discipline = structural; tools = free; automation = yes;

Engineering tools, built for structural engineers.

Seed43 builds software for engineering, and every tool starts on a structural job: documenting steel and concrete in Revit, coordinating models in Navisworks, reviewing fabrication models, and inspecting the work on site.

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12: structural tools and apps
Free: tools, for everyone
100%: open source pyRevit
NZ: built in Aotearoa

[01] New

MCP for Navisworks®

Connects AI apps to the model you have open, so finding items, hiding and colouring them, building sets and saving models happens from a plain-English request.

Find and read. Search the model by any property, walk the selection tree, read item properties and bounding boxes, and list the values a property takes.
Hide and colour. Hide or show items by rule, override colours, or colour the whole model by a property in one go. Every change can be undone.
Search and selection sets. Create search sets and selection sets from conditions you describe, and change what is selected.
Models and files. Append and remove models, open and save documents, and export NWD files.

See the tools Download

example session · AI + navisworks

you Hide every item named "Lines" or "Center line" in all models. Do a dry run first and tell me how many it finds.

[01] In your browser

Seed43 Studio

Open structural steel and BIM models (StruCad BSW, IFC, STEP, IGES, USD, DXF, OBJ) with nothing to install, check marks, sections and grades, measure, and convert between formats.

Eight formats. BSW, IFC, STEP, IGES, USD, DXF, STL and .seed.
Measure. Point to point, in real-world coordinates.
Convert. Export to another format in the browser.

Open Studio

[01] For Revit®

pySheets

Batch PDF, DWG, DGN and NWC exports from Revit with naming rules and setups you can save.

Every format at once. PDF, DWG, DGN and NWC from one queue.
On a schedule. Set it to run overnight and come back to finished sets.
Naming rules. File names built from sheet parameters, the same every time.
Saved setups. Save an export setup once and run it again on the next issue.

Learn more Download

pysheets · scheduled run · 02:00

S-001 Cover sheet PDFDWG ✓

S-101 General arrangement L1 PDFDWG ✓

S-102 General arrangement L2 PDFDWG ✓

S-201 Sections PDFDWG ✓

S-301 Connection details PDFDWG ✓

S-101_C02_General arrangement L1.pdf Named by rule

[01] On site

Seed43 Field

Inspections with photos, voice notes and hazards on site; reports and the PS4 evidence record in the office.

Capture on site. Photos, voice notes and hazards recorded as you walk the job, on the phone you already carry.
Reports in five layouts. Inspection reports straight from the visit, as PDF or Word, in your own letterhead.
PS4 evidence. Every inspection lands in the record behind your producer statement. Field compiles the evidence; you sign the PS.
Rectifications. Defects raised on site, sent to the right person, and followed until they are closed.

See Field and pricing

InspectionLevel 2 steel

✓ Bolts tensioned, grid C
✓ Base plates grouted
! Bracing cleat, grid B/4 Defect raised
✓ Voice note added

Add to PS4 record

[02] Products

Everything in the toolbox

Open any card for the short version, or go to the product page for the long one.

[01] Free

Tools for Revit®

5 tools

pyRevit tools for documenting, issuing and managing Revit® models.

See the tools

[02] New

Tools for Navisworks®

5 tools

Five Seed43 apps for Navisworks® Manage 2027, including MCP for AI apps.

See the tools

[03] Free

Seed43 Studio

App

View, check and convert structural steel models in your browser.

Open

[04] NZ only

Seed43 Field

App

Construction monitoring and PS4 evidence, from the phone in your pocket.

Open

[03] The idea

Made by structural people, for structural work

Engineering first

Every tool comes out of a real structural project: drawings to issue, models to check, steel to coordinate, sites to inspect.

The whole job

From the Revit model to the issued drawing set, the coordination model, the fabrication model and the PS4 on site, end to end.

The deal

The pyRevit tools are free and open source. If one saves you a day, your support keeps the next one coming.

[04] Get started

Pick a tool and get the afternoon back

5 files ready to download.

Downloads GitHub