Ansys SpaceClaim Alternatives for Direct 3D Modeling

Ansys SpaceClaim, the direct modeler many engineers use to clean up CAD before meshing, is being phased out. A May 2025 CADFEM guide to the transition says SpaceClaim entered maintenance mode with 2023 R2 and will no longer be available for installation starting in 2027, with Discovery as its further development. The 2025 R1 Discovery advisories confirm SpaceClaim was removed from the unified installer and the standalone Discovery install, though it can still be installed separately, and that 2024 R2 was the last SpaceClaim built on the ACIS kernel.

The company changed too. Synopsys completed its acquisition of Ansys on July 17, 2025, and ansys.com now redirects to ansys.synopsys.com. If you run Ansys simulation, Discovery is the straight replacement. If you used SpaceClaim as a general direct modeler for reverse engineering, 3D printing or quick concept work, the other six picks cover that job at a range of prices.

Prices below are as of November 8, 2026. Our method is on How we review tools.

Quick comparison

Ansys Discovery

Discovery is the tool Ansys built to take over from SpaceClaim, and its direct modeling works on imperfect CAD the way SpaceClaim users expect. It adds a GPU live solver that shows multiphysics results while you edit, so geometry changes and early simulation happen in one window.

The licence names changed in 2025 R1: Discovery Modeling became Discovery Pro, Discovery Simulation became Discovery Enterprise, and a mid-tier Discovery Premium was added. CADFEM says Discovery's modeling also runs under Mechanical PrepPost, Mechanical Enterprise, CFD PrepPost and CFD Enterprise licences. The Discovery product page offers a 30-day trial and includes Discovery in the free Ansys Student bundle.

Best for: Ansys Mechanical and Fluent users who need defeaturing, fluid volumes and quick what-if simulation.

Pricing:

• Discovery Pro, Premium and Enterprise: contact sales
• 30-day free trial
• Ansys Student: free, includes Discovery

Watch out for:

• SpaceClaim scripts need work. The 2025 R1 advisories deprecated API version V22 for removal at 2025 R2, so custom add-ins must move to the current API.
• Price on request, and its strengths only pay off if you also run Ansys solvers.

Official site: Ansys Discovery.

Solid Edge

Siemens' synchronous technology is the nearest thing to SpaceClaim outside Ansys. You push and pull faces on a solid with no feature tree to rebuild, then switch to ordered, history-based features in the same model when you need design intent. The Solid Edge site now presents the product as Designcenter Solid Edge 2027 and offers a 30-day trial.

For personal projects, Solid Edge Community Edition is free professional CAD for makers and learners, and parts made in it can be 3D printed. It imports STEP, Parasolid and other neutral formats, which covers most files SpaceClaim users clean up.

Best for: Engineers who liked SpaceClaim's direct edits but want full parametric CAD and drawings around them.

Pricing:

• Community Edition: free, personal non-commercial use
• Commercial Designcenter Solid Edge plans: price on request through Siemens or resellers
• 30-day free trial

Watch out for:

• Community Edition files cannot be opened in commercial Solid Edge, and its 2D drawings are watermarked.
• It is a Windows desktop app, so Mac users need a VM or compatibility layer.

Official site: Solid Edge.

Shapr3D

Shapr3D is a direct modeler first. Sketch, pull a profile into a solid, then move and offset faces with a pencil, trackpad or mouse, much like SpaceClaim's Pull and Move tools but tuned for touch. It runs on iPad, Mac, Windows and Vision Pro, so a design started on a tablet opens on the desktop.

The Shapr3D pricing page lists a free Basic plan limited to 2 projects and basic-resolution STL and 3MF export. Pro costs $299 per editor seat billed annually, excluding VAT, and adds STEP, IGES and Parasolid XT export. Students and educators get it free.

Best for: Product designers and makers who want SpaceClaim-style direct edits on a tablet or Mac.

Pricing:

• Basic: free, 2 projects, basic-resolution STL and 3MF
• Pro: $299 per editor seat, billed annually, excl. VAT
• Free for students and educators

Watch out for:

• There are no simulation prep tools such as midsurfacing or fluid volume extraction, which is what many SpaceClaim seats were bought for.
• The free plan works as a trial: two projects and low-resolution export only.

