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Mass alerts for emergency rapid response

Our democracy is under attack. Mobilize thousands of people to protect our civil rights by sending alerts directly to their phones.

Anonymous* tiplines

Empower journalists, legal observers, and human rights defenders with a safe and lightweight way to receive sensitive tips and requests for aid without exposing anyone's identity.

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Donation and resource coordination

In the time of Covid-19 and environmental disaster, give organizers on the ground a tool to move resources quickly and safely.

Why use Signalboost?

Signalboost gives grassroots organizers the power to communicate with mass audiences securely and directly via message broadcasts and hotlines.

Reach thousands of people directly

  • Organizers need quick and direct ways to disseminate information. However, on social media platforms, important info is often obscured by algorithms and other posts. Signalboost messages go directly to subscribers' message inboxes.
  • Organizing in big group chats gets messy quickly and unnecessarily exposes strangers' phone numbers to each other. Broadcasts offer a quick way disseminate information directly to thousands of people.

Respond to people individually and privately

  • Subscribers to Signalboost channels can send in anonymous messages to the hotline and admins can respond directly and privately to that subscriber.
  • Subscribers do not see other subscribers' messages to the hotline. Only admins can see them.

Stay safe from surveillance

  • Signalboost sends messages over Signal, the most secure encrypted messaging service for phones.
  • By obscuring personal phone numbers, enforcing disappearing messages, and controlling who is allowed to join their channel, Signalboost empowers organizers to stay safe while speaking freely.

Signalboost is supported by:

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