How to open a code or text file online
Three steps, a few seconds, no software.
Open your .JSX file
Drop it on the box, choose it from your device, or paste the text straight in.
View it instantly
Your .JSX 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 .JSX file?
Plain text that programs, servers and people write every day.
A .jsx file is most commonly an Adobe ExtendScript, a plain-text JavaScript automation script that runs inside After Effects, Photoshop, InDesign, or Illustrator. Open it from the app's File > Scripts menu, or edit it in any code editor. Web developers use the same extension for React component source (JavaScript XML), which is a different format, so check the context before acting on the file.
Programs that open .JSX files
| Full name | Adobe ExtendScript File |
|---|---|
| Developer | Adobe Systems Incorporated |
| First released | Early 2000s (Adobe Creative Suite scripting; ExtendScript based on ECMAScript 3) |
| Category | Text & Code |
| MIME type | application/javascript |
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Frequently asked questions
Is my .JSX 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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