"Online 3D modeling" covers at least five different jobs, and the tool that's perfect for one is useless for another. This is a sorted list of what actually runs in a browser tab in 2026, with prices and limits checked against each vendor's own pages in August 2026. Disclosure up front: one of the tools below is ours, and it's marked.
Can you really do 3D modeling in a browser now?
Yes. As of August 2026 you can do parametric CAD (Onshape), block modeling for 3D printing (Tinkercad), organic product modeling (Womp), interactive web 3D (Spline, Vectary), and full brush-based sculpting (Re:Form) entirely in a browser tab, with no installer. What browsers still don't have is a single free tool that does all of it — that's still Blender's territory.
The thing that changed is WebGPU. Older web 3D ran on WebGL, which was built for drawing scenes rather than computing on them, and the ceiling showed up fast. WebGPU gives a page real access to the GPU's compute pipeline, which is why browser tools stopped being toys around 2024–2025. We wrote a longer explainer on what WebGPU means for 3D artists if you want the mechanism rather than the marketing.
The five jobs people mean by "3D modeling"
Before comparing tools, name the job. Almost every bad tool recommendation online comes from answering the wrong one of these:
- Mechanical parts — brackets, enclosures, replacement clips. Dimensions matter, curves are exact, you're printing or machining it.
- Beginner objects for 3D printing — a nameplate, a cookie cutter, a phone stand. Precision matters less than getting to a printable file.
- Organic and stylized shapes — a soft-body character, a product blob, an illustration in 3D. Shapes are felt, not dimensioned.
- Web and product visuals — a spinning hero object on a landing page, an interactive configurator, a Figma mockup with real 3D in it.
- Sculpting — characters, creatures, busts, miniatures. Millions of triangles, pushed around with brushes.
Those five want five different tools. Here's the browser option for each.
Which browser tool is best for mechanical parts and prints?
For precise mechanical parts, Onshape Free is the strongest browser CAD as of August 2026: full professional parametric modeling with version control, free for non-commercial work, with the hard catch that every document you create on the free plan is public. For simpler printable objects, Tinkercad is free from Autodesk, needs only an Autodesk account, and exports STL and OBJ.
Onshape Free is the surprising one, because it isn't a stripped demo — Autodesk's rivals ship cut-down free tiers, and Onshape ships the professional product with a visibility trade instead. Onshape's own free plan page describes it as full CAD and PDM aimed at makers, hobbyists, open-source projects, and people learning modern CAD, running on any device through the browser. The trade is total: your documents are publicly accessible, so it is the wrong choice for anything confidential or commercial.
Tinkercad is constructive solid geometry with a drag-and-drop face: you add and subtract primitives until the object exists. It has been Autodesk's on-ramp for a decade, it costs nothing, and it exports the formats a slicer wants. Its ceiling is exactly where you'd guess — it will not do swept surfaces, real fillets, or assemblies, and a design past a certain complexity becomes a pile of blocks nobody can edit. That's fine. Most first prints are a pile of blocks.
If you're not sure which file to export from either one, our format guide covers what OBJ, STL, GLB, and FBX each carry and which one your slicer or engine actually wants.
Womp: organic shapes without the CAD mindset
Womp is the browser tool for people who bounce off CAD. It works in soft, metaball-like volumes that merge into each other, which makes it fast for rounded characters, product concepts, and toy-like objects, and slow for anything that needs a specified dimension.
Per Womp's pricing page in August 2026, the Starter plan is free forever and includes the core shapes and tools, the standard material library, real-time collaboration, image and video export, and 3D model import and export in multiple formats — which is a genuinely generous free tier. Paid tiers exist mainly for AI generation limits, rendering, and teams: Pro is $9.99/month or $119.88/year, Team is $19.99/seat/month.
Womp is not a sculpting tool — you're combining and smoothing volumes, not driving brush strokes across a dense mesh — and it isn't a CAD tool. It occupies its own middle, and it's the best browser option in that middle right now.
Spline and Vectary: 3D for screens, not printers
These two get recommended constantly to people who wanted to model a figurine, which wastes everybody's time. Spline and Vectary are design tools whose output is a web page, a mockup, or a render — not a mesh you print.
Spline builds interactive 3D scenes that ship to a website: hover states, scroll-driven motion, embedded viewers. It runs in the browser. Its free tier, as of August 2026, includes limited personal files, unlimited file viewers, access to the Spline library, and web exports that carry a watermark; Hobby is $15/month billed monthly or $12/month billed yearly, Pro is $30/$25, Max is $70/$60.
Vectary aims at product visuals and design-team workflows, with a Figma plugin as a headline feature. Its free plan covers 5 projects with the Studio editor, import, and private sharing; Pro AI is $25/month billed monthly or $15/month billed yearly, with 25 projects and a monthly credit allowance for AI generation.
Both are good at their job. Neither is where you sculpt a face.
Can you sculpt in a browser?
Yes — browser sculpting is real in 2026, though the field is thin. SculptGL, the original WebGL sculptor, still loads and still works, but its repository was archived on January 17, 2026 and is now read-only. Re:Form (our tool, currently v0.7.1 Alpha) is the WebGPU-era option: every brush, sculpt layers, masking, symmetry, and remeshing in a desktop browser tab.
SculptGL deserves its place in this list because it proved the idea years before the hardware APIs were ready. Its author's own note is that he no longer maintains it and works on Nomad Sculpt instead, and GitHub now shows the project archived as of January 2026. It's still worth twenty minutes of anyone's time as a first taste of pushing digital clay, and we wrote up what SculptGL still does well and where it stops in more detail.
