InstantSMS helps people receive SMS verification codes online without sharing a personal phone number. We provide free public temporary numbers from countries around the world.
InstantSMS is a receive-only SMS platform. Browse available temporary phone numbers, open a public inbox, and read verification codes as they arrive - no account, app download, or payment required.
Developers can also integrate our REST API to automate SMS onboarding tests in staging and QA environments.
Our service is designed for low-risk, one-time verifications: trying new apps, completing marketplace sign-ups, protecting your personal number from marketing texts, and testing SMS flows during development.
Because every public inbox is shared, InstantSMS is not suitable for banking, cryptocurrency, government services, healthcare, or personal account recovery.
Numbers and messages are sourced from telecom providers behind a unified catalog. Availability rotates as numbers are refreshed, and message history is retained for a limited window.
We are committed to responsible use, transparent disclaimers, and clear communication about the public nature of our inboxes.