HexEd.it is described as 'Free hex editor for all modern operating systems. It uses web technology to enable online hexediting, directly in the browser. Analyse binary dumps and files, read, manipulate, write, import and export any data in this webapp' and is a Hex Editor in the development category. There are more than 10 alternatives to HexEd.it, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux, Android and BSD apps. The best HexEd.it alternative is HxD, which is free. Other great sites and apps similar to HexEd.it are YuHex, 010 Editor, Hex Fiend and BinEd.
Tweak is a hex editor. It allows you to edit a file at very low level, letting you see the full and exact binary contents of the file. It can be useful for modifying binary files such as executables, editing disk or CD images, debugging programs that generate binary file formats...
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