There are a few hex/disk editors that support "templates" (but you need most times to create those yourself). Here is a sort of "curated list" of related tools

There are a few hex/disk editors that support "templates" (but you need most times to create those yourself). Here is a sort of "curated list" of related tools: https://github.com/dloss/binary-parsing https://github.com/dloss/binary-parsing The most complete/populated I know of is Kaitai: http://kaitai.io/ http://kaitai.io/ http://formats.kaitai.io/ http://formats.kaitai.io/ that you can use with Hiew with Kiewtai https://github.com/taviso/kiewtai https://github.com/taviso/kiewtai If the question is slightly different, i.e. which bytes are used to identify a given file format, there is Trid: https://mark0.net/soft-trid-e.html https://mark0.net/soft-trid-e.html Which has also a database of known headers/patterns.