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Text editor with support for large files

PSPad is not able to open large files (>100MB). PSPad loads whole file in memory and PSPad is 32-bit application. There seems to be no plan to change that.

Notepad++ is not able to open large files (>100MB). Notepad is based on Scintilla text editing component and it will not support large files.

The wiki Comparison of text editors lists some other editors that suport large files, but I will deal with with EditPad Pro and UltraEdit.

EditPad Pro

EditPad Pro, $40, written in Delphi XE (?). EditPad Lite doesn't support large files.

The installer includes 64-bit version and 32-bit version and selects appropriate version during installation. You can pass /32 to the installer to force 32-bit installation

Built-in forum (login includes license information), forum is available only after purchase.

Explorer context menu for all files: HKCU\Software\Classes\* (it will be automagically merged for current user to HKCR\Classes), save this into *.reg file.

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Classes\*\shell\EditPad_pro]
@="Open in EditPad Pro"
"Icon"="\\\\pc10010\\G\\Portable\\EditPad Pro 7\\EditPadPro7.exe,0"

[HKEY_CURRENT_USER\Software\Classes\*\shell\EditPad_pro\command]
@="\\\\pc10010\\G\\Portable\\EditPad Pro 7\\EditPadPro7.exe \"%1\""

Portable version does seem to store configuration local to the computer where it runs, in \Users\<user>\AppData\Roaming\JGsoft\EditPad Pro 7. I did not found any documentation. Maybe this is caused by sharing the USB as read/only.

Minuses:

  • Cannot run portable version from hard disc, it seems to check if the drive is removable
  • UI is not easy to understand

UltraEdit

UltraEdit, $80 (Windows, Linux and Mac), $60 (UltraEdit Mobile), $90 (Desktop + Mobile bundle)

There could be some limitations of Undo, check.

Minuses:

  • Very slow start (compared to EditPad Pro)
  • Very slow when opening large files (EditPad open large files instantly)
  • Only 32-bit version?

 

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