Primavera P6 schedule review

Review Primavera P6 schedules
with transparent, independent checks

Check your Primavera P6 XER, see which activities need attention, and download clear PDF and Excel reports. Your file stays in your browser during PlanProof Quick Check.

Try a sample
PLANPROOF QUICK CHECK

Validate your P6 schedule

Your XER stays in this browser. Sign in only when you choose to save reports.

XER

Watch how PlanProof works

60 seconds, start to finish.

Prefer reading? See the methodology page for the full breakdown.

Video transcript

Every construction schedule hides risks. Missed logic, impossible float, broken calendars — the faults that blow up programmes months later.

Finding them in Primavera P6 means digging through XER files, filters and spreadsheets. Slow, inconsistent, and hard to defend in front of a client.

PlanProof is a free set of schedule review tools. Upload your P6 XER, and it runs twenty transparent diagnostic checks — open ends, float, constraints, progress integrity, and more.

Your file never leaves your browser during the quick check. You get a quality score, activity-level evidence behind every finding, and clear guidance on what to fix.

Every rule is published. Every limitation is disclosed. Download PDF and Excel reports, compare updates over time, and keep a full audit trail in your private workspace.

Free tools. No expiry. No card required. Visit planproof.co, and validate your schedule today.

SEE THE PRODUCT, NOT A PROMISE

A complete schedule review—open to inspect.

Explore a synthetic XER with known issues and a revised teaching sample. The score, category movement, activity evidence and downloads are produced by the same engine used for customer schedules.

Open the interactive sample
NORTH TERMINAL EXPANSIONUPDATE CORRECTION
Before8112 finding groups
After1000 finding groups
+19 Quality score movementNT-1.0 Versioned synthetic samplev1.2 Published scoring model
20 diagnostic checks
in the free schedule review
29/29 published accuracy fixtures
with methods and limitations disclosed
PlanProof Quick Check · Browser-local
designed to keep the quick review on your device
FROM FILE CHECKER TO REVIEW SYSTEM

Schedule assurance built around evidence.

PlanProof gives planners a repeatable review process: diagnose the current update, prove every exception at activity level, compare movement between submissions, and retain an audit trail in one private workspace.

01 · DIAGNOSE

PlanProof Quick Check

Test open ends, float, constraints, durations, actual dates, progress integrity, calendars, relationship structure, leads, lags and corrupt logic.

Inspect every check
02 · COMPARE

Compare XER Updates

Measure health-score movement, activity and relationship changes, category performance, and the exact finding groups that improved or deteriorated.

Open Compare XER Updates
03 · CONTROL

PlanProof Workspace

Keep a private register of every validation with score trends, critical-exception totals, data dates, activities, reports and comparison access.

Sign in to open the workspace
04 · DEFEND

Reports that show the evidence

Move from a headline score to affected activity IDs, names, values, severity and practical corrective guidance. Export the record to PDF or Excel.

Read the scoring method
Project controls professional reviewing a construction schedule in an office
WHY PLANPROOF EXISTS

Built for the people who must explain the schedule.

Schedule reviews often happen under deadline pressure, inside complex XER files, with findings scattered across filters and spreadsheets. PlanProof turns that review into a repeatable evidence trail.

Transparent rulesActivity-level proofVisible limitations
Planner reviewing project drawings at a large industrial site
ONE QUALITY METHOD. MANY PROJECT ENVIRONMENTS.

For industries that run on complex schedules.

PlanProof evaluates Primavera P6 XER structure rather than industry-specific commercial rules. That makes its diagnostic workflow useful wherever teams need explainable schedule-quality evidence.

Construction

Buildings, mixed-use and major programmes

Oil & Gas

Facilities, shutdowns and EPC delivery

Infrastructure

Transport, utilities and public works

Energy

Generation, transmission and renewables

Industrial

Manufacturing and process facilities

Data Centres

Fast-track technical construction
Industry labels describe common P6 use cases. PlanProof does not replace project specifications or sector-specific professional review.
ONE REPORT. NO GUESSWORK.

