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Mechanical
Kerf vs Onshape
Browser-native real-time-collab CAD — closest peer in cloud shape.
57/57in Kerf today
10/57in Onshape (included)
5behind a paid tier
2026-05-19last reviewed
| Capability | Kerf | Onshape |
|---|---|---|
| Constraint sketcher (geo + dim)D1 |
yes
packages/kerf-cad-core/src/kerf_cad_core/surfacing.py
|
yes source ↗ |
| Parametric B-rep modellerD1 |
yes
packages/kerf-cad-core/src/kerf_cad_core/surfacing.py
|
yes source ↗ |
| Sheet metalD1 |
yes
packages/kerf-cad-core/src/kerf_cad_core/construction_verbs_tools.py
|
yes source ↗ |
| Assemblies — matesD1 |
yes
packages/kerf-cad-core/src/kerf_cad_core/surfacing.py
|
yes source ↗ |
| 2D drawings (views/dims/sections)D1 |
yes
src/components/DrawingView.jsx
|
yes source ↗ |
| Configurations / family variantsD1 |
yes
src/components/ConfigurationsPanel.jsx
|
yes source ↗ |
| NURBS surfacing (blend/network/patch)D1 |
yes
packages/kerf-cad-core/src/kerf_cad_core/geom/network_srf.py
|
yes source ↗ |
| GD&T on drawings / MBD / PMID1 |
yes
packages/kerf-gdnt/src/kerf_gdnt/feature_control_frame.py
|
yes source ↗ |
| Standard parts library (ISO/DIN fasteners, bearings, profiles)D1 |
yes
packages/kerf-parts/src/kerf_parts/tools.py
|
partial source ↗ |
| FEM linear static + modal (built-in)D2 |
yes
packages/kerf-structural/src/kerf_structural/aisc_member.py
|
paid tier source ↗ |
| AISC 360-22 steel (members)D2 |
yes
packages/kerf-structural/src/kerf_structural/aisc_member.py
|
no source ↗ |
| Fatigue (S-N, ε-N, rainflow)D2 |
yes
packages/kerf-cad-core/src/kerf_cad_core/fatigue/life.py
|
no source ↗ |
| ASCE 7-22 seismic / windD2 |
yes
packages/kerf-cad-core/src/kerf_cad_core/seismic/rsa.py
|
no source ↗ |
| Spur/helical gear rating (AGMA/ISO 6336)D3 |
yes
packages/kerf-cad-core/src/kerf_cad_core/gearstrength/iso6336.py
|
no source ↗ |
| Bearings — ISO 281 / ISO/TS 16281D3 |
yes
packages/kerf-cad-core/src/kerf_cad_core/bearings/select.py
|
no source ↗ |
| Planetary / epicyclic gearboxD3 |
yes
packages/kerf-cad-core/src/kerf_cad_core/gearbox/planetary.py
|
no source ↗ |
| Springs (compr/ext/torsion/Belleville)D3 |
yes
packages/kerf-cad-core/src/kerf_cad_core/springs/design.py
|
no source ↗ |
| Heat exchangers (LMTD + ε-NTU + Bell-Delaware)D4 |
yes
packages/kerf-cad-core/src/kerf_cad_core/heatxfer/shell_tube_bell.py
|
no source ↗ |
| Steam/water properties (IAPWS-IF97)D4 |
yes
packages/kerf-cad-core/src/kerf_cad_core/fluids/iapws_if97.py
|
no source ↗ |
| CFDD4 |
yes
packages/kerf-cad-core/src/kerf_cad_core/heatxfer/transfer.py
|
paid tier source ↗ |
| 3D wing VLM (+ viscous + compressibility)D5 |
yes
packages/kerf-aero/src/kerf_aero/vlm_viscous.py
|
no source ↗ |
| Orbital mechanics (Kepler, J2/J3, Hohmann)D5 |
yes
packages/kerf-aero/src/kerf_aero/vlm.py
|
no source ↗ |
| Naval hydrostatics + GZ stability (IMO)D5 |
yes
packages/kerf-marine/src/kerf_marine/stability.py
|
no source ↗ |
| Schematic capture (KiCad round-trip, ERC)D6 |
yes
src/components/SchematicView.jsx
|
partial source ↗ |
| PCB layout (tscircuit, KiCad round-trip)D6 |
yes
src/components/PCBView.jsx
|
partial source ↗ |
| Signal integrity (Z0/crosstalk/eye/IBIS)D6 |
yes
packages/kerf-electronics/src/kerf_electronics/si/ibis_parser.py
|
no source ↗ |
| Silicon synth (Yosys) / STA / GDS / DRC / LVSD6 |
yes
packages/kerf-silicon/src/kerf_silicon/analog/pvt.py
|
no source ↗ |
| Analog PVT corner simulationD6 |
yes
packages/kerf-silicon/src/kerf_silicon/analog/pvt.py
|
no source ↗ |
| 3-axis CAM (profile/contour/pocket/face)D7 |
yes
