Text editor to open big giant huge large text files

Question

I mean 100  MB big  such text files can push the envelope of editors   I need to look through a large XML file  but cannot if the editor is buggy   Any suggestions

User · Accepted Answer

Free read-only viewers   Large Text File Viewer  Windows      Fully customizable theming  colors  fonts  word wrap  tab size   Supports horizontal and vertical split view  Also support file following and regex search  Very fast  simple  and has small executable size  klogg  Windows  macOS  Linux      A maintained fork of glogg  its main feature is regular expression search  It can also watch files  allows the user to mark lines  and has serious optimizations built in  But from a UI standpoint  it s ugly and clunky  LogExpert  Windows       quot A GUI replacement for tail  quot  It s really a log file analyzer  not a large file viewer  and in one test it required 10 seconds and 700 MB of RAM to load a 250 MB file  But its killer features are the columnizer  parse logs that are in CSV  JSONL  etc  and display in a spreadsheet format  and the highlighter  show lines with certain words in certain colors   Also supports file following  tabs  multifiles  bookmarks  search  plugins  and external tools  Lister  Windows      Very small and minimalist  It s one executable  barely 500 KB  but it still supports searching  with regexes   printing  a hex editor mode  and settings  loxx  Windows      Supports file following  highlighting  line numbers  huge files  regex  multiple files and views  and much more  The free version can not  process regex  filter files  synchronize timestamps  and save changed files   Free editors   Your regular editor or IDE  Modern editors can handle surprisingly large files  In particular  Vim  Windows  macOS  Linux   Emacs  Windows  macOS  Linux   Notepad    Windows   Sublime Text  Windows  macOS  Linux   and VS Code  Windows  macOS  Linux  support large   4 GB  files  assuming you have the RAM  Large File Editor  Windows      Opens and edits TB  files  supports Unicode  uses little memory  has XML-specific features  and includes a binary mode  GigaEdit  Windows      Supports searching  character statistics  and font customization  But it s buggy     with large files  it only allows overwriting characters  not inserting them  it doesn t respect LF as a line terminator  only CRLF  and it s slow   Builtin programs  no installation required    less  macOS  Linux      The traditional Unix command-line pager tool  Lets you view text files of practically any size  Can be installed on Windows  too  Notepad  Windows      Decent with large files  especially with word wrap turned off  MORE  Windows      This refers to the Windows MORE  not the Unix more  A console program that allows you to view a file  one screen at a time   Web viewers   readfileonline com     Another HTML5 large file viewer  Supports search   Paid editors   010 Editor  Windows  macOS  Linux      Opens giant  as large as 50 GB  files  SlickEdit  Windows  macOS  Linux      Opens large files  UltraEdit  Windows  macOS  Linux      Opens files of more than 6 GB  but the configuration must be changed for this to be practical  Menu    Advanced    Configuration    File Handling    Temporary Files    Open file without temp file    EmEditor  Windows      Handles very large text files nicely  officially up to 248 GB  but as much as 900 GB according to one report   BssEditor  Windows      Handles large files and very long lines  Don   t require an installation  Free for non commercial use

User · Answer

Tips and tricks less Why are you using editors to just look at a  large  file  Under  nix or Cygwin  just use less   There is a famous saying      quot less is more  more or less quot      because  quot less quot  replaced the earlier Unix command  quot more quot   with the addition that you could scroll back up   Searching and navigating under less is very similar to Vim  but there is no swap file and little RAM used  There is a Win32 port of GNU less  See the  quot less quot  section of the answer above  Perl Perl is good for quick scripts  and its     range flip-flop  operator makes for a nice selection mechanism to limit the crud you have to wade through  For example    perl -n -e  print if   1000000    2000000   humongo txt   less  This will extract everything from line 1 million to line 2 million  and allow you to sift the output manually in less  Another example    perl -n -e  print if    regex one      regex two    humongo txt   less  This starts printing when the  quot regular expression one quot  finds something  and stops when the  quot regular expression two quot  find the end of an interesting block  It may find multiple blocks  Sift the output    logparser This is another useful tool you can use  To quote the Wikipedia article   logparser is a flexible command line utility that was initially written by Gabriele Giuseppini  a Microsoft employee  to automate tests for IIS logging  It was intended for use with the Windows operating system  and was included with the IIS 6 0 Resource Kit Tools  The default behavior of logparser works like a  quot data processing pipeline quot   by taking an SQL expression on the command line  and outputting the lines containing matches for the SQL expression  Microsoft describes Logparser as a powerful  versatile tool that provides universal query access to text-based data such as log files  XML files and CSV files  as well as key data sources on the Windows operating system such as the Event Log  the Registry  the file system  and Active Directory  The results of the input query can be custom-formatted in text based output  or they can be persisted to more specialty targets like SQL  SYSLOG  or a chart   Example usage  C   gt logparser exe -i textline -o tsv  quot select Index  Text from  c  path to file log  where line  gt  1000 and line  lt  2000 quot  C   gt logparser exe -i textline -o tsv  quot select Index  Text from  c  path to file log  where line like   pattern   quot   The relativity of sizes 100 MB isn t too big  3 GB is getting kind of big  I used to work at a print  amp  mail facility that created about 2  of U S  first class mail  One of the systems for which I was the tech lead accounted for about 15   of the pieces of mail  We had some big files to debug here and there  And more    Feel free to add more tools and information here  This answer is community wiki for a reason  We all need more advice on dealing with large amounts of data

[windows] Text editor to open big (giant, huge, large) text files

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