Free AI UX audit tool: check any screen or URL for usability, accessibility and hierarchy

Fleck's UX audit is a free AI design review: add a screen, a screenshot or a live URL and get prioritised usability, accessibility and visual hierarchy findings in about a minute, each one tied to the part of the interface it refers to.

How the UX audit works

1. Add a screen, or a URL
Upload a screenshot or design image, paste a public website URL, or audit a screen you generated in Fleck. A free account is all you need to try it.
2. Fleck reviews it
Usability heuristics, visual hierarchy, accessibility, cognitive load, platform conventions and the empty, loading and error states designs usually skip.
3. Fix by severity
Findings arrive pinned to the part of the design they refer to, each with a severity and a concrete fix. Export a PDF or share a read-only link.

What the audit checks

Contrast, text legibility and colour-only meaning
Touch and click target size and spacing
Visual hierarchy and scan order
Label clarity, form friction and error recovery
Missing empty, loading, partial and error states
Platform conventions for web, iOS and Android

Audit types

UX review: usability heuristics, hierarchy and clarity
Design critique: visual design and layout feedback
Compare: two designs or two versions side by side
Accessibility audit: contrast, targets, labels and WCAG checks
IA review: navigation, labelling and structure
User flow audit: friction and drop-off across a flow
Predictive heatmap: where attention is likely to land

Who it is for

Product designers checking work before review or handoff
Founders testing a landing page, onboarding or MVP before launch
Product managers who need specific, prioritised UX issues for the backlog

What you get back

An overall score plus category scores for usability, accessibility, visual design and content
Findings pinned to the exact part of the screen they refer to
A severity on every finding, with the issue, the user impact and a concrete fix
The heuristic or WCAG criterion each finding maps to
A PDF export you can hand to a team, and a read-only share link
A baseline score you can re-measure after the fixes ship

An example finding

High

Empty state shows zeros instead of guidance

Issue: First login renders every chart at $0, so the dashboard feels broken.
Impact: Trial-to-paid conversion drops sharply at this step.
Fix: Show a first-run card with three next steps: connect a source, invite a teammate, view a sample dashboard.

Read the full SaaS dashboard audit report

UX audit questions

What is a UX audit?

A structured review of an interface against usability heuristics, accessibility standards and visual hierarchy principles, returning specific problems with a severity so a team knows what to fix first.

How long does a Fleck audit take?

A single screen usually comes back in under two minutes. A full audit across a flow takes longer because each screen is reviewed separately.

Is it free?

Yes, you can start free. Audits are charged in credits: 18 credits for a single audit and 93 for a full audit. The Free plan includes 100 one-time starter credits after you verify a card (nothing is charged), and shows the score, summary and first findings before upgrading for the full report.

Can it audit a live website?

Yes. Paste a public URL and Fleck captures the page before reviewing it. Pages behind a login or bot protection cannot be captured, and nothing is charged when a capture fails.

What language are the findings in?

Whatever language the Fleck interface is set to, regardless of the language of the design being audited. Change it before running the audit.