// Design Tools
Free UI Design
Analyzer
Free website UI analyzer for instant UI analysis. Upload any screenshot and get a scored design analyzer report across 7 criteria: color, spacing, alignment, hierarchy, and typography. No login.
Good design gets better with the right feedback.
Drop your design here to get started · JPG, PNG, WebP · max 10MB
// Overview
What is the UI Design Analyzer?
The UI Design Analyzer is a free browser-based tool that reviews website, mobile app, dashboard and poster screenshots. It scores seven visual-design areas: colour, spacing, alignment, consistency, hierarchy, typography and corner rounding. No registration is required.
- Price
- Free
- Signup required
- No
- Supported formats
- JPG, PNG and WebP
- Maximum file size
- 10MB
- Analysis modes
- Website, mobile, dashboard and poster
- Results
- Overall score, category scores and improvement recommendations
// How It Works
What the design analyzer checks
Each free design analysis scores your UI or UX across 7 weighted criteria: color, spacing, alignment, hierarchy, typography, and more.
Color Usage
15% weightEvaluates palette harmony, WCAG contrast ratios, and whether colors are over-used or under-used across the design.
Spacing
18% weightChecks padding, margin consistency, and breathing room between elements. Tight spacing is one of the most common UI mistakes.
Alignment
18% weightDetects misaligned elements, off-grid layouts, and inconsistent edge margins that break visual order.
Consistency
15% weightMeasures whether corner radii, font sizes, and spacing values follow a consistent system throughout.
Hierarchy
14% weightAssesses whether the design clearly guides the eye. Primary, secondary, and tertiary information should each have distinct visual weight.
Typography
12% weightLooks at font-size variety, line-height, and whether text scales are logical (e.g., a proper heading/body ratio).
Corner Rounding
8% weightChecks that border-radius values are consistent and appropriate for the design style. Mixing sharp and pill shapes reads as unpolished.
// Transparency
How the UI Analyzer calculates scores
An honest breakdown of what the tool measures, what it can't judge, and how your data is handled.
What signals are evaluated
Concrete visual signals read from the screenshot itself: text-to-background contrast, spacing and padding consistency, grid alignment, border-radius consistency across components, typography scale, and which element draws the eye first.
How the seven categories are weighted
Color, spacing, alignment, consistency, hierarchy, typography, and corner rounding are each scored 0–100, then combined into one weighted total. For web UI, spacing and alignment carry the most weight (18% each); color and consistency follow at 15%.
Why modes use different weights
Different formats succeed on different signals. A dashboard is judged on whether its grid holds up under real data, so alignment and consistency are weighted heavily. A poster or social graphic is judged on whether it grabs attention in seconds, so color and hierarchy are weighted heavily instead.
What the tool can identify reliably
Objective, measurable problems: low text contrast, inconsistent spacing or corner radii, misaligned elements, and unclear visual hierarchy. These are the kind of issues a design QA pass would catch.
What it cannot judge
Brand personality, emotional tone, copywriting quality, and real usability with actual users. It only sees a static screenshot, so it can't test interactive behaviour, animations, or accessibility beyond visual contrast.
Whether AI is used
Yes. Each screenshot is analyzed by an AI vision model in two passes. The first pass writes out everything it observes in the image, and the second pass scores that written description against the criteria above. This keeps scoring grounded in what's actually visible rather than a single guess.
Whether uploaded images are retained
Yes. Uploaded images are stored, not deleted after analysis. Each image is tied to your result's shareable link and thumbnail, so the report keeps working when you share it. Images are never sold, used to train models, or shared with third parties.
How long thumbnails remain available
Indefinitely, for as long as your result page exists. There is currently no automatic expiry on shared reports.
// Examples
See the analyzer in action
Three walkthroughs showing what the analyzer catches across different formats. These are illustrative examples, so the screenshots shown are placeholders.
Example 1: Website landing page analysis
This landing page came in with a strong headline and clean typography, but the analyzer's two-pass review caught three structural issues within seconds. The alignment check flagged inconsistent left-edge margins between the hero section and the feature cards below it, since the cards sat roughly 12px off-grid from the navigation. The spacing check found the primary CTA button had only 8px of internal padding, cramped enough that a real designer would flag it in review. And the hierarchy check noticed the secondary “Learn more” link was nearly the same visual weight as the primary “Get Started” button, which muddied which action mattered more.
