Damage JSON quickly corrupts or mangles JSON data for testing or obfuscation. Apply tweaks like removing commas or breaking quotes live in-browser.
How to Use:
Paste your JSON into the left box or import a file using the “Choose File” button. Below that, you’ll find toggle switches to mess with your data try removing commas, breaking quotes, or slicing off the end. As soon as you make a change, the output updates live in the right box and gives you a character count. Use “Copy Output” to grab the result, “Export to File” to save it, or hit “Clear All” to reset everything. Nothing leaves your browser.
What Damage JSON can do:
Damage JSON is handy when you need to test how an app reacts to broken JSON or simulate corrupted data. It can strip out commas, replace quotes with slashes, or chop off the last few characters basically, enough to mess up the structure without making it completely unreadable. It’s all instant and client-side, so your data stays private. The tool includes smart file import for common text formats and keeps things responsive with flashing updates and a live character count.
Example:
Input:
{ "name": "Alice", "age": 30 }After removing commas and breaking quotes:
{ \\\"name\\\": \\\"Alice\\\" \\\"age\\\": 30 }Common Use Cases:
Sometimes you need broken data to test validation, to see what fails, or just to demonstrate what not to do. Damage JSON gives you that fast. It’s great for fuzzing, QA mockups, or just poking at parsers. You can tweak structure without touching logic, break format just enough to confuse a machine, or strip things to test error handling.
Useful Tools & Suggestions:
To experiment with broken structure, Change JSON Syntax can be used first to introduce tweaks that might cause errors. Then, once it’s been damaged, Validate JSON helps confirm exactly what’s wrong and where it breaks.