Asphalyn
Built for independent process safety consultants

Every deviation, accounted for.

Asphalyn keeps every assessment with the criteria it was made against, and traces every recommendation from the deviation that raised it to a close-out with sign-off.

Sign-off fields support your internal review workflow. Asphalyn does not certify or approve engineering outputs; every study and deliverable must be independently reviewed and approved by qualified personnel.

Configurable risk matrix & LOPA threshold
LOPA with conditional modifiers
SIF register for SIL verification
Close-out reports with sign-off
Asphalyn HAZOP worksheet with node sidebar, LOPA panel, and action tracking

One Platform. The Whole Study. One Deliverable.

The workflow and the deliverable in one place.

The Worksheet

Keeps up with the room.

Scenarios per deviation, your own guidewords, shortcuts and undo. Recording keeps pace with the discussion, not the other way round.

Risk Criteria

Kept with every assessment.

Presets or your own matrix, up to 10 levels per axis. Each row keeps the criteria it was assessed against.

LOPA

No silent drift.

IPLs, modifiers and your threshold on the same scenario. Policy changes are flagged. Re-evaluation happens only when you decide.

Actions

Traceable to close-out.

One step from recommendation to tracked action. One action can close several deviations. Closing one requires a comment.

Team & Sessions

The workshop, documented.

Team, roles, sessions and attendance recorded with the study, and carried into the report as their own sections.

Exports

A deliverable, not a dump.

Unbranded PDF, Word and Excel with methodology, SIF register and sign-off. A response sheet for every action.

Also included: SIF register and incident records.

The consultant's reality

HAZOP is a thinking exercise. Not a report-formatting job.

The tool should stay out of the way while the room works, and produce the deliverable when the room is done.

The old workflow
Disconnected tools, manual assembly
  • Per-seat cost, or a spreadsheet rebuilt every project
  • LOPA in a separate file
  • Actions tracked in Excel
  • Manual report assembly
  • Revisions start from scratch
The Asphalyn workflow
One workspace, from worksheet to sign-off
  • One connected HAZOP worksheet
  • LOPA on the same row
  • Recommendation → action in one step
  • Close-out report from live data
  • Export and revise without rework

From the first deviation to the signed close-out.

Every step stays attached to the deviation that raised it, so the record reads the same way from the worksheet to the final report.

  1. Step 1

    Worksheet

    Record each deviation with its causes, consequences and safeguards as the room works. Edits save as you type.

  2. Step 2

    Risk & LOPA

    Rate initial and residual risk against the criteria in force, and add LOPA to the same scenario.

  3. Step 3

    Linked Actions

    Turn a recommendation into an action in one step. One action can close several deviations.

  4. Step 4

    Exports

    Issue a report with methodology and sign-off, plus a close-out report with a response sheet per action.

Priced for Independent Consultants

Start free. Upgrade when you need to export or run a second study. Per workspace, not per seat. No hidden user fees. No annual lock-in.

Free

A persistent workspace with the essentials to explore and manage your HAZOP work.

Free

No credit card required

Includes

  • 1 HAZOP study
  • Up to 5 nodes
  • Up to 45 rows
  • Up to 45 analyses (scenarios)
  • Up to 10 actions
  • Up to 10 incidents
  • Risk matrix (initial & residual)
  • Configurable risk matrix — 4 presets or your own custom matrix
  • Custom LOPA acceptability threshold
  • LOPA with conditional modifiers
  • SIF definition on each scenario, with a register in the study export
  • Reference documents, with categories and revisions
  • Recommendation → action in one step
  • Single-user workspace
  • One PDF export with selectable sections for the lifetime of the workspace (not per study)
Recommended

Professional

The complete workspace for independent consultants. Unlimited studies, full export, formal close-out reports.

$149

USD per workspace / month

Includes

  • Everything in Free
  • Unlimited HAZOP studies
  • Unlimited nodes, rows, actions & incidents
  • Unlimited scenarios (analyses)
  • Study team register with roles and organisations
  • Session schedule with date, time, location and agenda
  • Attendance matrix — Present / Partial / Absent
  • Action Close-Out Report with per-action sign-off
  • Unlimited exports in PDF, Word, Excel & CSV (fair use)
  • Full-study export with selectable sections
  • Standalone Action & Incident register exports
  • Import actions & incidents from CSV/Excel

Team

A shared workspace for small consulting teams that need collaboration.

$249

USD per workspace / month

Includes

  • Everything in Professional
  • Up to 11 workspace members
  • Invite and manage team members
  • Multi-member access to shared actions & incidents
  • Comments on HAZOP rows
  • Full activity logs with before-and-after change tracking

Every paid workspace includes the full workflow. Upgrade only when you need collaboration or more seats. All plans are billed per workspace and can be cancelled at any time. A cancelled workspace keeps its data and can be resubscribed later.

“Unlimited exports” means unlimited within normal usage. If your usage is significantly above normal patterns, we may contact you to discuss your needs. We will never silently throttle or block your exports.

Questions consultants
usually ask first

Short answers on what Asphalyn does today, in the order they usually come up.

Complete workflow
Study creation, nodes, risk work, actions, incidents, and reporting in one place.
Built for consultants
Practical for independent engineers and small teams, not enterprise bloat.

Start your next study in Asphalyn.

Run a real study end to end — the worksheet, the LOPA, the actions, the incidents, and the close-out report in one workspace.

Have Questions About Asphalyn?

Whether you want to learn more about the platform, request a demonstration, or discuss your process safety requirements, feel free to get in touch.