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Expensico

Text File Viewer

Open TXT, LOG and other plain-text files with line numbers, search, word wrap and encoding detection. Large files stay fast and private.

Runs in your browser. Your files are processed on your device and are never uploaded.

How to use the Text File Viewer

  1. Open a text or log file.
  2. Scroll with line numbers, toggle wrapping, and filter to lines containing a word.
  3. Copy or download the content.

Built for big logs

Server logs and data dumps can be hundreds of megabytes. The viewer splits the file into lines and renders them in chunks, so you can open files that would freeze a normal text editor in the browser. The line filter works like grep — handy for finding errors in a log.

Encodings and line endings

Files are read as UTF-8 when possible; UTF-16 files with a byte-order mark are supported, and anything else falls back to Windows-1252 with a warning. The file details show whether it uses Windows (CRLF) or Unix (LF) line endings.

Frequently asked questions

Is my file uploaded?

No. It's read entirely on your device.