FBX Viewer

Open an FBX file and look at it from every side, right in your browser. The viewer reads binary and ASCII FBX 7.x, shows the model with its materials and embedded textures, and plays its animations: pick a clip, pause, change the speed or drag to any frame. Next to the 3D view it lists what is inside: the FBX version, the program that made it, the units and up axis, polygons, triangles, bones, skinned meshes, animation stacks with their length and every texture with where it is stored. The size is shown in millimetres and inches using the file’s own unit scale, so a model saved in centimetres is not shown ten times too big. Switch to wireframe, show a floor grid and bounding box, hide parts and save the view as a PNG. Nothing is uploaded.

100% private — everything runs in your browser. Everything runs in your browser; your FBX files and textures are never uploaded.

How to view an FBX file online

1. Drop an FBX on the box (with its texture files if they are separate), or click Try a sample.
2. Drag to orbit, scroll to zoom, or pick a view: corner, front, top and so on.
3. Pick an animation clip and press Play, or drag the slider to any frame.
4. Read the file details and the size, then click Save view as PNG.

What you can use it for

• Check an FBX from a 3D shop or a game asset pack before you import it
• See whether an export kept its textures, bones and animation clips
• Find the real size of a model and the units it was saved in
• Show a client a rigged character or prop and save a picture for a slide
• Check which texture files an FBX expects, by name
• Look at an FBX on a computer with no 3D program installed

Which FBX files open

FBX file	Here
Binary FBX 7.x (FileVersion 7000 and up; 7.5 and newer use 64-bit record offsets)	Opens: meshes, materials, embedded textures, bones, skins, animations
ASCII (text) FBX 7.x	Opens the same way
FBX 6.x and older (FileVersion below 7000), binary or ASCII	Refused with a clear message: re-export as FBX 7.4 or newer
Textures stored as separate files	Shown when you add the image files with the FBX (or open its folder); otherwise listed as missing and shown grey
TGA, PSD or DDS textures	Listed, but not drawn here: convert them to PNG or JPEG

FBX was developed by Kaydara and has been owned by Autodesk since 2006; it comes in a binary and a text (ASCII) form. This tool reads the file twice: its own reader lists what is inside (version, units, axes, textures, animation stacks), and the three.js FBX loader draws it.

What the viewer lists from an FBX

Panel	What it shows
File details	Binary or ASCII, FBX version, the program that made it, units and scale factor, up axis, meshes, polygons, triangles, vertices, bones, skinned meshes, animation stacks, embedded textures, size in mm
Animation	Every clip with its length; play, pause, 0.25× to 2× speed, scrub
Textures and images	Each texture by file name, the material that uses it, and whether it is embedded, added or missing, with its size
Files the model refers to	Texture paths written in the FBX that you have not added, by exact name
Parts	Show or hide each mesh
View	Wireframe, floor grid with its square size, bounding box, flat or smooth shading, turntable, PNG screenshot

What the sample FBX contains

Item	In the sample
Format	Binary FBX 7.4 (FileVersion 7400)
Units	centimetres (1 unit = 10 mm)
Polygons / triangles	10 quads / 20 triangles
Vertices	12
Bones / skin clusters	2 / 2
Animation	Bend (1 s)
Materials / textures	1 / 1 (embedded PNG, 209 bytes)
Size	40 × 10 × 10 mm (4 × 1 × 1 units of 1 cm)

Computed by the tool’s own FBX reader from the file behind Try a sample: a two-bone bar with a checker texture that bends 90 degrees in a one-second clip. We wrote the file with our own FBX writer.

FBX units: why a model can look 10 or 100 times too big

UnitScaleFactor in the file	Unit	1 unit =
0.1	millimetres	1 mm
1	centimetres	10 mm
2.54	inches	25.4 mm
30.48	feet	304.8 mm
100	metres	1000 mm

An FBX stores its unit as UnitScaleFactor, the number of centimetres in one unit, as the FBX SDK defines it. A file saved in millimetres carries 0.1, one in metres 100. The tool reads the factor and shows the true size in millimetres and inches; if a file has no factor it is read as centimetres and you are told so.

Next steps

Convert for 3D printing with GLB to STL or OBJ to STL, check a print file in the STL viewer, open CAD parts in the STEP viewer, make a flat technical drawing with Orthographic Drawing, or shrink a texture with the Image Compressor.

Sources

Sources: Autodesk FBX SDK reference: FbxSystemUnit (scale factor relative to centimetres); The National Archives (UK), PRONOM: FBX (Filmbox) Text, fmt/1010.

Frequently asked questions

Which FBX versions does it open?

Binary and ASCII FBX 7.0 and newer (FileVersion 7000 and up, including 7.4 and 7.5+ files). FBX 6.x and older files are refused with a message asking you to re-export them as FBX 7.4 or newer.

Does it show textures?

Yes. Textures embedded in the FBX are shown straight away. If the textures are separate image files, add them together with the FBX (select them all, or use Open a folder); the Textures list shows each texture as embedded, added or missing.

Does it play animations?

Yes. Every animation stack in the file becomes a clip you can pick, play, pause, speed up or slow down, and scrub. Skinned meshes follow their bones; the number of bones and skinned meshes is listed.

Why is my FBX model the wrong size?

FBX files store their unit as a scale factor in centimetres. The viewer reads it and shows the size in millimetres and inches. If the file does not state a unit it is read as centimetres; change Units in the file if the size still looks wrong.

Why is my model lying on its side?

Some programs save FBX files with Z as the up axis. The viewer turns Z-up files to stand upright and says so; use Up axis if a file still looks wrong.

Why does my FBX not open?

Files older than FBX 7.0 (FBX 6.x, FileVersion below 7000) are refused with a message, because the FBX loader used here reads 7.0 and newer only. Re-export or re-save the model as FBX 7.4 or newer, binary or ASCII. A file that is cut short or not really an FBX gets its own message.

Can I convert the FBX after viewing it?

This page views FBX files. To get an OBJ with its MTL materials and textures, use the FBX to OBJ converter; for 3D printing, convert the OBJ with OBJ to STL.

Can I save a picture of the model?

Yes. Turn the model to the view you want and click Save view as PNG. Choose Twice the view for a sharper image, or a transparent background for a cut-out.

Is it free?

Yes. There is no sign-up, no watermark, no daily limit and no size limit beyond what your device can hold.

Is my FBX uploaded?

No. The file and its textures are read by JavaScript in your browser and never leave your device. Only the 3D engine (three.js) is downloaded from a public CDN. Texture paths written inside the FBX are only matched to files you add; nothing is fetched from them.