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

Grouped by discipline (D1–D14), same as Kerf's own capability list. Click a section to expand it.

D1 Geometry & core CAD 8 of 9 matched

Capability	Kerf	Onshape
Constraint sketcher (geo + dim)	yes `packages/kerf-cad-core/src/kerf_cad_core/surfacing.py`	yes source ↗
Parametric B-rep modeller	yes `packages/kerf-cad-core/src/kerf_cad_core/surfacing.py`	yes source ↗
Sheet metal	yes `packages/kerf-cad-core/src/kerf_cad_core/construction_verbs_tools.py`	yes source ↗
Assemblies — mates	yes `packages/kerf-cad-core/src/kerf_cad_core/surfacing.py`	yes source ↗
2D drawings (views/dims/sections)	yes `src/components/DrawingView.jsx`	yes source ↗
Configurations / family variants	yes `src/components/ConfigurationsPanel.jsx`	yes source ↗
NURBS surfacing (blend/network/patch)	yes `packages/kerf-cad-core/src/kerf_cad_core/geom/network_srf.py`	yes source ↗
GD&T on drawings / MBD / PMI	yes `packages/kerf-gdnt/src/kerf_gdnt/feature_control_frame.py`	yes source ↗
Standard parts library (ISO/DIN fasteners, bearings, profiles)	yes `packages/kerf-parts/src/kerf_parts/tools.py`	partial source ↗

D2 Structural / FEA 0 of 4 matched

Capability	Kerf	Onshape
FEM linear static + modal (built-in)	yes `packages/kerf-structural/src/kerf_structural/aisc_member.py`	paid tier source ↗
AISC 360-22 steel (members)	yes `packages/kerf-structural/src/kerf_structural/aisc_member.py`	no source ↗
Fatigue (S-N, ε-N, rainflow)	yes `packages/kerf-cad-core/src/kerf_cad_core/fatigue/life.py`	no source ↗
ASCE 7-22 seismic / wind	yes `packages/kerf-cad-core/src/kerf_cad_core/seismic/rsa.py`	no source ↗

D3 Machine elements 0 of 4 matched

Capability	Kerf	Onshape
Spur/helical gear rating (AGMA/ISO 6336)	yes `packages/kerf-cad-core/src/kerf_cad_core/gearstrength/iso6336.py`	no source ↗
Bearings — ISO 281 / ISO/TS 16281	yes `packages/kerf-cad-core/src/kerf_cad_core/bearings/select.py`	no source ↗
Planetary / epicyclic gearbox	yes `packages/kerf-cad-core/src/kerf_cad_core/gearbox/planetary.py`	no source ↗
Springs (compr/ext/torsion/Belleville)	yes `packages/kerf-cad-core/src/kerf_cad_core/springs/design.py`	no source ↗

D4 Thermal / fluid / HVAC 0 of 3 matched

Capability	Kerf	Onshape
Heat exchangers (LMTD + ε-NTU + Bell-Delaware)	yes `packages/kerf-cad-core/src/kerf_cad_core/heatxfer/shell_tube_bell.py`	no source ↗
Steam/water properties (IAPWS-IF97)	yes `packages/kerf-cad-core/src/kerf_cad_core/fluids/iapws_if97.py`	no source ↗
CFD	yes `packages/kerf-cad-core/src/kerf_cad_core/heatxfer/transfer.py`	paid tier source ↗

D5 Aero / marine / space 0 of 3 matched

Capability	Kerf	Onshape
3D wing VLM (+ viscous + compressibility)	yes `packages/kerf-aero/src/kerf_aero/vlm_viscous.py`	no source ↗
Orbital mechanics (Kepler, J2/J3, Hohmann)	yes `packages/kerf-aero/src/kerf_aero/vlm.py`	no source ↗
Naval hydrostatics + GZ stability (IMO)	yes `packages/kerf-marine/src/kerf_marine/stability.py`	no source ↗

D6 Electronics / EDA / silicon 0 of 5 matched

Capability	Kerf	Onshape
Schematic capture (KiCad round-trip, ERC)	yes `src/components/SchematicView.jsx`	partial source ↗
PCB layout (tscircuit, KiCad round-trip)	yes `src/components/PCBView.jsx`	partial source ↗
Signal integrity (Z0/crosstalk/eye/IBIS)	yes `packages/kerf-electronics/src/kerf_electronics/si/ibis_parser.py`	no source ↗
Silicon synth (Yosys) / STA / GDS / DRC / LVS	yes `packages/kerf-silicon/src/kerf_silicon/analog/pvt.py`	no source ↗
Analog PVT corner simulation	yes `packages/kerf-silicon/src/kerf_silicon/analog/pvt.py`	no source ↗