From thousands of activities
to the risks that matter.

PlanProof reads the source XER without recalculating or modifying it, applies a disclosed rule set, and produces a prioritised action list.

01

Upload

Bring a Primavera P6 XER export up to 100 MB. The raw schedule is processed in memory and discarded.

02

Analyse

We parse activities, relationships, calendars and project controls, then apply 20 schedule integrity checks.

03

Act

Receive saved activity-level evidence, prioritised corrective guidance, update comparisons, PDF and Excel reports.

Review the complete validation methodology
PLANPROOF WORKSPACE

One upload starts the review.
History makes it powerful.

Every validation becomes part of a private workspace where planners can track schedule quality, compare updates, investigate activity-level evidence, and export professional reports.

  • Portfolio metrics and score trends
  • Update-to-update category and finding comparison
  • Activity evidence, corrective guidance, PDF and Excel
Sign in to open PlanProof Workspace
North Expansion · Update 14HEALTH SCORE
78
−6since last update
Logic quality82
Float health61
Constraints91
Progress integrity76
Primary risk8 activities have negative float below −10 days.
FREE TOOLS. OPTIONAL EXPERT SUPPORT.

Use PlanProof freely.
Buy the bundle when it helps.

No trial clock, card requirement or monthly validation quota. Learn the workflow with free tools, demonstrations and practical guides.

NO EXPIRY

Free tools

Free

For every planner, every review.

  • PlanProof Quick Check and XER Schedule Viewer
  • Local update comparisons and Progress Measurement Sheet (PMS)
  • PDF, Excel and CSV exports
  • Free PlanProof Workspace with sign-in
  • No monthly limits
Explore all free tools
LEARN BY DOING

Practical guides

Free

Five focused lessons, each linked to a working demonstration.

  • Open logic and progress integrity
  • Schedule comparisons
  • Resource-weighted progress
  • Recovery readiness
Open the learning library

The optional bundle never unlocks or limits the tools. Prices, scope and delivery are agreed before any bundle payment. Technical file-size and service-protection limits still apply.

THE TRUST STANDARD

Every flag must be explainable. Every limitation must be visible.

PlanProof was created by Muhammad Akhtar to make rigorous schedule review more transparent, accessible and useful to the people responsible for the plan. We publish the diagnostic rules, show the triggering evidence and clearly mark what the platform does not evaluate.

Questions, edge cases and methodology feedback are welcome at support@planproof.co.

PlanProof is independent software and is not affiliated with Oracle, the U.S. Department of Defense, or the Defense Contract Management Agency.
SCHEDULE VALIDATION FAQ

Questions serious review teams ask.

Does PlanProof modify or recalculate my schedule?

No. PlanProof is read-only. It parses the exported XER and evaluates the supplied data without changing dates, float, logic or calendars.

Which schedule formats are supported?

The production validator currently supports Primavera P6 XER. Microsoft Project MPP and Asta Powerproject PP remain planned and are not advertised as available.

What is included in each validation?

Health and category scores, prioritised findings, affected activity evidence, severity, corrective guidance, saved history, and downloadable PDF and Excel reports.

How is this different from a generic file checker?

PlanProof retains the diagnostic result, tracks quality over time and compares two submissions to show which risks appeared, improved or remained unresolved.

Is the score a DCMA certification?

No. It is a transparent PlanProof quality indicator informed by widely used schedule-review principles. It is not a contractual certification or a substitute for an owner-specific specification.

Can PlanProof replace a planner's judgement?

No. It accelerates evidence gathering and prioritisation. Contract requirements, accepted exceptions, project context and professional judgement remain essential.

Your schedule stays yours. The raw XER is processed in memory and discarded after analysis. Reports are retained only when you choose the signed-in save workflow.
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