, and assign clips to tappable buttons. It accepts MP3, WAV, OGG, FLAC, AAC, and M4A, and can play multiple sounds at once. Boards save automatically in browser local storage, with an option to export a full board for backup or transfer. There is no fixed sound count, though performance depends on device memory. Audio processing takes place locally in the browser, and sounds are not uploaded to a server. Clips can be exported as WAV, processed with effects in SoundTools Voice Changer, then imported back into a board. The service runs in desktop Chrome, Safari, Edge, and Firefox, as well as on iPhone and Android. Its free plan costs nothing, with no account, installation, watermarks, or limits. Playback comes through speakers or headphones rather than virtual microphone routing.