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Compare/HAZOP Software

HAZOP Software Comparison 2026

Compare HAZOP tools: Pathnovo extracts and digitizes existing HAZOP registers. PHA-Pro, Open-PHA, and HAZOP Manager create new HAZOP studies. Different products for different needs.

Extracts from existing HAZOP PDFs, does not require re-doing the study

Processes 800-3,000 page HAZOP studies into queryable registers

Maps actions to current P&ID revisions automatically

OISD 118 compliance-ready output for Indian regulatory audits

Action priority classification and closure tracking

PHA-Pro

HAZOP study creation and facilitation tool

Industry standard for HAZOP study facilitation
Bowtie analysis integration
Creates new studies, does not extract from existing PDFs
No P&ID integration
No OISD 118 compliance output

Open-PHA

Open-source HAZOP study tool

Free and open-source
Basic HAZOP worksheet creation
No extraction from existing documents
No action tracking
No regulatory compliance output
What is the difference between HAZOP study software and HAZOP register extraction?

HAZOP study software (PHA-Pro, Open-PHA) helps facilitators create new HAZOP studies during design reviews. HAZOP register extraction (Pathnovo) digitizes existing HAZOP study PDFs into structured, queryable registers with action tracking. They solve different problems.

Can Pathnovo replace PHA-Pro?

No, they are complementary. PHA-Pro creates HAZOP studies. Pathnovo processes the output (the PDF report) into structured registers. Use PHA-Pro to facilitate the study, then Pathnovo to manage the resulting actions and maintain OISD 118 compliance.

See what your documents actually contain.

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