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Great Expectations is the leading tool for validating, documenting, and profiling your data to maintain quality and improve communication between teams

With over 120,000 users, Fake Filler is the most popular browser extension for testing forms. Fake Filler is the quickest way to fill all inputs on a page with fake data.

Generate massive amounts of fake (but realistic) data for testing and development in the browser and node.js

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.

PDF Mantis is a open source Java based high level API which aims to simplify PDF data extraction.