Text3D.ai
Get Started
3D Converter

Free 3D Converter Online

Convert GLB, glTF, OBJ, FBX, STL, PLY, USDZ, and 3MF files in your browser. Upload a 3D model, inspect it in the same interactive viewer used across Text3D.ai, then download it in the format your workflow needs.

100% free conversion Files convert in your browser Interactive 3D preview Works on desktop & mobile

model.glb

Uploaded to the Text3D.ai free converter — previewed and converted in your browser

GLB
Loading
Lighting
Material
Copied
Free browser-based conversion

One 3D converter for web, games, AR, and 3D printing

The Text3D.ai Free 3D Converter moves models between the formats real pipelines use — web 3D viewers, game engines, ecommerce AR, DCC tools, and slicers — with a true 3D preview before every download.

GLB glTF

GLB & glTF for web 3D

Convert assets into web-ready formats for interactive viewers, product configurators, portfolio embeds, and lightweight real-time 3D experiences.

OBJ FBX

OBJ, FBX & PLY for 3D software

Prepare models for Blender, Maya, 3ds Max, Cinema 4D, Unity, and Unreal Engine — clean exchange formats for editing pipelines and asset handoff.

STL & 3MF for 3D printing

Move between geometry-focused print formats for slicers, prototype checks, maker projects, and manufacturing preparation — in either direction.

USDZ for AR & ecommerce

Convert supported models to USDZ for Apple AR Quick Look, mobile product previews, and AR-ready ecommerce experiences in the US market.

Supported 3D formats

Convert 8 common 3D model formats in one place

The converter detects your uploaded source format and updates the download menu automatically, so every export option you see is actually available for your file.

FormatBest forPopular conversions
GLB / glTFWeb 3D, interactive viewers, AI-generated assets, ecommerce, real-time previews.GLB to OBJ · GLB to STL · GLB to FBX · GLB to USDZ · glTF to GLB
OBJUniversal 3D exchange for Blender, Maya, 3ds Max, and modeling workflows.OBJ to GLB · OBJ to STL · OBJ to PLY · OBJ to FBX
FBXGame engines, animation pipelines, DCC tools, Unity and Unreal workflows.FBX to GLB · FBX to OBJ · FBX to STL
STL3D printing, slicers, geometry checks, prototypes, simple mesh exchange.STL to GLB · STL to OBJ · STL to 3MF · STL to PLY
PLY3D scans, vertex-color assets, research data, and geometry exchange.PLY to OBJ · PLY to GLB · PLY to STL
USDZApple AR, iOS Quick Look, AR product previews, mobile visualization.USDZ to GLB · USDZ to OBJ · GLB to USDZ
3MF3D printing projects, multi-part print workflows, manufacturing prep.3MF to STL · 3MF to OBJ · 3MF to GLB
GLB to OBJ Converter OBJ to GLB Converter GLB to STL Converter STL to GLB Converter FBX to GLB Converter GLB to USDZ Converter USDZ to GLB Converter 3MF to STL Converter STL to 3MF Converter PLY to OBJ Converter
How it works

How to convert 3D files online — in three steps

No installs, no plugins, no account needed to convert. The whole flow runs on this page in under a minute.

Upload a 3D file

Drag and drop or pick a GLB, glTF, OBJ, FBX, STL, PLY, USDZ, or 3MF file. The converter detects the source format automatically.

Preview before converting

Rotate, zoom, switch lighting presets, and check clay or wireframe modes — the same viewer controls used on Text3D.ai asset pages.

Download OBJ FREE

Choose a format & download

Pick an available target format in the Pro Export panel and click Download. The converted model is prepared and saved automatically.

Private by design

Your 3D files stay on your device for free conversion

Free preview and conversion run directly in your browser using WebGL — your model is processed on your own device for these free features, and Text3D.ai keeps no history of files used with the free converter. Optional Pro workflows that need AI processing always ask you to sign in first.

