3D Model Decal Tool

Like sticking a real label: add logos, images, or text to any 3D model. Auto-wraps curves, trims sharp corners, punches holes at openings, and exports as independent GLB layers. Fully browser-local, no upload.

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About This Tool

Upload a model, click the surface to place an image or text decal, then drag along the surface to move, scale, and rotate it. Unlike full-model AI retexturing or a flat paste, decals naturally hug curved surfaces and auto-trim at sharp edges and corners instead of stretching through to the back. When a decal crosses mesh holes, openings, or unreachable back sides, those regions are punched out automatically, leaving no floating or penetrating triangles. On export, each decal is saved as a separate mesh layer in the GLB without touching your original textures, so you can still select, move, or delete it individually in Blender or other apps.

Tips

  • 1Click to place; drag along the surface to move, including across to the other side
  • 2Curved and spherical surfaces wrap naturally, not flattened like a planar texture
  • 3Sharp edges and corners are trimmed automatically: decals don't penetrate to the back side
  • 4Holes, gaps, or unreachable back regions are punched automatically: no floating geometry
  • 5Upload images (transparent PNG recommended) or use text with adjustable size and color
  • 6Decals export as independent mesh layers, leaving original materials untouched
  • 7Supports 20+ input formats; this entry outputs GLB. Use GLB/3MF pages for same-format workflows. Fully browser-local.

About Configuration Options

Decal source

Type

DefaultImage

Choose an image decal or a text decal. Images work well for logos; text suits labels and signatures.

ImageRecommended

Upload PNG, JPG, or WebP (transparent PNG recommended).

Text

Enter text, then adjust size and color before placing.

Image file

In image mode, upload the sticker artwork. Transparent PNG looks best on curves and sharp edges.

Text content

In text mode, type the words you want to place on the model surface.

Text style

Font size

Default64px

Range24px – 160px

Font size in the text texture canvas (pixels). Larger sizes look sharper but use more texture space.

Color

Default#ffffff

Fill color of the text decal. Works well with a transparent background.

Snap & Align

Enable Snap

DefaultOn

Snap decals to model keypoints within the tolerance radius.

Alignment Guides

DefaultOn

While dragging, align to the model bounds, center planes and other decal centers, showing guide lines.

Vertex

DefaultOn

Snap to the nearest vertex.

Edge Midpoint

DefaultOn

Snap to the nearest edge midpoint.

Face Center

DefaultOn

Snap to the center of triangle faces.

Tolerance

Default1

Range0.001 – 1000 · step 0.01

Snap search radius, relative to the model size. Larger values make it easier to hit keypoints.

Place & edit

Place

After preparing a decal, click the model surface to place it. Drag empty space to orbit the view.

Move

Select a decal and drag the center handle. It slides along the surface and can wrap to the other side.

Scale

Default0.18

Range0.05 – 0.6 · step 0.01

Drag the scale handles after selecting a decal. Size is relative to the model bounding-sphere radius, with a default initial value and editable range.

Rotate

Drag the ring handle to spin around the surface normal. Snaps to 90° by default; hold Shift for free rotation.

Export

Independent layers

Each decal exports as a separate mesh layer without modifying original textures. Select, hide, or delete them individually in Blender and similar apps.

Format Information

Input format

Extension:
Model
Full Name:
3D Model
Type:
3D Model
Format:
Various 3D Formats
Open With:
Windows 3D ViewerBlender
Description:
Supports many 3D formats (GLB, GLTF, OBJ, FBX, STL, etc.). Drag and drop to view.

Notes:

  • Supports 20+ 3D model formats
  • Associate texture files (MTL, images) can be uploaded alongside the main model
  • All processing is local, so files never leave your browser

Supported Features:

  • Real-time GPU-accelerated rendering via WebGL
  • Orbit controls: rotate, pan, zoom
  • Wireframe and shaded display modes
  • Model info panel with vertex/face counts
  • Animation playback for animated formats

Output format

Extension:
glb
Full Name:
GL Transmission Format Binary (Compressed)
Type:
3D Model
Format:
Binary (glTF 2.0) with Draco/Texture Compression
Description:
The compressed GLB output uses Draco geometry compression and/or texture optimization to significantly reduce file size while maintaining visual quality.

