letter_opener
Preview Rails and Ruby application emails in your browser during development instead of sending them.
What is letter_opener?
Letter Opener is a Ruby gem that intercepts emails generated during development and displays them directly in your web browser instead of sending them. It solves the problem of accidentally sending test emails to real addresses and eliminates the need to configure email delivery in development environments. The gem works with Rails, the Mail gem, Pony, and standalone ActionMailer implementations.
Ruby and Rails developers who need to test email functionality in their applications during development without risking accidental email delivery or configuring complex email services.
Developers choose Letter Opener for its simplicity and safety—it requires minimal configuration, works with multiple Ruby email libraries, and provides instant visual feedback without external dependencies or service setup.
Overview
Preview mail in the browser instead of sending.
Use Cases
Best For
- Testing Rails ActionMailer email templates during development
Related Projects
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