10 KB OBJ sample file
An OBJ file of exactly 10,240 bytes. It is a valid Wavefront OBJ 3D model file, generated for this site and checked with an independent parser.
Download
sample-obj-10kb.obj
10 KB10,240 bytes
Download 10 KB OBJDirect download. No sign-up and no waiting.
- Type
- model/obj
- SHA-256
f367ef4d74c95caf68f69ebdf63e5c2a74d02ecb849d9253d88b4942bc2ed4fe- Direct URL
https://sampletestfiles.com/downloads/obj/sample-obj-10kb.obj
What is in this file
A height-field mesh with 231 vertices and 400 triangular faces, written as "v" and "f" statements with no materials. Comment lines at the end bring the file to the exact size.
| Vertices | 231 |
|---|---|
| Faces | 400 triangles |
| Objects | 1 (terrain) |
| Normals and UVs | None |
| Encoding | UTF-8 (ASCII characters only) |
How the file begins
The opening lines of sample-obj-10kb.obj, exactly as they appear in the file.
# SampleTestFiles sample OBJ file (10 KB)
# A triangulated height-field surface, 11 vertices wide.
o terrain
v 0.000 0.0000 0.000
v 0.500 0.1197 0.000
v 1.000 0.2377 0.000
v 1.500 0.3523 0.000
v 2.000 0.4618 0.000
v 2.500 0.5646 0.000
v 3.000 0.6594 0.000
v 3.500 0.7446 0.000
v 4.000 0.8192 0.000
v 4.500 0.8820 0.000
v 5.000 0.9320 0.000Preview
Shows the file contents.
Where 10 KB matters
A 10,240-byte file that still arrives in the first round trip of a new connection. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| TCP initial congestion window | About 14.6 KB (10 segments) | A 10 KB response fits in the first flight of packets; the 25 KB sample does not. |
| nginx and Apache request headers | 8 KB per header line by default | Data this large must go in the request body. |
| webpack asset modules | 8 KB by default | Assets over the threshold are emitted as files instead of data URIs. |
Use this file for
- Checking thumbnail and icon handling
- Load-testing viewers with large meshes
- Testing 3D model upload and preview
Testing notes for OBJ
- Face indices are one-based and can be negative, meaning relative to the end of the vertex list; importers written for zero-based arrays are off by one.
- OBJ has no unit of measurement, so the same file can appear at wildly different scales in different tools.
Technical details
| File name | sample-obj-10kb.obj |
|---|---|
| Format | OBJ (Wavefront OBJ 3D model) |
| Extension | .obj |
| MIME type | model/obj |
| Size | 10,240 bytes (10 KB) |
| Kind | Text |
| SHA-256 | f367ef4d74c95caf68f69ebdf63e5c2a74d02ecb849d9253d88b4942bc2ed4fe |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Available on this page |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | 3D Models |
Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Download from the command line and verify
Fetch the file with curl, then compare its checksum with the SHA-256 value above.
curl -o sample-obj-10kb.obj 'https://sampletestfiles.com/downloads/obj/sample-obj-10kb.obj'
sha256sum sample-obj-10kb.obj # Linux
shasum -a 256 sample-obj-10kb.obj # macOSOn Windows, run Get-FileHash sample-obj-10kb.obj -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.
Related files
Questions about this file
- Is this file exactly 10 KB?
- Yes. It is 10,240 bytes, which is 10 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 10 KB OBJ file?
- A height-field mesh with 231 vertices and 400 triangular faces, written as "v" and "f" statements with no materials. Comment lines at the end bring the file to the exact size.
- What does the sample model look like?
- A gently rolling surface, like a patch of terrain, built from triangles. It has no materials or textures.