How to open a code or text file online
Three steps, a few seconds, no software.
Open your .RUN file
Drop it on the box, choose it from your device, or paste the text straight in.
View it instantly
Your .RUN file opens neatly formatted with line numbers.
Search, copy or download
Search the text, jump to any line, then copy what you need or download a clean copy.
What is a .RUN file?
Plain text that programs, servers and people write every day.
A .RUN file is a Linux Executable File used for running programs on Unix-like operating systems. It typically contains data and instructions required to install or launch a specific application. These files are opened and executed within Linux and Unix environments.
Programs that open .RUN files
| Full name | Linux Self-Extracting Installer Script |
|---|---|
| Developer | N/A (convention); Makeself by Stéphane Peter is the dominant generator |
| First released | Makeself first released ~1998; the .run convention popularized by NVIDIA/3rd-party Linux installers (2000s) |
| Category | Text & Code |
| MIME type | application/x-makeself |
| Signature | 23 21 2F 62 69 6E 2F 73 68 "#!/bin/sh" shebang on line 1 (a .run begins as a normal shell script) |
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Frequently asked questions
Is my .RUN file uploaded anywhere?
No. The file is read and highlighted for you.
Why do some characters look wrong (é, ł)?
That usually means the file was saved in one encoding and opened in another. We detect UTF-8, UTF-16 and the Windows-1250/1252 code pages automatically and show which one was used.
Can it handle huge log files?
Yes, up to 50 MB. Only the lines on screen are drawn, so scrolling stays smooth. Syntax colours are switched off for files over 1.5 MB to keep things fast.
How do the log level filters work?
We find levels like ERROR, WARN, INFO and DEBUG on each line. Lines without a level, such as stack traces, stay with the entry above them, so filtering to errors keeps the full trace.
Can I edit the file?
This is a viewer. To change code, download it or copy it into your editor. Converting encodings and line endings is planned.
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