src/components/CAMView.jsx
|
paid tier source ↗ |
| 5-axis CAM (kinematics + posts)D7 |
yes
packages/kerf-cam/src/kerf_cam/adaptive.py
|
paid tier source ↗ |
| Feeds & speeds + tool-lifeD7 |
yes
packages/kerf-cad-core/src/kerf_cad_core/cuttingtool/tool_life.py
|
partial source ↗ |
| Moldflow / fill simulationD7 |
yes
packages/kerf-manufacturing/src/kerf_manufacturing/moldflow/flow_front.py
|
no source ↗ |
| Nesting (skyline + true-shape NFP)D7 |
yes
packages/kerf-cad-core/src/kerf_cad_core/nesting/nfp.py
|
no source ↗ |
| FDM slicing (Cura)D7 |
yes
src/components/PrintSliceView.jsx
|
no source ↗ |
| Horizontal+vertical alignment (clothoid, SSD)D8 |
yes
packages/kerf-civil/src/kerf_civil/superelevation.py
|
no source ↗ |
| Geotech (bearing/settlement/slope/pile/liquefaction)D8 |
yes
packages/kerf-cad-core/src/kerf_cad_core/geotech/liquefaction.py
|
no source ↗ |
| Planar MBD (Lagrange/DAE, Baumgarte)D9 |
yes
packages/kerf-cad-core/src/kerf_cad_core/dynamics/rigidbody.py
|
no source ↗ |
| Vibration n-DOF modal / FRFD9 |
yes
packages/kerf-cad-core/src/kerf_cad_core/vibration/mdof.py
|
paid tier source ↗ |
| Controls — state-space / LQR / KalmanD9 |
yes
packages/kerf-cad-core/src/kerf_cad_core/controls/statespace.py
|
no source ↗ |
| Robotics 6-DOF spatial IKD9 |
yes
packages/kerf-cad-core/src/kerf_cad_core/robotics/arm.py
|
no source ↗ |
| AC load-flow (Ybus / Newton-Raphson)D10 |
yes
packages/kerf-cad-core/src/kerf_cad_core/elecpower/loadflow.py
|
no source ↗ |
| Solar PV (system + partial shading)D10 |
yes
packages/kerf-cad-core/src/kerf_cad_core/solarpv/shading.py
|
no source ↗ |
| Wiring/harness (WireViz + 3D router)D10 |
yes
src/components/WiringView.jsx
|
no source ↗ |
| PLC IEC 61131-3 (ST/Ladder/FB/motion)D10 |
yes
src/components/PLCView.jsx
|
no source ↗ |
| Firmware build/upload/monitor/debugD10 |
yes
src/components/FirmwareActions.jsx
|
no source ↗ |
| GD&T data model (ASME Y14.5)D11 |
yes
packages/kerf-gdnt/src/kerf_gdnt/feature_control_frame.py
|
yes source ↗ |
| Limits & fits (ISO 286)D11 |
yes
packages/kerf-gdnt/src/kerf_gdnt/inspection_report.py
|
yes source ↗ |
| Tolerance stackup — 1D (WC/RSS/MC)D11 |
yes
packages/kerf-cad-core/src/kerf_cad_core/tolstack/stack.py
|
no source ↗ |
| Tolerance stackup — 3D vector loopD11 |
yes
packages/kerf-cad-core/src/kerf_cad_core/tolstack/tol3d.py
|
no source ↗ |
| SPC control charts (Shewhart/CUSUM/EWMA)D11 |
yes
packages/kerf-cad-core/src/kerf_cad_core/spc/charts.py
|
no source ↗ |
| Paraxial ABCD ray transferD12 |
yes
packages/kerf-cad-core/src/kerf_cad_core/optics/lens.py
|
no source ↗ |
| Acoustics (ISO 9613, RT60, weighting, mass-law TL)D12 |
yes
packages/kerf-cad-core/src/kerf_cad_core/acoustics/wave.py
|
no source ↗ |
| Jewelry (41 modules)D13 |
yes
src/routes/JewelryShare.jsx
|
no source ↗ |
| BIM (walls/slabs/framing/stairs/IFC4)D13 |
yes
src/components/BIMView.jsx
|
no source ↗ |
| Should-cost (6 processes, Boothroyd-Dewhurst)D14 |
yes
packages/kerf-lca/src/kerf_lca/phases.py
|
no source ↗ |
| Material selection (Ashby)D14 |
yes
packages/kerf-cad-core/src/kerf_cad_core/matsel/multi_objective.py
|
partial source ↗ |
| LCA (full ISO 14040/44 4 phases)D14 |
yes
packages/kerf-lca/src/kerf_lca/phases.py
|
no source ↗ |
- yes shipped
- partial works with limits
- paid tier present, but behind an add-on or meter
- no not available
Corrections welcome. These rows are read off published documentation on the date shown and go stale as products ship. If a row is wrong, open an issue — the source file is public/compare/onshape.md and every claim in it carries a link.