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Run your business from one place.

PRAXAO brings quotes, invoices, clients, products, cash and day-to-day follow-up into one professional workspace. Free tools to start, a free account to save your work.

What you can manage with PRAXAO

The business functions available in your account today.

Quotes and invoices

Create quotes, convert them into invoices, order forms and delivery notes, with automatic numbering and PDF export.

Clients and suppliers

Keep client and supplier files, follow your customer relationships and your purchases.

Products, services and stock

A catalogue of products and services, price lists, stock levels, warehouses and inventory.

Cash and finance

Treasury, expenses, cheques, bank statement import and amounts owed to you.

Accounting and VAT

Accounting entries, trial balance and a VAT journal. These are working tools, not a replacement for your accountant.

Organisation and follow-up

Agenda, tasks, team access, automations and the WorkerBox assistant to keep the day under control.

Some functions depend on your plan. See the plans for the exact limits. See plans and prices

BUILIVA | the construction universe of PRAXAO

Built for builders, contractors and site managers: calculate quantities, estimate materials and turn the result into a quote.

  • Quantities and take-offs: concrete, blocks and bricks, screed, paint, tiles and more.
  • Reinforcement: rebar weights, bending schedules and reinforced-concrete details.
  • Projects, saved calculations and your own price book.
  • From calculation to quote: send the quantities straight into a PRAXAO quote.
Open BUILIVA

Popular free tools

Open a tool and use it right away, no account needed.

Quote Generator

Prepare a clear quote or estimate for your client, with validity date, taxes and totals, ready as PDF.

Invoice Generator

Create a professional invoice with taxes, discounts and your logo, then download it as PDF or print it.

VAT Calculator

Add or remove VAT from any amount and see the net price, the tax and the gross price instantly.

BUILIVA

Reinforced Concrete

Column, footings and beam: concrete, formwork with or without, pours, stripping and bars by mark, stirrups, starter bars and meshes.

BUILIVA

Tile Calculator

Number of tiles and boxes for a floor or wall, with grout joints and a cutting waste margin.

BUILIVA

Paint Calculator

How much paint you need for your walls and ceilings, minus doors and windows, for the number of coats you plan.

View all tools

Why PRAXAO

Free to start

Free to use without an account, within a fair limit: 5 calculations a week; a free member account gives 5 a day. No trial period.

Exact calculations

Amounts are computed with exact decimal arithmetic and correct rounding for each currency.

Private by design

Your figures are calculated in your browser. We do not sell data and collect only anonymous usage statistics.

Seven languages

English, French, Spanish, German, Italian, Portuguese and Arabic, with localized numbers, currencies and documents.

Practical guides

View all guides