Description: Batch RegEx is a free Windows program for quickly searching and editing text files using regular expressions. It's useful for renaming and finding/replacing text in multiple files.
Type: software
Pricing: Open Source
Description: Wolfram Alpha is a computational knowledge engine that allows users to get instant expert-level answers to questions on math, science, and many other topics by typing queries in plain language. It understands and computes answers across many domains.
Type: software