Re:Form is ours, so read this section with that in mind. It runs on WebGPU in desktop browsers — Chrome, Edge, Firefox, and Safari 26 — with nothing to install and no card. The free plan is the whole toolset rather than a demo: every brush, sculpt layers, masking, symmetry, one-click remeshing, and undo, up to roughly 12.5 million triangles, with OBJ import and export, local .clay saves, and browser autosave. It needs a free sign-in, it's licensed for personal non-commercial use, and there's no watermark. Pro is $9.99/month or $99/year and adds the full 50-million-triangle budget, STL/GLB/FBX in both directions, and a commercial license.
Two honest limits: Re:Form is desktop-only — no phones, no tablets — and it is alpha software, which means things change under you and you should keep saving. The engine is designed to stay smooth as the triangle count climbs because the mesh stays resident on the GPU, but "designed to" is the accurate phrasing, not a benchmark promise. If you want to see what people have made with it, the gallery is the honest sample.
The comparison, in one table
Prices and limits below are from each vendor's own pages, checked August 2026.
| Tool | Best job | Free tier | Paid from | Runs in browser |
|---|---|---|---|---|
| Onshape | Parametric CAD, real parts | Full CAD, non-commercial, all documents public | Paid tiers for private docs | Yes |
| Tinkercad | First 3D prints, teaching | Free, Autodesk account | — | Yes |
| Womp | Organic product and character blobs | Core tools, import/export, collaboration | $9.99/mo (Pro) | Yes |
| Spline | Interactive 3D for websites | Limited files, watermarked web export | $12/mo yearly (Hobby) | Yes |
| Vectary | Product visuals, Figma workflows | 5 projects | $15/mo yearly (Pro AI) | Yes |
| SculptGL | A first taste of sculpting | Entirely free, archived Jan 2026 | — | Yes |
| Re:Form (ours) | Brush sculpting, ~12.5M tris free | Full toolset, OBJ, no watermark | $9.99/mo (Pro) | Yes, desktop only |
| Blender | Everything, eventually | Free, all of it | — | No — desktop install |
What can't browser 3D tools do yet?
As of August 2026, no browser 3D tool offers a complete pipeline. Rigging, animation, physics simulation, node-based procedural modeling, UV unwrapping with real control, and offline rendering all still require a desktop install — overwhelmingly Blender, which is free and does every one of them well.
Being fair about that matters more than the sales pitch, so here is the rest of the gap.
The other gap is depth of the individual toolsets. ZBrush has accumulated two decades of specialist sculpting features, and nothing in a browser is close; our ZBrush comparison is explicit about which categories we lose. Browser tools also depend on your GPU and browser support in a way an installed app doesn't, and a WebGPU-capable machine is a real requirement rather than a footnote.
What browser tools do give you is a starting cost of zero and a setup time of about fifteen seconds. For a lot of people, that's the difference between learning 3D and intending to.
Do these work on a Chromebook, or offline?
Mostly yes on ChromeOS, mostly no offline. Tinkercad, Onshape, Womp, Spline, and Vectary are cloud tools that need a connection to load and save. Re:Form runs locally in the tab — sculpts stay on your machine and nothing is uploaded — but it still needs a WebGPU-capable desktop browser and GPU, which rules out weaker Chromebook hardware.
The privacy difference is worth naming because it cuts both ways. Cloud tools give you documents on any machine and collaboration; local-first tools give you files that never leave your disk. We cover what "runs locally" means for weak machines in 3D sculpting on a low-end PC, including how to test your own hardware before committing an evening to it.
Picking one in under a minute
- Printing a functional part → Onshape Free if it's public and non-commercial, Tinkercad if it's simple.
- Making a rounded, stylized object → Womp.
- Putting 3D on a website or in a Figma file → Spline or Vectary.
- Sculpting a character, creature, bust, or miniature → Re:Form (ours), and open it in a tab rather than reading more about it.
- Wanting one free tool that eventually does everything → Blender, and accept the download and the learning curve.
If sculpting is the job, the fastest honest test is thirty minutes with a sphere. Our first sculpt walkthrough covers navigation, blocking, and export; the plan details cover what free actually includes; and the FAQ covers the hardware questions.
FAQ
Is there a free online 3D modeling tool with no download?
Several, as of August 2026. Tinkercad is free from Autodesk for block modeling, Onshape Free is full parametric CAD for non-commercial public projects, Womp's Starter tier is free forever for organic modeling, and Re:Form's free plan (our tool) is the full sculpting toolset up to roughly 12.5 million triangles with OBJ export. All four run in a browser tab with nothing installed.
Can browser 3D modeling tools export files for 3D printing?
Yes. Tinkercad exports STL and OBJ, Onshape exports STL among other formats, Womp's free tier includes 3D model export in multiple formats, and Re:Form exports OBJ on every plan with STL added on Pro at $9.99/month. Every major slicer accepts OBJ or STL, so the export step is not the hard part — mesh quality and wall thickness are.
Is browser 3D modeling as good as Blender?
No, and it isn't trying to be the same thing. Blender is a complete free pipeline — modeling, sculpting, retopology, UVs, rigging, animation, simulation, and rendering — and nothing in a browser approaches that range in 2026. Browser tools win on setup cost and access: no install, no hardware provisioning, and a working file in seconds on a machine you don't control.