1
Choose a file
Select a local file from the upload area. The page checks the file type and size before processing.
Free Texture Size Checker
Check texture size before 3D import: width, height, power-of-two fit, decoded RGBA8 memory, and the texture lane your model can afford.
Browser-only, private
Check texture size and memory locally before 3D import or generation.
Quick tips
- Check texture dimensions, power-of-two fit, and estimated GPU memory before 3D import.
- Check model files, texture dimensions, and real-world scale before 3D generation, import, or delivery.
About Free Texture Size Checker
Check texture size before 3D import: width, height, power-of-two fit, decoded RGBA8 memory, and the texture lane your model can afford.
Free Texture Size Checker is designed for quick browser-side preparation before upload, printing, modeling, compression, review, or handoff. Files are processed locally so you can keep lightweight jobs out of server queues.
How to use Free Texture Size Checker
2
Process locally
Run the tool in your current browser session without installing desktop software.
3
Download the result
Download the finished file and review it before printing, modeling, publishing, or handoff.
Why use this browser tool
Local-first processing
Free Texture Size Checker runs in the browser, which is useful for quick files you do not want to upload.
No installation
Open the page and work immediately across devices without setting up a desktop utility.
Free output
No account is required for these browser utilities, and exported files are not watermarked.
Workflow-ready
Use the result in slicers, 3D viewers, editors, web pages, review threads, or delivery folders.
What a 4096 x 4096 texture really costs
Texture cost is decided by two numbers: the pixel dimensions and the bytes per pixel. The checker reads the first and multiplies by four, because one decoded RGBA8 pixel is four bytes.
4096 x 4096 x 4 is 67,108,864 bytes — 64 MiB for a single texture, before mipmaps and before the driver pads the allocation. That figure, not the PNG file size, is what decides whether a texture budget survives a WebGL scene.
1Read the dimensions and the power-of-two verdict
WebGL 2 accepts non-power-of-two sizes, but power-of-two remains the safe lane for mipmapping, texture compression, and older engines: 512, 1024, 2048, 4096.
2Treat the reported memory as a floor
The number on the page is width x height x 4 bytes. A complete mip chain adds roughly a third on top, so a 4096 x 4096 texture that reports 64 MiB costs about 85 MiB once mipmapped.
3Check the limit of the device you are targeting
Open the console on the target device and run const gl = document.createElement("canvas").getContext("webgl2"); gl.getParameter(gl.MAX_TEXTURE_SIZE). That integer is the largest texture that GPU will upload.
4Check the source, ship the compressed form
Run the checker on the PNG or JPEG you author to catch oversized and non-power-of-two sources, then deliver KTX2 or Basis, which keep the GPU-side cost down instead of expanding to RGBA8.
| Texture | Pixels | Decoded RGBA8 | With a full mip chain |
|---|---|---|---|
| 512 x 512 | 262,144 | 1 MiB | about 1.33 MiB |
| 1024 x 1024 | 1,048,576 | 4 MiB | about 5.33 MiB |
| 2048 x 2048 | 4,194,304 | 16 MiB | about 21.33 MiB |
| 4096 x 4096 | 16,777,216 | 64 MiB | about 85.33 MiB |
| 8192 x 8192 | 67,108,864 | 256 MiB | about 341.33 MiB |
Frequently asked questions
What is Free Texture Size Checker?
Check texture size before 3D import: width, height, power-of-two fit, decoded RGBA8 memory, and the texture lane your model can afford.
Is Free Texture Size Checker free?
Yes. This browser tool is free to use and does not add watermarks to exported files.
Are my files uploaded?
No for these browser utilities. The supported processing path runs locally in your browser session.
What file size works best?
Smaller files finish faster. Very large images, videos, or 3D meshes may be limited by browser memory and device performance.
Will the output keep every detail?
Output quality depends on the source file, browser capability, and what the target workflow can represent.
Do I need to install software?
No. Use the page directly in a current browser, then download the processed result.
What does the reported memory number mean?
It is the decoded size of the image: width x height x 4 bytes for RGBA8. It is the cost of holding one uncompressed copy, not the file size of the PNG or JPEG you uploaded.
Does the number include mipmaps?
No. A complete mip chain adds about a third on top — a 4096 x 4096 texture reports 64 MiB decoded and costs roughly 85 MiB with mipmaps — so treat the figure on the page as a floor.
Do textures have to be power-of-two?
WebGL 2 accepts non-power-of-two dimensions, but 512, 1024, 2048, and 4096 remain the safe set for mipmapping, texture compression, and older engines. That is why the checker reports the fit separately from the memory figure.
Why does a texture fail on one phone and work on desktop?
MAX_TEXTURE_SIZE differs per GPU. This page validates the file; to confirm what a specific device will accept, read gl.getParameter(gl.MAX_TEXTURE_SIZE) from a WebGL 2 context on that device.
Related tools
Free GLB Inspector
Read the actual GLB JSON chunk locally and check structure, estimated geometry, materials, textures, skins, and extensions before handoff.
Free 3D Model Scale Calculator
Calculate an exact scale multiplier between separate source and target units before scene import or slicer handoff.
Free 3D Print-Readiness Checker
Upload an STL, 3MF, or OBJ file to diagnose printability issues locally before slicing.
Free 3D Model Viewer
View GLB, glTF, OBJ, STL, PLY, FBX, and 3MF model files locally in your browser before review, import, or delivery.
Free 3D Viewer & Editor
Import GLB, glTF, OBJ, STL, PLY, and FBX models, arrange sample objects, transform selected assets, and export clean handoff files locally in your browser.
Free GLB Viewer
Open GLB files locally with orbit controls before 3D review, import, or conversion.