Multi-standard engineering document review
Find your FMEA audit risks in 60 seconds
Specwarden reviews your DFMEA and PFMEA spreadsheets in seconds. Supplier-blame patterns, missing rationale, control method confusion. Built for design, manufacturing, and quality engineers at Tier-2 and Tier-3 suppliers.
How it works
Upload your DFMEA
Drop in your spreadsheet — .xlsx, .xls, .csv, or .docx. Specwarden detects AIAG-RPN or AIAG-VDA format automatically. No configuration.
Review runs in under 60 seconds
7 deterministic rule checks run first, then Claude Sonnet reads every row for supplier-blame causes, vague language, and missing rationale.
Get a report you can act on
Download a PDF or Word report with every finding ranked by severity and a specific fix recommendation. Ready to attach to your design package.
What Specwarden catches
Tier-2 supplier-blame detection
The most common DFMEA audit fail: a cause that reads "supplier delivered out-of-spec parts" instead of naming the design-specification gap. Specwarden flags it every time — even on rows where we didn't specifically look.
AIAG-RPN and AIAG-VDA out of the box
Mixed-format inputs auto-detected. Works on the legacy 10-column AIAG sheet and the new AIAG-VDA 16-column Handbook layout — no configuration needed.
From upload to findings in under 60 seconds
200-row review cost: 31¢. No queue. No batch job. No 24-hour SLA. Results stream in as findings are confirmed — close the tab when you're done.
See a real review
A complete DFMEA, reviewed. Here is what Specwarden flagged on it — and what the corrected rows look like.
Failure Mode
Bearing bore ID oversized — bearing spins in housing
Failure Effect
Premature bearing wear, gearbox noise, warranty return
Cause
Bearing supplier delivers housing bore machined out of tolerance
The cause describes a supplier execution failure, not a design parameter. AIAG-VDA §2.4 requires causes within design control.
Also: 7 × 4 × 6 = 168, not 96 — RPN is understated
Failure Mode
Bearing bore ID oversized — bearing spins in housing
Failure Effect
Premature bearing wear, gearbox noise, warranty return
Cause
Gearbox housing bore ID tolerance ±0.01 mm not specified on drawing
Recommended Action
Add bore tolerance call-out to drawing. Owner: Design Engineer. Due: 2026-06-15.
Illustrative example — gearbox-housing-dfmea.xlsx, Row 14
Sample outputs
Download a complete sample DFMEA review
A full Specwarden review of an illustrative 38-row DFMEA: the PDF report with every finding, plus the reviewed copy — the original spreadsheet returned with cells highlighted, threaded comments, and RPN errors auto-corrected in place.
This is what you get on your own file — in under 60 seconds. Join the waitlist →
Illustrative sample — not real customer data
Working in PFMEA? See the PFMEA sample report and starter template →
Why Specwarden
$7
vs $200–800 per manual review
PAYG covers a 200-row DFMEA for $7 flat. Senior reviewer time on the same file typically runs 2–8 hours at $100–200/hr engineer time.
60s
from upload to first finding
No queue, no batch job, no 24-hour turnaround. Findings stream in as they're confirmed. The entire review is done before most meetings start.
100%
verified-correct rate on spontaneous catches
In our eval suite, every Tier-2 supplier-blame pattern Specwarden flagged on a row where we had not planted it was confirmed correct by a senior manufacturing quality engineer — zero false positives.
Your data stays yours
Three commitments. All verifiable.
0
Disk writes
Your file is parsed in RAM during one HTTP request, then garbage-collected. Nothing touches disk or S3.
0
Server copies of findings
Findings live in your browser's sessionStorage. Close the tab and they're gone. We keep only counts (e.g. 3 majors, 1 minor).
0
Training rights on your data
We pay for Anthropic's commercial API tier. Its terms prohibit training on customer inputs — contract, not a verbal promise.
Built for engineering teams reviewing high-stakes technical documents.
Workflow proof
Reviews engineering documents against risk and compliance criteria
Use-case proof
Designed for FMEA, specs, quality checks, and design review workflows
Beta proof
Private beta feedback from technical reviewers and operators
How Specwarden compares
| Category | Status quo (Excel + senior reviewer) | PPAP suite (Big SaaS) | Specwarden |
|---|---|---|---|
| Cost per review | $200–800 (engineer time) | $30K+/year subscription | $7–29 |
| Time to first finding | Hours | 2–4 weeks deploy | < 60 seconds |
| DFMEA + PFMEA review | Manual (separate reviews) | DFMEA only (usually) | ✓ Both supported |
| Tier-2 supplier-blame catch | Senior reviewer only | Not modeled | ✓ Built-in |
| Self-serve | Yes | No (sales-led) | ✓ Yes |
| Designed for SMB suppliers | Yes (manual) | No (Tier-1 OEM focus) | ✓ Yes |
Try Specwarden on one of your DFMEAs — free.
Free tier covers up to 30 rows with 5 visible findings. No credit card required.
Join waitlist