Large Text File Viewer v5.2u

billon on 12 Sep 2017
  • 690KB (uncompressed)
  • Released on 5 Jun 2009
  • Suggested by dasfx

Large Text File Viewer is designed for viewing large text files. It uses little memory and is able to open very large files (> 1GB) instantly. Background file indexing makes browsing even faster. It also allows the user to perform high-speed complex text search by means of plain text or regular expression.

Note: main site offline - linking to

Runs on:WinNT / Win2K / WinXP / Vista / Win7 / Win8 / Win10
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: Partial. The program supports UTF-16 Little-endian (UCS-2 LE) but not Unicode Big-endian and UTF-8.
License: Freeware
How to extract: Download the ZIP package and extract to a folder of your choice. Launch LTFViewr5u.exe.

Optionally, delete the included JPG files, which form a tiled window background.
What's new? Fixed:
  • The program hangs while reading files with large average line length.
  • Other bugs.

21 comments on Large Text File Viewer  The Portable Freeware Collection Latest Entries Feed

realsussyngl 2021-06-15 22:54

0/10 unable to open file with 1 billion characters


smaragdus 2016-11-03 22:44

It's a pity it doesn't support "Full Screen View".


shuunen 2015-02-10 13:18

worked great on a 10 millions lines file, 185 Mb :) instantly


webfork 2014-12-07 06:13

emka: updated, thanks


Emka 2014-12-06 17:11

links broken


abc 2011-08-11 17:24

Fast indeed, almost fits my needs except...

* Opening a non-ascii file such as an NOTEPAD.EXE - A bug resets the colors back to the default settings.
* Non-ascii characters are are displayed incorrectly
* Large files gives us a tiny ass and inaccurate scrollbar
* Very very slow scrolling for keyboard users [up/down], no home/end keys
* No hotkey configuration

Despite that it's WAAAAY better than trying to view large files with notepad/notepad++.


Impressed! 2011-03-30 06:57

Thank you! Thank you! Thank you!
Opened 800MB+ log files was never so quick and easy!


Comma Chameleon 2011-02-14 10:23

Very Good, fast and unique.
235MB file OK in 8 seconds. (XP Sp3)
That's 1.8 million lines with 20 CSV fields on each.
The brilliant way it shows the field name in CSV (Comma Separated Value) files
when you hover over the data is very indispensable for large file work.

freakazoid 2011-02-14 01:51

@Gihan - Try AkelPad

Gihan 2011-02-13 15:34

Cannot open 300kb file. Suck. Not responding

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