Pattern library

UI Patterns

A UI pattern library built for coding agents. 40 patterns, each shipping a copy-paste prompt that rebuilds it inside your own codebase — plus a live preview and the source behind it.

A blueprint drawing of interface parts: dialled gauges, dimensioned panels, and a grid of repeated tiles

Every pattern, three ways

01 · Every pattern, three ways

Preview

The pattern running live in an isolated frame, in whichever theme you are reading in.

02

Source

Its markup, styles and behaviour, plus a single runnable file carrying its own palette.

03

Prompt

A written spec that rebuilds the pattern from scratch — including why each decision is the way it is. Paste it into Claude Code, Cursor, or any coding agent.

The prompts are the point. Each one is written to survive being handed to an agent with no other context: it names the surfaces the pattern belongs on, spells out the constraint that makes it work, and calls out the failure it exists to prevent. Nothing here is a dependency you install.

All patterns

40 patterns

Windowed schedule grid

Data display · Added Aug 11, 2026

Rows of resources against a fixed time window, where each block is sized by its overlap with the window rather than by its own duration.

Good for schedule, timeline, grid

  • schedule
  • timeline
  • grid
  • flexbox

Benchmark progress bar

Data display · Added Aug 11, 2026

Places a raw figure on a scale of external benchmarks instead of printing it plain.

Good for progress, benchmarks, css-only

  • progress
  • benchmarks
  • css-only
  • data-viz

Cross-highlight matrix

Data display · Added Aug 11, 2026

A two-axis lookup table with both headers sticky, hover lighting the full row and column at once, and a durable click-to-pin selection for touch.

Good for table, matrix, sticky

  • table
  • matrix
  • sticky
  • accessibility

Left-truncating paths

Data display · Added Aug 11, 2026

Shortens a long path by dropping whole segments from the left, because the tail is what tells two paths apart.

Good for truncation, paths, text-overflow

  • truncation
  • paths
  • text-overflow
  • breadcrumbs
Updated

Shape-mark sequence

Data display · Added Aug 21, 2026

A sequence compressed into a row of small marks whose shape carries the state.

Good for stepper, sparkline, series

  • stepper
  • sparkline
  • series
  • truncation

Linked month bars

Data display · Added Aug 21, 2026

A month-by-month volume timeline built from plain divs where every aggregate row links to the filtered view that produced it.

Good for timeline, drill-down, css-only

  • timeline
  • drill-down
  • css-only
  • data-viz

Glass vial meter

Data display · Added Aug 21, 2026

A vertical potion-vial meter whose liquid fills a wide bulb first and then rises into a narrow neck — all CSS, no images.

Good for meter, skeuomorphic, css-only

  • meter
  • skeuomorphic
  • css-only
  • reduced-motion

Partitioned stage bar

Data display · Added Sep 12, 2026

Progress for work with several possible endings, drawn as a census rather than a fraction.

Good for progress, stacked-bar, batch

  • progress
  • stacked-bar
  • batch
  • legend

Term-by-term derivation

Data display · Added Sep 12, 2026

A computed figure shown with the audit trail behind it — the number is the product and the derivation is the receipt.

Good for explainability, calculator, disclosure

  • explainability
  • calculator
  • disclosure
  • formula
Updated

Plan preview tree

Data display · Added Sep 12, 2026

A dry run shown as a before-and-after tree with counts now, after, and the difference.

Good for dry-run, diff, tree

  • dry-run
  • diff
  • tree
  • preview

Uniform slot shell

Data display · Added Sep 12, 2026

One card shell many independent sources render through, where the shell does the capping.

Good for dashboard, widgets, cards

  • dashboard
  • widgets
  • cards
  • empty-state
Updated

Object-shaped cards

Layout · Added Aug 11, 2026

Where a record stands for a physical thing, the card is drawn as that thing — nine variations in pure gradients.

Good for cards, css-only, gradients

  • cards
  • css-only
  • gradients
  • variations

Adaptive tile mosaic

Layout · Added Aug 11, 2026

A container with no artwork draws one from up to four member tiles, grid tracks following tile count.

Good for css-grid, css-only, no-assets

  • css-grid
  • css-only
  • no-assets
  • cards
Updated

Ground-scrimmed artwork

Layout · Added Aug 11, 2026

Text printed over unreviewed artwork, scrimmed to an alpha that can be written down rather than guessed.

Good for layout, css-only, gradients

  • layout
  • css-only
  • gradients
  • contrast
Updated

Hairline stat strip

Layout · Added Aug 21, 2026

Stat tiles joined by hairlines that are grid gap, not borders.

Good for stats, css-grid, css-only

  • stats
  • css-grid
  • css-only
  • hairline

Annotated transcript

Layout · Added Aug 21, 2026

Conversation bubbles with a speaker-colored spine and a fixed metadata gutter.

Good for conversation, gutter, status-roles

  • conversation
  • gutter
  • status-roles
  • contrast

Cork notice board

Layout · Added Aug 21, 2026

Pinned paper notes on a cork board where every texture is layered CSS gradients.

Good for skeuomorphic, gradients, no-assets

  • skeuomorphic
  • gradients
  • no-assets
  • cards
Updated

Hotspot marker layer

Layout · Added Sep 12, 2026

Markers at percentage coordinates over a fixed-aspect picture, turning into a list when too narrow.