In-browser conversion for all free downloads No upload history or stored conversion records No signup required to preview or convert Pro AI tools clearly ask before any processing
Use cases

Built for creators, developers, studios, and product teams

The free converter targets the real intent behind online 3D conversion: getting an asset into the exact format your next step needs — right now.

Game asset conversion Convert models for Unity, Unreal Engine, prototyping, marketplace review, and game-ready asset handoff. Convert game assets → Ecommerce 3D & AR Prepare product models for web viewers, mobile AR, store previews, interactive product pages, and campaigns. Convert product models → 3D printing files Move between STL, 3MF, OBJ, and GLB for slicers, prototype reviews, geometry checks, and manufacturing prep. Convert print files → AI-generated 3D assets Convert AI 3D outputs from Text3D.ai or other generators into the exact format you need for editing, sharing, or deployment. Convert AI 3D models →
Continue after conversion

From free 3D conversion to AI 3D production

After converting a model, keep going with Text3D.ai — generate new assets, rebuild from images, render, repair, remesh, segment, and texture your 3D files.

Text to 3D Generate downloadable 3D models from prompts with the Text3D.ai AI generator. Text to 3D → Image to 3D Turn product, object, or character images into editable, exportable 3D assets. Image to 3D →
Multiview to 3D Use front, side, and back reference views for a stronger 3D reconstruction.
Free 3D Viewer Open and inspect 3D files online before or after conversion — unlimited and free.
FAQ

Free 3D Converter — questions & answers

Everything about converting, previewing, and downloading 3D model formats online with Text3D.ai.

Is the Text3D.ai Free 3D Converter really free?

Yes. Uploading, previewing, choosing an export format, and downloading converted 3D files are free, with no set limit on the number of conversions and no signup required to convert. Optional Pro AI workflows on the right-side panel ask you to sign in before processing.

Which 3D formats can I convert?

You can upload GLB, glTF, OBJ, FBX, STL, PLY, USDZ, and 3MF files. The available download formats update automatically based on the uploaded source format, so every option in the export menu works for your file.

Can I convert GLB to OBJ or STL online?

Yes. Upload a GLB file, wait for the 3D preview to load, choose OBJ, STL, PLY, FBX, USDZ, or 3MF in the export menu, and click Download. The converted file downloads automatically when it is ready.

Can I convert OBJ, STL, PLY, FBX, USDZ, or 3MF to GLB?

Yes. For supported files, the converter loads the model into the browser preview and offers GLB plus the other available export formats based on the uploaded source format.

Is it safe to upload my 3D models?

Free preview and conversion run inside your browser, so your file is processed on your own device for these free features. Text3D.ai also keeps no history of files used with the free converter. Pro AI workflows that need server-side processing always ask for your consent and sign-in first.

Do I need Blender, Maya, or any desktop 3D software?

No. The free online 3D converter works in desktop, laptop, tablet, and mobile browsers without installing Blender, Maya, 3ds Max, or any other desktop 3D software.

Does the free converter have a conversion limit?

No. There is no set limit on the number of free 3D file conversions. You can convert supported 3D model formats whenever and as often as you need.

Where can I see the history of uploaded and downloaded files?

There is no conversion history. To protect user privacy, Text3D.ai does not keep a record of 3D files uploaded for format conversion or of converted files downloaded from this page.

Are materials and textures always preserved?

Format capabilities differ. GLB and glTF carry web-ready PBR materials and textures, OBJ may depend on companion MTL and texture files, and STL is geometry-only. The converter prepares the best available export for the selected format.

What is Text3D.ai?

Text3D.ai, also written as Text3D AI, is an AI 3D generation and 3D asset workflow platform for creating, previewing, converting, rendering, repairing, and exporting 3D models.

Convert your next 3D file — free

Start with the free online 3D converter, then continue with AI 3D render, preview video, model repair, remeshing, volume calculation, segmentation, texture baking, and brand-new AI-generated 3D assets.

Upload a 3D File Text to 3D Image to 3D