Notes:

  • Draco-encoded models require a Draco decoder to render
  • File size can be reduced by 50-90% depending on settings

Supported Features:

  • Draco geometry compression (up to 90% reduction)
  • WebP/JPEG texture format conversion
  • Mesh simplification with configurable strength
  • Original PBR materials and scene hierarchy preserved

How to Use

1

Upload Model

Drag and drop a 3D model file, or click to browse and select one

2

Prepare a Decal

In the sidebar, pick Image (upload) or Text (type + size + color)

3

Place & Edit

Click the model surface to place; select a decal to drag, scale, rotate, or delete

4

Export GLB

Click export to download a GLB file with all decals as independent layers

Frequently Asked Questions

View all FAQs

About this tool

Q

Is this the same as model "reskin / AI texturing"?

A

No. This tool places logos, images, or text on a local area of the model. It does not replace or repaint the whole material, which makes it a good fit for branding, signing, and product mockups.

Q

Is this a decal sticker or an engrave/emboss effect?

A

The interaction works like a sticker: it wraps curved surfaces. This entry and the GLB/3MF pages export decals as independent textured mesh layers, so they are closest to sticker-style branding. The STL page bakes the pattern into a printable geometry layer, which is closer to an engraved marking effect.

Q

How is this different from Text to STL?

A

Text to STL creates new 3D text geometry from scratch, which suits standalone printed lettering. This tool adds logos, images, or text to an existing model's surface and exports GLB, which suits labeling, signing, and brand display.

Q

Can I add a logo to an STL file?

A

Yes. STL is accepted as input along with 20+ other formats. This page exports GLB after placement, with decals saved as textured sticker layers. For a printable STL mesh, export GLB and convert it with GLB to STL. True embossed STL branding will be a separate tool.

Q

Can decals wrap curved surfaces?

A

Yes. Decals use Shrinkwrap surface snapping, so they follow curved and spherical surfaces like a real sticker. They don't stretch or distort as a planar texture would, and the wrapping is smoother on more continuous surfaces.

Q

What happens at sharp corners or edges?

A

Decals auto-trim and break at the corner instead of being pulled across it, just like a real sticker that can't reach the inside of a 90° edge.

Q

Do decals auto-punch holes?

A

Yes. When a decal crosses a mesh hole, opening, or unreachable back side, that region is punched and trimmed automatically. The result is clean, natural edges with no floating or penetrating triangles.

Q

Will the pattern spin wildly when dragged to the other side?

A

No. Direction stays continuous when you move across faces, so the logo doesn't suddenly flip upside down. Even when you drag a decal to the other side, the orientation transitions smoothly with no manual re-rotation.

Q

Are decals painted into the model's original texture?

A

No. Each decal is a separate textured mesh independent from the original material. The original texture stays fully intact, and you can hide or delete each decal individually in Blender or other apps.

Q

Can I add text?

A

Yes. Switch to the Text tab, type your content, adjust size and color, then click the model surface to place it. You can still drag the placement afterward, and you can return to the Text tab anytime to edit the content.

Q

Does rotation snap to angles?

A

Yes. Dragging the rotation ring snaps to 90° increments by default. Hold Shift while dragging to disable snapping and rotate to any angle.

Q

What input and output formats are supported?

A

Input supports GLB, GLTF, FBX, OBJ, USDZ, STL, PLY, and 20+ more formats. This entry always outputs GLB. For same-format workflows, use 3MF decal or GLB decal. Need a printable mesh? Export GLB, then convert with GLB to STL.

General questions

Q

Is Any3D completely free?

A

Yes, Any3D's core features are free to use forever. We provide format conversion, model optimization, and online preview at no cost, with no registration required.

Q

Are my files uploaded to your servers?

A

No. Files you select are processed only in your browser on this device, so they never leave your device and are never sent to our servers. We don't store any user files; after processing, related data in browser memory is released.

Q

Do I need to install software?

A

No installation required. Any3D is entirely browser-based; just open the webpage to use all features. It works on Windows, Mac, Linux, and other major operating systems.

Q

Is there a file size limit?

A

The processing capacity depends on your device performance and the model's vertex count and texture complexity, rather than file size alone. We impose no file size limit, but when a model exceeds what your device can handle, the page may lag or even crash.

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