Big List of Naughty Strings for testing user-input data

In plain words

Big List of Naughty Strings is a dev tool that provides a collection of problematic input strings for testing software systems. It helps developers identify how their applications handle edge cases, special characters, Unicode sequences, and other unusual user inputs that commonly cause bugs or security issues. The resource is useful for quality assurance teams and developers building robust applications that need to safely process unpredictable user data.

written from the facts on this page · September 2026

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