UltraEdit will allow you to write and edit for HEX, HTML, PHP and other programming language. There are many advanced features that include syntax highlighting/coloring for many languages, as well as code folding, brace matching, hex editing, style builder and column/block editing, text formatting, alignment, and centering are also featured. It supports files sizes 4GB and larger.
Full Specifications
What's new in version 26.20.0.1
Powerful command palette
Easy and quick access to all of UltraEdit's functionality and settings via Ctrl + Shift + P
Filter commands in search box at top
Pin favorite commands / settings to top of list
Access recently used commands in MRU list
Run macros, scripts, and user tools directly from command palette
JavaScript / CSS minifier and decompressor
JS/CSS drop down includes reformat, compress, and JavaScript Lint options
New "Formatting" group in Coding tab containing all code reformatting tools
Re-engineered code folding
Open – and fold – huge source files (up to 500 MB)
Faster parsing of huge files with foldable code
Much more accurate and better performing folding
Macro performance overhaul
In many cases, macros complete in 1/3rd of the time of previous versions – in some cases, even faster!
Improved macro performance and stability for huge files
Highlight all occurrences of string on double-click (no Shift required)
Configure under Advanced » Settings » Search » Advanced
Hints bar
See tips and hints contextualized to the work you're doing
Scroll through all hints
Hints are designed to be automatic and unobtrusive
New "Expand all" / "Collapse all" options in function list context menu
Status bar shows total number of lines in file
Modernized key mapping
Ability to re-map Ctrl + Tab and Ctrl + Shift + Tab (provides browser-like tab switching)
Replace in Files re-mapped to Ctrl + Shift + R
Quick record macro re-mapped to Ctrl + Shift + Q
ESC dismisses "Highlight all" highlighting
Various user interface, framework, and window improvements
General
ReleaseSeptember 4, 2019
Date AddedSeptember 4, 2019
Version26.20.0.1
Operating Systems
Operating SystemsWindows, Windows 7, Windows 8, Windows 10