Official site: Shapr3D.

Autodesk Fusion

Fusion records a timeline by default, but you can turn history off and model directly, pushing faces and editing imported STEP bodies without a feature tree. That mix suits SpaceClaim users who also need CAM toolpaths, sheet metal or simple FEA in the same app. Projects sync to Autodesk's cloud, so files follow you between machines.

On the Fusion pricing page the commercial plan is $57 a month billed annually, with a 30-day trial. Non-commercial users earning under $1,000 a year from their designs can use a free personal licence for a year at a time.

Best for: Small manufacturers that want direct edits, CAM and drawings in one subscription.

Pricing:

• Fusion: $57 a month, billed annually
• Personal use: free for 1 year, non-commercial, under $1,000 annual revenue
• 30-day free trial

Watch out for:

• The free personal tier limits CAM, 2D drawings and import and export file types.
• It is a subscription with cloud-stored projects, so lapsed payment ends editing.

Official site: Autodesk Fusion.

Onshape

Onshape runs in a browser, which matters if SpaceClaim's retirement leaves you without a Windows workstation licence. Several people can edit one Part Studio at once, every change is versioned, and direct-edit features such as Move face and Delete face work on imported geometry inside the history.

The Onshape pricing page lists Standard at $1,500 and Professional at $2,500 per user a year, billed annually, and a free plan for non-commercial work. Professionals can trial Professional for up to six months.

Best for: Distributed teams that want shared models and version control without installing anything.

Pricing:

• Free: non-commercial, all documents public
• Standard: $1,500 per user per year, billed annually
• Professional: $2,500 per user per year, billed annually
• Enterprise: contact sales

Watch out for:

• Everything on the free plan is public, and paid plans have no monthly option.
• It needs a steady internet connection; there is no offline mode.

Official site: Onshape.

SOLIDWORKS

SOLIDWORKS is the parametric CAD many SpaceClaim users received files from in the first place. Working natively removes the import-and-repair step, and tools such as Instant3D and Move Face give limited direct editing when you need it. Simulation add-ins cover basic stress and flow checks without leaving the model.

Commercial licences are sold through resellers with no list price. For learning at home, the SOLIDWORKS for Makers page lists $48 a year (list price) or $15 a month, excluding taxes, and lets you sell parts that earn under $2,000 a year.

Best for: Firms whose customers and suppliers already work in native SOLIDWORKS files.

Pricing:

• Commercial: price on request through resellers
• SOLIDWORKS for Makers: $48 a year (list price) or $15 a month, excl. taxes

Watch out for:

• Direct editing is an add-on to a feature tree, not the core workflow, so heavy face editing on dumb solids is slower than in SpaceClaim.
• The desktop app does not run natively on macOS; Mac users get the browser-based xDesign.

Official site: SOLIDWORKS.

FreeCAD

FreeCAD costs nothing for any use, commercial included, and the FreeCAD downloads page offers 1.1.4 for Windows 10 or later, macOS 12 or later and Linux. It reads and writes STEP and IGES, and its FEM workbench can mesh and solve with open source solvers, so a tight budget can cover CAD repair and basic analysis.

Version 1.1 arrived in March 2026 with transparent previews and drag handles for fillets and chamfers. Our FreeCAD alternatives page compares it with other free and low-cost CAD.

Best for: Individuals and small shops that need free CAD with STEP support and basic FEM.

Pricing:

• Free and open source, including commercial use

Watch out for:

• It is parametric, not direct. There is no Pull-style face editing on imported solids, so cleaning up a supplier's STEP file takes far more steps than in SpaceClaim.
• Workflows span separate workbenches, which slows people used to one toolbar.

Official site: FreeCAD. Our listing: FreeCAD.

How to choose

When to keep using SpaceClaim for now

Existing SpaceClaim installs keep working, and the separate installer is still offered through the Ansys Customer Portal, per the 2025 R2 installation guide. If your scripts and templates depend on it, keep it for current projects while you test them in Discovery. Plan to be off it before 2027, when installation is expected to end, and remember that releases after 2024 R2 use a different geometry kernel than ACIS.

Frequently asked questions