Ask your projects data anything. Get answers in seconds. Plexa MCP Connector is live. See it in action

FREE TOOLS

Free tools for Australian builders

Calculators and document generators for the work commercial builders actually do: contracts, compliance and cost. Free to use, no signup, and no email needed to see your answer.

Money, contracts and claims

4 tools

What a delay, a levy or a retention is actually going to cost you, worked out before it lands on the final account.

Long Service Levy Calculator

Find out what the levy costs on your project and when it has to be paid, in any state, before it holds up your approval.

Open tool

Long Service Levy Calculator

Find out what the levy costs on your project and when it has to be paid, in any state, before it holds up your approval.

Open tool

Security of Payment Timeline Calculator

Enter one reference date and get every deadline that follows it, so a missed payment schedule never costs you a claim.

Open tool

Security of Payment Timeline Calculator

Enter one reference date and get every deadline that follows it, so a missed payment schedule never costs you a claim.

Open tool

Liquidated Damages Exposure Calculator

See what the delay is really costing you once EOTs and the contract cap are applied, before the next client meeting.

Open tool

Liquidated Damages Exposure Calculator

See what the delay is really costing you once EOTs and the contract cap are applied, before the next client meeting.

Open tool

Retention vs Bank Guarantee Calculator

Work out which is cheaper on this job: cash held back for two years, or the fee on a bank guarantee.

Open tool

Retention vs Bank Guarantee Calculator

Work out which is cheaper on this job: cash held back for two years, or the fee on a bank guarantee.

Open tool

Documents, dates and deadlines

7 tools

The paperwork and the programme dates a job runs on, generated properly instead of rebuilt from the last project.

ITP Builder

Get an inspection and test plan with the hold points, witness points and acceptance criteria already in place for your trade.

Open tool

ITP Builder

Get an inspection and test plan with the hold points, witness points and acceptance criteria already in place for your trade.

Open tool

Dilapidation Report Builder

Record the neighbouring property room by room from your phone and walk away with a dated report that holds up later.

Open tool

Dilapidation Report Builder

Record the neighbouring property room by room from your phone and walk away with a dated report that holds up later.

Open tool

Practical Completion & Defects Liability Calculator

Enter your PC date and get everything that hangs off it: DLP expiry, final claim, and both retention release dates.

Open tool

Practical Completion & Defects Liability Calculator

Enter your PC date and get everything that hangs off it: DLP expiry, final claim, and both retention release dates.

Open tool

RFI Generator & Deadline Tracker

Write an RFI clear enough to actually get answered, and know the exact day a late response starts costing you time.

Open tool

RFI Generator & Deadline Tracker

Write an RFI clear enough to actually get answered, and know the exact day a late response starts costing you time.

Open tool

Construction Management Plan Builder

Answer the council’s questions once and get a CMP covering hours, deliveries, noise, dust and neighbour notification.

Open tool

Construction Management Plan Builder

Answer the council’s questions once and get a CMP covering hours, deliveries, noise, dust and neighbour notification.

Open tool

EOT Claim Calculator

Check whether the delay is claimable under your contract, and how many days you have left to give notice.

Open tool

EOT Claim Calculator

Check whether the delay is claimable under your contract, and how many days you have left to give notice.

Open tool

Working Days Calculator

Count the days you can actually build on. Public holidays, RDOs, the Christmas shutdown and weather allowances included.

Open tool

Working Days Calculator

Count the days you can actually build on. Public holidays, RDOs, the Christmas shutdown and weather allowances included.

Open tool

Safety, quality and environment

8 tools

Site-ready SWMS, permits, registers and plans your crews can pick up and use on the day.

SWMS Generator

Produce a SWMS for your trade’s high-risk work with the hazards, risk ratings and controls already filled in.

Open tool

SWMS Generator

Produce a SWMS for your trade’s high-risk work with the hazards, risk ratings and controls already filled in.

Open tool

Traffic Management Plan Builder

Get a TMP for works affecting the road, with the impacts, controls and approvals sorted before the first truck turns up.

Open tool

Traffic Management Plan Builder

Get a TMP for works affecting the road, with the impacts, controls and approvals sorted before the first truck turns up.

Open tool

LTIFR & TRIFR Calculator

See your safety frequency rates and how they compare against published Australian construction benchmarks.

Open tool

LTIFR & TRIFR Calculator

See your safety frequency rates and how they compare against published Australian construction benchmarks.

Open tool

Toolbox Talk Generator

Pick a hazard or a trade and get a one-page talk and sign-on sheet, ready before the crew finishes their coffee.

Open tool

Toolbox Talk Generator

Pick a hazard or a trade and get a one-page talk and sign-on sheet, ready before the crew finishes their coffee.

Open tool

Asbestos & Hazardous Materials Register

Build the register a pre-2004 building legally needs, with risk ratings, controls and review dates already set.

Open tool

Asbestos & Hazardous Materials Register

Build the register a pre-2004 building legally needs, with risk ratings, controls and review dates already set.

Open tool

Environmental & Waste Management Plan

Cover the waste, noise, dust and sediment conditions on your DA in a single plan you can hand to the site team.

Open tool

Environmental & Waste Management Plan

Cover the waste, noise, dust and sediment conditions on your DA in a single plan you can hand to the site team.

Open tool

Site Induction Builder

Turn this project’s real hazards and rules into an induction pack and sign-on record, not a generic template.

Open tool

Site Induction Builder

Turn this project’s real hazards and rules into an induction pack and sign-on record, not a generic template.

Open tool

Permit-to-Work Generator

Issue confined space, hot work and heights permits that line up with the SWMS your crews are already working to.

Open tool

Permit-to-Work Generator

Issue confined space, hot work and heights permits that line up with the SWMS your crews are already working to.

Open tool

Procurement and subcontractors

3 tools

Know what you are really buying, and who you are really buying it from, before you sign anything.

Tender Comparison & Bid Levelling

Price back in everything the cheap bid left out, and see which tender is genuinely the best value.

Open tool

Tender Comparison & Bid Levelling

Price back in everything the cheap bid left out, and see which tender is genuinely the best value.

Open tool

Subcontractor Prequalification Scorecard

Score subbies on insurance, licences, financial capacity and safety record before you let the package, not after.

Open tool

Subcontractor Prequalification Scorecard

Score subbies on insurance, licences, financial capacity and safety record before you let the package, not after.

Open tool

Construction Software Cost Calculator

Add up what your current stack really costs once licences, admin time and reconciliation are counted.

Open tool

Construction Software Cost Calculator

Add up what your current stack really costs once licences, admin time and reconciliation are counted.

Open tool

Why we built these

Every one of these tools started as a spreadsheet somebody rebuilt from scratch on a Monday morning. Levy rates that differ across eight jurisdictions. Retention release dates counted by hand. An LD exposure calculated three different ways by three different people in the same meeting.

None of these questions are hard. They are just fiddly, jurisdiction-specific and easy to get wrong, which is exactly what software should absorb. So we built the answers and put them here, free and ungated.

If a tool tells you something useful, the same logic runs continuously inside Plexa against your live project data, rather than being recalculated whenever someone asks.

The AI Construction Operating System

One platform, one data model, every project. Built in Australia, for the world.

YOUR DATA, PROTECTED

Hosted on AWS Sydney with Australian data residency.

GET THE MOBILE APP