The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.

I have put together these strings to create Naughty Keyboard – a very simple iOS app that gives you access to a custom keyboard to use these strings to test your application.

Clone the app, run it from Xcode then activate the keyboard. I'm pretty sure Apple wouldn't allow me to put this on the App Store.

The Big List of Naughty Strings (and this keyboard) is intended to be used for software you own and manage. Some of the Naughty Strings can indicate security vulnerabilies, and as a result using such strings with third-party software may be a crime. The maintainer is not responsible for any negative actions that result from the use of the list.

• Romain Pouclet (palleas)

NaughtyKeyboard may be freely distributed under the MIT License. See the LICENSE file.

The application icon is based on icons Tyler Glaude and Herbert Spencer from The Noun Project. Used under a Creative Commons BY 3.0 license.