Email & Password Generator

This tool produces synthetic emails and passwords for testing and demonstration. It targets QA engineers, developers, and data mockers who need disposable credentials that resemble real accounts. Users can configure domain, local-part patterns, password length, and character sets to create multiple credential pairs for automation pipelines. Generated data is intended solely for testing and is not connected to live services.
Generation is rule-based and relies on a cryptographic RNG to ensure password strength. A local-part pattern with placeholders like {n} can be used to produce distinct emails, optionally padded for readability. If a seed is supplied, results are reproducible across runs, enabling stable fixtures in CI jobs.
The tool does not verify mailbox existence or perform DNS checks; it generates syntactically valid emails and random passwords that meet configured policies. This makes it suitable for load tests, onboarding datasets, and development sandboxes where real user data must be avoided.
Common use cases include creating test user sets for API demos, performance testing, and verifying credential-related workflows without exposing sensitive information.