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View a FAN file online, free

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

Drop your .FAN file here

Opens your .FAN file right here.

Choose file
Up to 50 MB · 160+ text and code extensions
Instant. Opens in seconds
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100% free. No limits on use

What you get for a .FAN file

We don't have a dedicated viewer for this format, so we identify and inspect it instead — honestly, only what can be read from the file.

01

Drop your .FAN file

Choose it or drag it in. It's read right here in your browser.

02

We identify it

We read the magic bytes to tell what the file really is, its MIME type, and whether the name matches the contents.

03

See the details

Any metadata we can extract (dimensions, EXIF/GPS, document author and dates), a hex view, plus readable text and strings found inside.

What is a .FAN file?

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

A .FAN file is a Form•Z Animation File categorized as a CAD file and developed by AutoDesSys. It is a font type that contains animation data and is typically opened using AutoDesSys software or the Finale NotePad notation program.

Programs that open .FAN files

Windows
AutoDesSys, Finale NotePad notation software
macOS
AutoDesSys
.FAN format details
DeveloperAutoDesSys

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Frequently asked questions

Is my .FAN 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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