Free online TXT to WRL converter

A program, simulator, 3D viewer, or older visualization device may require a VRML .wrl scene instead of a .txt file. The conversion is direct only when the TXT file already contains valid VRML source; ordinary prose or unstructured coordinates must first be turned into a 3D scene.

What the TXT format is

.txt is a plain-text container with no required structure, geometry model, metadata standard, or rendering instructions. Notepad, Windows Notepad, macOS TextEdit in plain-text mode, code editors, measurement software, GIS tools, and custom scripts commonly create it.

A TXT file may contain VRML source code, point coordinates, tabular measurements, exported CAD data, logs, or ordinary writing. The filename extension alone does not reveal which kind of content it contains, so open the file in a text editor before converting it.

What the WRL format is

.wrl usually contains an ASCII VRML (Virtual Reality Modeling Language) scene. VRML describes objects such as meshes, primitive shapes, materials, lights, cameras, viewpoints, transformations, animations, and sometimes external textures.

VRML is useful when a legacy CAD viewer, scientific visualization application, simulator, 3D browser, or embedded device specifically supports VRML. Its text-based structure makes small scenes easy to inspect and edit, but it is an older format with weaker support than modern formats such as glTF and X3D.

How to actually convert TXT to WRL

First check whether the TXT already contains VRML. Open it in a code editor and look for a first line such as #VRML V2.0 utf8, followed by nodes including Shape, Transform, Coordinate, or IndexedFaceSet.

1. If that VRML header and scene syntax are present, use File → Save As, name the file model.wrl, select UTF-8 encoding, and prevent the editor from adding a second extension such as .txt.
2. Open the resulting file in a VRML-capable viewer, such as view3dscene, to check that the scene loads and that the geometry is visible.
3. If the TXT contains only vertices and faces, convert those records into VRML nodes. A minimal mesh needs coordinates and face indices, for example:
   #VRML V2.0 utf8 Shape { geometry IndexedFaceSet { coord Coordinate { point [ 0 0 0, 1 0 0, 0 1 0 ] } coordIndex [ 0, 1, 2, -1 ] } }
4. Map the source columns to VRML coordinates in x y z order, convert the source face numbering to zero-based indices, and terminate each face with -1. Add Appearance, materials, textures, or normals if the source data contains them.

For repeated conversions, use a script to read the TXT columns and write the VRML template. A plain TXT file containing measurements or prose cannot be converted into meaningful 3D geometry without rules defining what each value represents.

You can also upload the file to the free converter on 101convert.com without installing software. This works only when the service recognizes the source structure; renaming arbitrary text as .wrl does not create a valid VRML scene.

Quality, compatibility, and limitations

Changing the extension preserves the text but does not transform coordinates, units, faces, colors, or textures. A valid VRML header with malformed node syntax will still fail in a viewer.

Check the source unit scale, axis orientation, face winding order, and index convention. VRML commonly uses meters and a Y-up coordinate system, while engineering and GIS exports may use millimeters, Z-up coordinates, or geographic coordinates. Relative texture URLs must remain valid after moving the .wrl file, and some viewers ignore unsupported shaders, animation nodes, or newer extensions.