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View a RFA file online, free

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

Drop your .RFA file here

Opens your .RFA file right here.

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Up to 50 MB · 160+ text and code extensions
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What you get for a .RFA 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 .RFA 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 .RFA file?

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

An RFA file is a Revit Family data file developed by Autodesk. It contains 3D models and data for specific architectural elements or components used within a larger project. These files are typically opened and edited using Autodesk software such as Revit Architecture and AutoCAD MEP.

Programs that open .RFA files

Windows
Autodesk Revit, Autodesk Viewer (web)
macOS
Autodesk Viewer (web)
Web
Autodesk Viewer
.RFA format details
Full nameRevit Family File
DeveloperAutodesk
First released2000 (Revit; Autodesk acquired Revit Technology Corp. in 2002)
CategoryText & Code
MIME typeapplication/octet-stream
SignatureD0 CF 11 E0 A1 B1 1A E1 OLE2 / Compound File Binary header (same container as .rvt)

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Every viewer is free to use.

Frequently asked questions

Is my .RFA 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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