When comparing UltraEdit vs Hex Fiend, the Slant community recommends Hex Fiend for most people. In the question“What are the best hex editors for Mac?” Hex Fiend is ranked 3rd while UltraEdit is ranked 6th. The most important reason people chose Hex Fiend is:
Hex Fiend does not keep your files in memory. You won’t dread launching or working with Hex Fiend even on low-RAM machines.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Handles large files (>1GB) extremely well
UltraEdit has small memory usage and allows for fast parsing/searching when handling large files.
Pro Works perfectly with remote files
Supports several protocols for accessing remote files and working on them with the same ease as local files. Files can be integrated in the projects as normal files.
Pro Probably the most versatile general editor in existence.
If you need a general editor, UltraEdit is the way to go. If you were writing C/C++ all day, then this would be your editor. If you need to slog through large files then this is your go to editor. If you need to go through XML files, then this is your editor. If you need to sort data, then this your my editor.
Pro Fast, stable, easy to use
It loads with a short delay, but once loaded it's snappy and rock-solid. Anyone accustomed to using Windows text editors will feel at home in its interface, and those that prefer alternate keybindings can easily change them.
Pro Search and replace capabilities
From Ultraedit to Perl to Unix regex engines, the search and replace can accomplish just about anything.
Pro Responsive company
Whether for feature requests, technical support or license questions, IDM is always quick to respond.
Pro Nice hex display & edit
There's a handful of other features like this that make UltraEdit indispensable.
Pro Extremely customizable GUI editor
UltraEdit offer the best of both worlds. it has a full on GUI along with all the shortcut commands you need. There's no need for the user to suffer 80 char limitations of a terminal editor.
Pro Highly flexible
UltraEdit allows you to handle groups of files as a project.
Pro Small memory footprint
Hex Fiend does not keep your files in memory. You won’t dread launching or working with Hex Fiend even on low-RAM machines.
Pro Works with huge files
Hex Fiend can handle as big a file as you’re able to create. It’s been tested on files as large as 118 GB.
Pro Binary compare / diff
Hex Fiend can show the differences between files, taking into account insertions or deletions.
Pro Fast & efficient saving
Hex Fiend knows not to waste time overwriting the parts of your files that haven’t changed, and never needs temporary disk space.
Pro Insert, delete, rearrange
Hex Fiend does not limit you to in-place changes like some hex editors.
Pro Fast
Open a huge file, scroll around, copy and paste, all instantly. Find what you’re looking for with fast searching.
Pro Free and open source
Hex Fiend is licensed under a permissive BSD-style license.
Pro Data Inspector
Interpret data as integer or floating point, signed or unsigned, big or little endian...
Pro Embeddable
It’s really easy to incorporate Hex Fiend’s hex or data views into your app. Its permissive BSD-style license won’t burden you.
Cons
Con Proprietary
It's not free and a license costs $79.99.
Con The themes introduced in version 20 regressed certain aspects of syntax coloring
The themes simplified the syntax highlighting which lost the capacity to have as many colors as one wanted to define. Now it is limited to around 20 different colors. In general it's not a problem but in certain cases it broke coloring.
For some reason, the classic theme is the only one that is totally pleasant for readability well with syntax highlighting.
Con Files can't be saved with a .dat extension
Trying to save files with .dat extension gives the following error:
You cannot save this document with extension “.dat” at the end of the name. The required extension is “.(null)”.