UX Audit Toolkit Nielsen

Sistematik UX audit playbook

An evidence-based UX audit playbook that combines Nielsen's 10 heuristics, Krug's 3-click rule, Fitts's Law, and Hick's Law into a single 0-100 scoring rubric. It runs automated Playwright and axe-core checks, attaches a screenshot and DOM selector to every finding, and produces an objective severity report designers can act on instead of arguing over.

$15 one-time
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Prices include 20% VAT. · Forged on real agency work · one-time, no lock-in

  • Type Skill
  • Category Design & UX
  • Delivery Email · instant
  • License One-time
Run preview
forgehouse, ux-audit-toolkit-nielsen

Inside the run · no black box

See the actual work before you buy it.

Severity here is a formula, frequency times impact times persistence, never an opinion. Ten steps carry a site from stratified sitemap sample to a report whose catastrophic findings block release:

  1. Sets the scope first: single page or full site with a stratified 30-URL sample from the sitemap (home, category, product, checkout, 404), then audits mobile 375px and desktop viewports separately
  2. Runs the Playwright plus axe-core script: measures LCP, INP and CLS, scans every interactive element for Fitts violations (targets under 44px rated by size, under 24px is catastrophic) and counts every menu and filter against Hick's 7-option threshold
  3. Maps Core Web Vitals onto Nielsen heuristics: a slow LCP becomes a visibility-of-status violation, high CLS an error-prevention violation, so performance and usability land in one rubric instead of two reports
  4. Computes severity with a formula, not opinion: frequency times impact times persistence with a visibility multiplier yields the 0-4 rating, so the debate with designers moves to the measurements, never the verdict
  5. Measures Krug click depth for the top CTAs from the home page (more than 3 clicks flags, 5 or more is major) and fills the gaps automation cannot see with the 10-heuristic manual checklist
  6. Produces the severity report: catastrophic findings block release, every finding ships with a screenshot, a DOM selector and a concrete fix suggestion routed to the right follow-up skill
Use cases · what happens when you plug it in

One power source. 6 lines out.

ux-audit-toolkit-nielsen · core

core active · 6 lines

  1. Auditing client sites, landing pages, and SaaS apps

    ✓ auditing client sites, l…
  2. Gathering objective evidence before designer feedback

    ✓ gathering objective evid…
  3. Heuristic scan before shipping a new feature

    ✓ heuristic scan before sh…
  4. Root-cause analysis for low-conversion complaints

    ✓ root-cause analysis for
  5. Combined accessibility and usability reporting

    ✓ combined accessibility and
  6. Detecting deceptive dark patterns and their legal risk

    ✓ detecting deceptive dark
Benefits · what you walk away with

Yours to keep.

Drag time forward. Watch what stays.

Forever

That's what owning means.

The rented stack

ai writing tool: subscription

expired · access lost

analytics suite: subscription

expired · access lost

design platform: subscription

expired · access lost

(nothing left)

Your forge

  1. Replace subjective opinion with a repeatable severity formula

    license: perpetual
  2. Save thousands in UX consultant hours per project

    license: perpetual
  3. Win designer buy-in with screenshots, DOM selectors, and fix suggestions

    license: perpetual
  4. Prioritize fixes correctly with a 0-4 severity rating tied to frequency and impact

    license: perpetual

subscriptions expire · deeds don't

What's included · the full manifest

Everything in the box.

Pick a piece up. Watch it work.

Nielsen 10-heuristic checklist with automated and manual checks

part 01 of 06 · in the box

6 parts · one working system · ships instantly by email

From the field · a real case

This wasn’t written at a desk.

The problem

The fix

The result

Who it's for

This wasn't forged for everyone.

  • Not for you if you'd rather rent a tool than own one.
  • Not for you if you want someone else to run your stack.
  • Not for you if you're happy guessing.
Still here? Good.

UX designers, product teams, and agencies who need objective, evidence-backed usability audits instead of subjective feedback.

then this was forged for you.

Works with

Universal by design: these run in any AI. Delivered in the open Agent Skills + MCP format (native in Claude); ChatGPT, Gemini, Cursor and Copilot adapt the same files their own way.

  • Claude Native format
  • ChatGPT Adapts via open standards
  • Gemini Adapts via open standards
  • Cursor Adapts via open standards
  • Copilot Adapts via open standards
Questions · still in the air

Catch what's on your mind.

the air is clear. nothing between you and the forge.
catch a spark: the forge will answer

  1. We don't have a UX researcher on the team, can we still run a credible audit?

    That's the point of the toolkit. The Nielsen 10-heuristic checklist splits into automated checks the Playwright and axe-core runner handles and manual ones with clear criteria, so a developer or PM can produce an evidence-backed report without a research background.

  2. How is the scoring objective rather than just another opinion?

    Every finding carries a screenshot and a DOM selector, and severity is computed as frequency times impact times persistence on a 0-4 scale that rolls up into the 0-100 rubric. Two people running the same audit land on the same numbers, which is what ends the design debate.

  3. Will it redesign the pages it flags?

    No. It finds, proves, and prioritizes usability problems and attaches fix suggestions, but producing the new design is a separate effort. It also detects dark patterns and flags their legal risk without rewriting your flows.

  4. How is it delivered?

    By email right after purchase: ready to run, downloaded instantly, no setup wait.

  5. One-time or subscription?

    A one-time purchase; no subscription or hidden fees. VAT (20%) is included.

  6. Can I get a refund?

    As a digital product, it can’t be refunded once downloaded. That’s why we show exactly what’s inside and who it’s for, right here.