How to open a code or text file online
Three steps, a few seconds, no software.
Open your .FRX file
Drop it on the box, choose it from your device, or paste the text straight in.
View it instantly
Your .FRX 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 .FRX file?
Plain text that programs, servers and people write every day.
An FRX file is a binary resource file auto-generated by the Visual Basic 4/5/6 IDE, always paired with a same-named .frm form file. You cannot open it on its own. Open the whole VB project (.vbp) in Visual Basic 6.0 or import it into Visual Studio with a VB6 migration tool. Note that Visual FoxPro also uses .frx for a different format (a report layout), so check what software created your file.
Programs that open .FRX files
| Full name | Visual Basic Form Binary File |
|---|---|
| Developer | Microsoft |
| First released | Visual Basic 4.0 era (1995); standard in Visual Basic 5.0/6.0 (1997-1998) |
| Category | Text & Code |
| MIME type | application/octet-stream |
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Frequently asked questions
Is my .FRX 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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