Software for opening large files (.txt .log files)

Use the command less. less uses a more efficient way of reading a file into memory. There are 2 equivalent commands: more and most (that last one you need to ...

This cool tool is very simple, requires NO INSTALLATION and just works exactly as designed. Opened it up and then selected the log file I wanted ...

I am trying to open large files such as .log or .txt or even source files(range from 40 MB to 5 GB or even more) without loading everything into ram.

Free read-only viewers: Large Text File Viewer (Windows) – Fully customizable theming (colors, fonts, word wrap, tab size).

You can use the commandline utility more filename to open the file. In fact the utility more is also available on many linux distributions.

Notepad++ now has a plugin called BigFile that works great for this. Once installed go to Plugins->BigFiles->Open BigFile.

This PowerShell script splits a large log file into smaller chunk files based on the specified number of lines in each file.

LogViewPlus can open and analyze gigabytes of log file data in a few seconds. It's built for large data sets that would exceed the limits of most text editors.

For reading large files I suggest using the glogg. It can load files of several gigabytes fairly smoothly.

I have a crazy huge log file, which is formatted like a regular TXT. However, it's far far to large to open with both Notepad, Notepad++, or even Atom.