Good for hotspots, pointer-events, aspect-ratio

  • hotspots
  • pointer-events
  • aspect-ratio
  • container-query

Line-art empty states

Layout · Added Sep 12, 2026

Inline drawings for empty surfaces stroked in the inherited text colour.

Good for empty-state, svg, currentcolor

  • empty-state
  • svg
  • currentcolor
  • illustration

Column-flow wall

Layout · Added Sep 12, 2026

Cards flowing down columns instead of across rows, with the reading-order cost stated plainly.

Good for masonry, columns, break-inside

  • masonry
  • columns
  • break-inside
  • reading-order

Scroll edge shadows

Interaction · Added Aug 11, 2026

An inset shadow shown only on the edge that has more content behind it.

Good for scrolling, affordance, lists

  • scrolling
  • affordance
  • lists
  • overflow

Frozen-batch deck

Interaction · Added Aug 11, 2026

A one-card-at-a-time review queue whose batch is snapshotted at mount.

Good for queue, review-flow, animation

  • queue
  • review-flow
  • animation
  • keyboard
Updated

Controls beside the anchor

Interaction · Added Aug 11, 2026

Per-card controls over a fully-linked card without nesting interactive elements in the anchor.

Good for cards, accessibility, keyboard

  • cards
  • accessibility
  • keyboard
  • focus-within
Updated

Pluggable canvas visualizer

Interaction · Added Aug 11, 2026

One canvas, a registry of draw modes, each mode owning its entire frame.

Good for canvas, visualization, registry

  • canvas
  • visualization
  • registry
  • animation
Updated

Roving-grid board

Interaction · Added Aug 21, 2026

A dense grid of state cells that is one tab stop with arrow-key navigation.

Good for keyboard, roving-tabindex, accessibility

  • keyboard
  • roving-tabindex
  • accessibility
  • states

Section rail

Interaction · Added Aug 21, 2026

Sticky vertical rail on wide screens, wrapping tab row on narrow ones, from the same markup.

Good for navigation, toc, responsive

  • navigation
  • toc
  • responsive
  • aria-current

Ledge-press buttons

Interaction · Added Aug 21, 2026

Buttons on a solid ledge shadow that travel down onto it when pressed.

Good for buttons, skeuomorphic, press

  • buttons
  • skeuomorphic
  • press
  • tokens
Updated

Guarded control

Interaction · Added Sep 12, 2026

A blocked control stays focusable, carries the reason as text, and refuses in its handler.

Good for aria-disabled, disabled, preconditions

  • aria-disabled
  • disabled
  • preconditions
  • keyboard
Updated

Polled job card

Interaction · Added Sep 12, 2026

One card for every state a background job passes through.

Good for progress, polling, background-job

  • progress
  • polling
  • background-job
  • indeterminate

Entry-transform motion

Interaction · Added Sep 12, 2026

FLIP-style motion between two rendered states when the old DOM is already gone.

Good for animation, transitions, reflow

  • animation
  • transitions
  • reflow
  • reduced-motion
Updated

Slot-first picker

Interaction · Added Sep 12, 2026

Assignment that starts at the destination slot, then narrows the catalogue.

Good for assignment, picker, aria-pressed

  • assignment
  • picker
  • aria-pressed
  • filtering

Undo toast

Forms · Added Aug 28, 2026

A destructive action with no confirm dialog, held behind a toast and committed when it expires.

Good for undo, toast, destructive

  • undo
  • toast
  • destructive
  • aria-live
New

Blast-radius confirm

Forms · Added Sep 28, 2026

A confirm dialog that names everything a delete cascades and blocks dismissal while it runs.

Good for confirm-dialog, destructive, cascade

  • confirm-dialog
  • destructive
  • cascade
  • dialog-element
Updated

Batch action bar

Forms · Added Aug 28, 2026

A bar that exists only while something is selected, states the count in words, caps at five actions.

Good for selection, bulk-actions, toolbar

  • selection
  • bulk-actions
  • toolbar
  • checkbox

Filtered to zero

Forms · Added Sep 12, 2026

The three empty states a list actually has, written as three different screens.

Good for empty-state, filter, search

  • empty-state
  • filter
  • search
  • zero-results

Parsed query chips

Forms · Added Sep 12, 2026

A search box that echoes back how it read the text as removable chips.

Good for search, query-syntax, chips

  • search
  • query-syntax
  • chips
  • facets

Compound-value picker

Forms · Added Sep 12, 2026

One grouped select whose value carries both the kind and the id.

Good for select, optgroup, polymorphic

  • select
  • optgroup
  • polymorphic
  • forms
Updated

Ground-referenced color

Color · Added Aug 11, 2026

Colors solved against the page's own ground token so they invert correctly between themes.

Good for color, contrast, color-mix

  • color
  • contrast
  • color-mix
  • accessibility
Updated

Single-property color variants

Color · Added Aug 21, 2026

One custom property carries the hue; border, fill, spine and dot derive from it.

Good for color, color-mix, custom-properties

  • color
  • color-mix
  • custom-properties
  • theming
Updated

Controls on an unknown fill

Color · Added Sep 12, 2026

Opaque controls, a gradient-darkened fill, and a two-tone focus ring on a surface whose colour arrives from outside.

Good for contrast, brand-color, focus-ring

  • contrast
  • brand-color
  • focus-ring
  • opacity