OpenConstructionERP vs Buildxact

OpenConstructionERP9.4Visit BBuildxact9.1Visit

Higher score OpenConstructionERP #1 in Construction Estimating Software 9.4/10 Free plan Free plan✓ 4 of 5 features Visit site

vs

B Buildxact #3 in Construction Estimating Software 9.1/10 Free plan · 14-day trial Free planFree trial✓ 1 of 5 features Visit Buildxact

• OpenConstructionERP fits best

  Open-source teams needing full estimating depth

• Buildxact fits best

  Small contractors needing estimating and job management

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Side by side

Feature	OpenConstructionERP 9.4/10 Visit ↗	BBuildxact 9.1/10 Visit ↗
At a glance
Editor score	9.4	9.1
Ranking	#1 in Construction Estimating Software	#3 in Construction Estimating Software
Best for	Open-source teams needing full estimating depth	Small contractors needing estimating and job management
Pricing model	Free	Free plan + paid
Starting price	Free plan	$169/mo
Free plan	✓	✓
Free trial	—	14 days
Deployment	Self-hosted, Desktop	Cloud, Mobile
Platforms	Web, Windows, macOS, Linux	Web, iOS, Android
Integrations	6 integrations	4 integrations
Features OpenConstructionERP 4/5 · Buildxact 1/5
Digital takeoff	✓ (best)	Not checked yet
Assembly library	✓ (best)	Not checked yet
Labor and material costs	✓ (best)	Not checked yet
Bid management	✓	✓
Accounting integrations	—	Not checked yet
Specs
Estimate limit	Not checked yet	Not checked yet
Platform	Hybrid	Not checked yet
Our review
Pros	BOQ, cost databases, assemblies, and hierarchical estimate management CAD/BIM and PDF takeoff across major construction file formats Free AGPL-3.0 model with web, desktop, API, and self-hosted options	PDF takeoffs, AI estimating, bids, and professional proposals Scheduling, cost tracking, purchase orders, invoicing, and accounting integrations Web, iOS, and Android collaboration for files, photos, logs, and updates
Cons	Accounting integrations are not included The broad feature set may exceed the needs of simple estimating teams AI-assisted workflows require connections to external LLM providers	Paid plans start at $169 per month when billed annually Advanced estimating and controls require higher-tier plans The free Go plan has five complimentary credits
Our verdict	OpenConstructionERP is an open-source, self-hosted construction ERP for companies managing estimating and project workflows. Its core scope covers bills of quantities, hierarchical cost estimates, construction cost databases, resource… Read the review →	Buildxact is cloud-based construction estimating and project management software for residential builders, remodelers, and small contractors. It brings digital takeoffs from PDF plans, AI-assisted estimating, professional proposals, bid… Read the review →

Strengths and trade-offs

• OpenConstructionERP — where it wins

  • BOQ, cost databases, assemblies, and hierarchical estimate management
  • CAD/BIM and PDF takeoff across major construction file formats
  • Free AGPL-3.0 model with web, desktop, API, and self-hosted options

  Where it doesn't

  • Accounting integrations are not included
  • The broad feature set may exceed the needs of simple estimating teams
  • AI-assisted workflows require connections to external LLM providers

• Buildxact — where it wins

  • PDF takeoffs, AI estimating, bids, and professional proposals
  • Scheduling, cost tracking, purchase orders, invoicing, and accounting integrations
  • Web, iOS, and Android collaboration for files, photos, logs, and updates

  Where it doesn't

  • Paid plans start at $169 per month when billed annually
  • Advanced estimating and controls require higher-tier plans
  • The free Go plan has five complimentary credits

• OpenConstructionERP9.4/10 · Free plan

  A free, open-source estimating platform with unusually broad takeoff, modeling, and tendering coverage.

  Visit siteFull verdict →
• BBuildxact9.1/10 · Free plan · 14-day trial

  A broad construction workflow platform with a free plan and a high paid entry price.

  Visit BuildxactFull verdict →