D7 Manufacturing / CAM 0 of 6 matched

Capability	Kerf	Onshape
3-axis CAM (profile/contour/pocket/face)	yes `src/components/CAMView.jsx`	paid tier source ↗
5-axis CAM (kinematics + posts)	yes `packages/kerf-cam/src/kerf_cam/adaptive.py`	paid tier source ↗
Feeds & speeds + tool-life	yes `packages/kerf-cad-core/src/kerf_cad_core/cuttingtool/tool_life.py`	partial source ↗
Moldflow / fill simulation	yes `packages/kerf-manufacturing/src/kerf_manufacturing/moldflow/flow_front.py`	no source ↗
Nesting (skyline + true-shape NFP)	yes `packages/kerf-cad-core/src/kerf_cad_core/nesting/nfp.py`	no source ↗
FDM slicing (Cura)	yes `src/components/PrintSliceView.jsx`	no source ↗

D8 Civil / infrastructure / geo 0 of 2 matched

Capability	Kerf	Onshape
Horizontal+vertical alignment (clothoid, SSD)	yes `packages/kerf-civil/src/kerf_civil/superelevation.py`	no source ↗
Geotech (bearing/settlement/slope/pile/liquefaction)	yes `packages/kerf-cad-core/src/kerf_cad_core/geotech/liquefaction.py`	no source ↗

D9 Dynamics / motion / controls 0 of 4 matched

Capability	Kerf	Onshape
Planar MBD (Lagrange/DAE, Baumgarte)	yes `packages/kerf-cad-core/src/kerf_cad_core/dynamics/rigidbody.py`	no source ↗
Vibration n-DOF modal / FRF	yes `packages/kerf-cad-core/src/kerf_cad_core/vibration/mdof.py`	paid tier source ↗
Controls — state-space / LQR / Kalman	yes `packages/kerf-cad-core/src/kerf_cad_core/controls/statespace.py`	no source ↗
Robotics 6-DOF spatial IK	yes `packages/kerf-cad-core/src/kerf_cad_core/robotics/arm.py`	no source ↗

D10 Electrical / energy / PLC 0 of 5 matched

Capability	Kerf	Onshape
AC load-flow (Ybus / Newton-Raphson)	yes `packages/kerf-cad-core/src/kerf_cad_core/elecpower/loadflow.py`	no source ↗
Solar PV (system + partial shading)	yes `packages/kerf-cad-core/src/kerf_cad_core/solarpv/shading.py`	no source ↗
Wiring/harness (WireViz + 3D router)	yes `src/components/WiringView.jsx`	no source ↗
PLC IEC 61131-3 (ST/Ladder/FB/motion)	yes `src/components/PLCView.jsx`	no source ↗
Firmware build/upload/monitor/debug	yes `src/components/FirmwareActions.jsx`	no source ↗

D11 Tolerancing / metrology / QA 2 of 5 matched

Capability	Kerf	Onshape
GD&T data model (ASME Y14.5)	yes `packages/kerf-gdnt/src/kerf_gdnt/feature_control_frame.py`	yes source ↗
Limits & fits (ISO 286)	yes `packages/kerf-gdnt/src/kerf_gdnt/inspection_report.py`	yes source ↗
Tolerance stackup — 1D (WC/RSS/MC)	yes `packages/kerf-cad-core/src/kerf_cad_core/tolstack/stack.py`	no source ↗
Tolerance stackup — 3D vector loop	yes `packages/kerf-cad-core/src/kerf_cad_core/tolstack/tol3d.py`	no source ↗
SPC control charts (Shewhart/CUSUM/EWMA)	yes `packages/kerf-cad-core/src/kerf_cad_core/spc/charts.py`	no source ↗

D12 Optics / acoustics 0 of 2 matched

Capability	Kerf	Onshape
Paraxial ABCD ray transfer	yes `packages/kerf-cad-core/src/kerf_cad_core/optics/lens.py`	no source ↗
Acoustics (ISO 9613, RT60, weighting, mass-law TL)	yes `packages/kerf-cad-core/src/kerf_cad_core/acoustics/wave.py`	no source ↗

D13 Verticals 0 of 2 matched

Capability	Kerf	Onshape
Jewelry (41 modules)	yes `src/routes/JewelryShare.jsx`	no source ↗
BIM (walls/slabs/framing/stairs/IFC4)	yes `src/components/BIMView.jsx`	no source ↗

D14 Cost / materials / LCA 0 of 3 matched

Capability	Kerf	Onshape
Should-cost (6 processes, Boothroyd-Dewhurst)	yes `packages/kerf-lca/src/kerf_lca/phases.py`	no source ↗
Material selection (Ashby)	yes `packages/kerf-cad-core/src/kerf_cad_core/matsel/multi_objective.py`	partial source ↗
LCA (full ISO 14040/44 4 phases)	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.