SendBySound

Send text between your phone, tablet, computer, or any device — using sound. No Bluetooth pairing. No WiFi. No cloud accounts. Just sound.

SendBySound is the fastest way to copy and paste text across devices. Type on one device, play the sound, and the other device receives it instantly. It works completely offline and keeps your data 100% private.


HOW IT WORKS

1. Open SendBySound on both devices
2. Tap "Listen" on the receiving device
3. Type your text and tap "Send by Sound" on the sending device
4. Done — your text appears on the other device

It's like copy and paste, but between any devices in the room.


WHAT YOU CAN SEND

- WiFi passwords — Share your network password with guests instantly
- Website links — Send URLs from your laptop to your phone
- Verification codes — Transfer 2FA codes and one-time passwords
- Meeting links — Share Zoom, Teams, or Google Meet links with others nearby
- Phone numbers & addresses — Send contact info between devices
- Notes & snippets — Quick text, code snippets, or anything up to 133 characters


WHY SENDBYSOUND?

✓ No internet required — Works completely offline using sound waves
✓ No accounts — No sign-up, no login, no cloud storage
✓ No pairing — Unlike Bluetooth, there's nothing to configure
✓ No app install on computers — Use SendBySound.com in any browser
✓ Cross-platform — Works between Android, iPhone, Mac, Windows, Linux
✓ Private — Your text is never uploaded to any server


WORKS EVERYWHERE

SendBySound is compatible across all your devices:
- Android phones and tablets (this app)
- iPhones and iPads (iOS app)
- Any computer with a browser (SendBySound.com)

Send text from your Android phone to a MacBook. From a Windows PC to an iPhone. From one phone to another. Any combination works.


PERFECT FOR

- Sharing WiFi passwords without typing or showing your screen
- Sending links from your computer to your phone
- Transferring 2FA codes when your authenticator is on another device
- Sharing meeting room codes or presentation links
- Quickly moving text between work and personal devices
- Sending info to someone nearby without exchanging contact details


PRIVACY FIRST

Your data stays between your devices. SendBySound processes everything locally — nothing is ever uploaded to our servers. The sound transmission is short-range by nature, making it more private than wireless protocols.

Note: Since SendBySound uses audible sound, anyone nearby can receive your transmission. Use common sense in public spaces.


COMPLETELY FREE

No ads. No premium tier. No in-app purchases. Just a simple tool that does one thing really well.


OPEN TECHNOLOGY

SendBySound is powered by ggwave, an open-source acoustic data transmission library. Your text is encoded into audio tones, transmitted through the speaker, and decoded by the receiving device's microphone.


Download SendBySound and start copying and pasting across devices in seconds.