Tools for Reverse Engineering Binary File Formats

On Quora I asked a question : https://www.quora.com/What-are-some-good-tools-to-help-reverse-engineer-obscure-binary-file-formats What tools are there to help reverse engineer obscure binary file formats? So far the answers aren’t particularly informative. Basically hex editors. But I feel there must be something more. Here’s a comment I replied to someone there : Well, if I try to imagine “something better”, …