The original scored 58 out of 100, a C-grade result with foundational issues worth addressing before shipping. After applying the fixes the analyzer recommended, the same layout scored 89 out of 100 on re-analysis, an A-grade result. Each issue was a measurable, describable problem: a specific element, a specific gap in pixels, and a specific fix.
Feature cards: ~12px off the nav's left edge → align to the same grid
Primary CTA button: 8px padding, cramped → increase to 16px
Secondary link: same visual weight as CTA → reduce size so the CTA stands out
Example 2: Mobile app screen analysis
Mobile screens fail for different reasons than desktop layouts, so the analyzer applies mobile-specific weighting when this mode is selected. It uses tighter tolerances for touch-target spacing and puts a heavier emphasis on whether the primary action is obvious on a small screen.
In this example screen, the analyzer checked whether interactive elements like list items, icon buttons, and the bottom navigation bar met the 44×44px minimum touch target most mobile guidelines recommend, and whether there was enough gap between adjacent tappable elements to prevent mis-taps. It also reviewed typography at arm's-length readability: body text below roughly 14px gets flagged, since that's the threshold where mobile reading comfort drops off. Hierarchy on mobile is judged differently too, since with less screen real estate the primary action needs to win the eye immediately, without competing icons or oversized secondary buttons pulling attention away from it.
This screen scored 82 out of 100, a solid B-plus result, with the write-up calling out one touch target that ran slightly under the recommended size and a caption that could stand to be a size larger.
Example 3: Dashboard analysis
Dashboards live or die on density, meaning how much information fits on screen without the layout collapsing into noise. When Dashboard mode is selected, the analyzer shifts its weighting toward alignment and consistency, since a dashboard's credibility depends on whether every widget, chart, and metric card sits on the same underlying grid.
For this example, the analyzer checked whether metric cards were sized and spaced consistently across rows, whether chart containers shared the same border-radius and padding, and whether axis labels and data values lined up predictably from one panel to the next. It also assessed information density, meaning whether panels had enough breathing room to stay scannable once real data replaced placeholder numbers, and color consistency, since status colors like red for alerts and green for healthy metrics need to mean the same thing everywhere on the screen.
This dashboard scored 85 out of 100, with the top improvement flagging one row of metric cards that used a slightly different corner radius than the rest.
// About the Creator
Nitin Monga
I've spent years moving between design tools and code editors, building brands, interfaces, and full products from the ground up as a graphic designer and full-stack developer. Somewhere along the way I got tired of waiting on a second opinion just to catch the small stuff: a misaligned button, cramped spacing, a headline that doesn't stand out. So I built the UI Design Analyzer, the fast, structured first pass I wished I had on every early design review.
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// FAQ
Frequently asked questions
Is the UI Design Analyzer completely free?
Yes, 100% free with no account required. Upload your screenshot, get your score, and share it. There are no hidden tiers or paywalls.
What file formats are supported?
JPG, PNG, and WebP files up to 10MB. For best results use a full-page or component screenshot at 1x or 2x resolution, and avoid heavily compressed thumbnails.
How is the overall score calculated?
Seven criteria are scored independently: color, spacing, alignment, consistency, hierarchy, typography, and corner rounding. They're then blended using mode-specific weights, so a dashboard layout puts more weight on alignment and consistency than a poster design would.
What is a good UI design score?
90–100 is S-grade (publication ready). 80–89 is A-grade (professional quality). 70–79 is B-grade (good with minor fixes). Below 60 means there are foundational issues worth addressing before shipping.
What is the difference between the four analysis modes?
Each mode adjusts the scoring weights for what matters most in that context. Web UI weights spacing and alignment heavily. Mobile emphasises touch target spacing. Poster prioritises color and hierarchy. Dashboard focuses on alignment and information density.
Can I analyze a mobile app screenshot?
Absolutely. Select the Mobile mode before uploading, and the analyzer will apply weights tuned for mobile UI patterns, including tighter spacing tolerances and touch-target hierarchy.
How accurate is the analysis compared to a human designer?
The analyzer evaluates common visual-design signals such as contrast, spacing, alignment, hierarchy and consistency. It is intended as a structured second opinion, not a replacement for professional user research or human design judgement.
Does this work as a UX analyzer too, not just for UI?
Yes. While it's called a UI analyzer, the criteria it evaluates, hierarchy, spacing, alignment, and information flow, are core UX signals as well. It works as a combined UI/UX design analyzer tool, scoring the visual design qualities that directly impact usability. If your design scores low on hierarchy or spacing, that's a UX problem as much as a visual one.
// Changelog