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Technologies · September 2026

Which UI frameworks is readiest for AI agents?

18 measured, averaging 20.9% against 21.0% for the web overall. Provide pre-built components to build user interfaces

Every one of them, best first

How to read these figures

The colour says what a bar IS, not how it scores: the accent is the one this page is about, grey is everything it is compared with, and the hollow bar is the web overall — the ruler, not a rival. Whether a figure is above or below the rest of the web is in the number and in the arrow beside it.

Every figure here comes from a sample, not from counting every site — so it carries a margin: how much it could move if we had happened to sample different pages. A figure measured on a thousand pages has a wide margin; one measured on a hundred thousand has a narrow one. It matters for one thing: two figures that differ by less than the wider of their margins are not one above the other, they are tied. That is why nothing here has a position number.

Every technology in this category the census can publish a figure for, including the ones above. A technology is here when it has all four dimensions and enough sample to publish; a technology that belongs to two categories is in both.

TechnologyAWCSMonth by month
Base UI

Base UI

Sample
n=152
Coverage
100.0%
Margin
±4.30
The web overall
21.0%

Two figures closer together than ±4.30 are tied, not ranked.

Base UI scores 43.8%43.8%
—
Radix UI

Radix UI

Sample
n=3,080
Coverage
97.3%
Margin
±0.95
The web overall
21.0%

Two figures closer together than ±0.95 are tied, not ranked.

Radix UI scores 30.4%30.4%
Radix UI: 5 months, up▲ +2.0
shadcn/ui

shadcn/ui

Sample
n=2,067
Coverage
96.7%
Margin
±1.17
The web overall
21.0%

Two figures closer together than ±1.17 are tied, not ranked.

shadcn/ui scores 29.8%29.8%
shadcn/ui: 5 months, up▲ +1.4
Tailwind CSS

Tailwind CSS

Sample
n=11,261
Coverage
97.1%
Margin
±0.50
The web overall
21.0%

Two figures closer together than ±0.50 are tied, not ranked.

Tailwind CSS scores 27.9%27.9%
Tailwind CSS: 5 months, up▲ +2.4
Vuetify

Vuetify

Sample
n=313
Coverage
94.8%
Margin
±3.00
The web overall
21.0%

Two figures closer together than ±3.00 are tied, not ranked.

Vuetify scores 27.3%27.3%
Vuetify: 5 months, up▲ +9.3
SvelteKit

SvelteKit

Sample
n=162
Coverage
98.2%
Margin
±4.16
The web overall
21.0%

Two figures closer together than ±4.16 are tied, not ranked.

SvelteKit scores 25.8%25.8%
SvelteKit: 5 months, no significant change= −2.8
Chakra UI

Chakra UI

Sample
n=131
Coverage
94.9%
Margin
±4.63
The web overall
21.0%

Two figures closer together than ±4.63 are tied, not ranked.

Chakra UI scores 23.8%23.8%
Chakra UI: 4 months, no significant change= −1.1
MUI

MUI

Sample
n=1,015
Coverage
95.2%
Margin
±1.66
The web overall
21.0%

Two figures closer together than ±1.66 are tied, not ranked.

MUI scores 22.9%22.9%
MUI: 5 months, no significant change= −0.7
Ant Design

Ant Design

Sample
n=275
Coverage
89.0%
Margin
±3.20
The web overall
21.0%

Two figures closer together than ±3.20 are tied, not ranked.

Ant Design scores 19.4%19.4%
Ant Design: 5 months, no significant change= −0.4
Headless UI

Headless UI

Sample
n=273
Coverage
97.9%
Margin
±3.21
The web overall
21.0%

Two figures closer together than ±3.21 are tied, not ranked.

Headless UI scores 17.9%17.9%
Headless UI: 5 months, up▲ +4.3
Bootstrap

Bootstrap

Sample
n=38,760
Coverage
95.8%
Margin
±0.27
The web overall
21.0%

Two figures closer together than ±0.27 are tied, not ranked.

Bootstrap scores 17.4%17.4%
Bootstrap: 5 months, up▲ +0.6
Kendo UI

Kendo UI

Sample
n=197
Coverage
86.0%
Margin
±3.78
The web overall
21.0%

Two figures closer together than ±3.78 are tied, not ranked.

Kendo UI scores 16.2%16.2%
Kendo UI: 5 months, up▲ +3.8
UIKit

UIKit

Sample
n=1,381
Coverage
95.9%
Margin
±1.43
The web overall
21.0%

Two figures closer together than ±1.43 are tied, not ranked.

UIKit scores 15.3%15.3%
UIKit: 5 months, up▲ +2.4
Element UI

Element UI

Sample
n=1,091
Coverage
96.4%
Margin
±1.60
The web overall
21.0%

Two figures closer together than ±1.60 are tied, not ranked.

Element UI scores 14.6%14.6%
Element UI: 5 months, no significant change= −0.7
Material Design Lite

Material Design Lite

Sample
n=541
Coverage
94.6%
Margin
±2.28
The web overall
21.0%

Two figures closer together than ±2.28 are tied, not ranked.

Material Design Lite scores 13.5%13.5%
Material Design Lite: 5 months, up▲ +2.8
ZURB Foundation

ZURB Foundation

Sample
n=2,074
Coverage
95.6%
Margin
±1.16
The web overall
21.0%

Two figures closer together than ±1.16 are tied, not ranked.

ZURB Foundation scores 10.7%10.7%
ZURB Foundation: 5 months, down▼ −1.3
Animate.css

Animate.css

Sample
n=5,585
Coverage
94.7%
Margin
±0.71
The web overall
21.0%

Two figures closer together than ±0.71 are tied, not ranked.

Animate.css scores 9.8%9.8%
Animate.css: 5 months, no significant change= +0.2
CivicTheme

CivicTheme

Sample
n=228
Coverage
96.2%
Margin
±3.51
The web overall
21.0%

Two figures closer together than ±3.51 are tied, not ranked.

CivicTheme scores 9.8%9.8%
CivicTheme: 5 months, no significant change= +0.1