"Hachoir" is also very good, It allows you to "browse" and edit any binary stream just like you browse directories and files. A file is split in a tree of field

"Hachoir" is also very good, It allows you to "browse" and edit any binary stream just like you browse directories and files. A file is split in a tree of fields, where the smallest field is just one bit. Has parser for jpeg, png and many more. Written in python: https://bitbucket.org/haypo/hachoir/wiki/Home https://bitbucket.org/haypo/hachoir/wiki/Home