Open-source SDKs for ultrasonic data exchange between nearby devices. No Bluetooth, no WiFi, no pairing.
Beeping isn't new — it's back. Founded in 2015, paused in 2018, and reborn in 2026 — same idea, better hardware, open-source from day one.
Beeping starts — making data travel through sound.
The original team scatters. The idea stays parked.
Open-source, multi-stack, back for the new era.
Three simple steps. No hardware, no pairing, no setup.
Turn any data payload into an audio signal — audible or ultrasonic.
The encoded signal travels through the air via the device speaker. No network needed.
A nearby device picks up the audio with its microphone and extracts the original data.
Two lenses on what Beeping enables — pick the one you care about.
Every SDK supports both modes. Switch at runtime with one line.
Any scenario where two devices need to exchange small data payloads nearby.
Share links, contacts, or tickets with people nearby — just play a sound.
Pair devices instantly by playing a short audio handshake. Works with any speaker.
Configure smart devices by sending Wi-Fi credentials or setup data over sound. No app pairing flow.
Push interactive content to every phone in the venue simultaneously via the PA system.
The reference app for Beeping
Send a contact card, share a link, beam payment info — all over sound. Open-source Flutter app showing Beeping in production.
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