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View a JKM file online, free

Open and read .JKM files online. View source, logs and text with syntax highlighting, search and line numbers, free.

Drop your .JKM file here

Opens your .JKM file right here.

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Up to 50 MB · 160+ text and code extensions
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100% free. No limits on use

How to open a code or text file online

Three steps, a few seconds, no software.

01

Open your .JKM file

Drop it on the box, choose it from your device, or paste the text straight in.

02

View it instantly

Your .JKM file opens neatly formatted with line numbers.

03

Search, copy or download

Search the text, jump to any line, then copy what you need or download a clean copy.

What is a .JKM file?

Plain text that programs, servers and people write every day.

A .JKM file is a JAWS Key Map File developed by Freedom Scientific. It is a data file categorized as a settings file that contains specific keyboard mapping configurations. These files are used and opened by the JAWS screen reader software.

Programs that open .JKM files

Windows
JAWS
.JKM format details
DeveloperFreedom Scientific

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Frequently asked questions

Is my .JKM 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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