You open a 20 GB file in a normal editor, and it freezes. Or you change one byte in an EXE, save, and realize you can't get back to the original. Hex Editor Neo from HHD Software is built for exactly these situations: editing binary data of any size, with a full history of every change you make.
Quick facts
- Platforms: Windows XP through Windows 10, plus Windows Server 2003 to 2016
- License: Shareware with a 14-day trial
- Editions: Standard, Professional and Ultimate
- Interface languages: English, Spanish, German, French, Italian, Portuguese, Danish, Polish, Chinese (Simplified), Russian, Ukrainian, Indonesian
- Download size: about 15 MB
Key features
Open files of any size without waiting
The editor is tuned for speed and is meant for very large files. You can keep working in one document while it finishes a long operation on another.
Undo anything, and branch your history
Unlimited undo/redo comes with a visual operation history that branches. You can switch between revisions of a file in one click. You can also save the history, load it later, or share it with a colleague.
Make a patch in two clicks
Patch creation lets you turn your edits into a patch quickly. The vendor lists EXE, DLL, DAT, AVI, MP3 and JPG files as typical targets.
Read data as bytes, words, floats and more
Edit modes cover bytes, words, double words, quad words, floats and doubles. A data inspector, pattern coloring, bookmarks, a base converter and text encoding support help you interpret what you see.
Work on disks and process memory
Besides files, you can open physical and logical disks (volumes) and process memory. Find All, Replace All, multiple selection and advanced copy and export are included.
Who it's for
The vendor points to software developers, coders, beta-testers, university students and private users. Typical jobs are researching how an executable works, viewing DLL structure, writing microcode programs and patching binaries.
Pros and cons
- Pro: Handles huge files and keeps a branching history of your edits.
- Pro: Opens disks and process memory as well as files.
- Pro: Offered in 12 interface languages.
- Con: Windows only.
- Con: It's paid software with a 14-day trial, and the price depends on which of the three editions you need.
FAQs
Is there a free trial?
Yes. It is shareware with a 14-day trial.
Which Windows versions does it run on?
The vendor lists Windows XP, Vista, 7, 8, 8.1 and 10, and Windows Server 2003 through 2016.
Can I undo changes after saving?
Yes. You can save the history of your changes, load it later and keep editing.
Can it edit a disk or a running program's memory?
Yes. It can open physical and logical disks and process memory.
Are there different editions?
Yes: Standard, Professional and Ultimate. Pricing differs between non-commercial and commercial use.
System requirements
A Windows PC running one of the supported versions listed above. The download is about 15 MB.