A lightweight, open-source Bulk SMS Sender that lets you queue and send SMS messages via common SMS gateway APIs (Twilio, Nexmo/Vonage, Plivo) with retry logic, rate limiting, templating, and delivery-status tracking. Ready for small businesses, devs, and integrations.

: Projects like farukalpay's SMS-Sender use proxy servers to rotate IPs, which helps prevent blacklisting during large campaigns.

These are scripts (usually Python, Node.js, or PHP) that connect to third-party APIs like Twilio, Plivo, or AWS SNS.

: Sending 1,000 messages in one second will likely get your number flagged or blocked by carriers. Look for GitHub projects that include a "delay" or "sleep" function.

: Regarded as a "scalable and reliable" system capable of handling up to 14,000,000 messages.