# QR Code A React component in [Beamline](https://beamline.io/)'s [Content & display](https://beamline.io/components/display) category. Live demo: https://beamline.io/components/qr-code A scannable code set as gradient dots with rounded finder rings and an optional centre mark; a new value ripples out from the centre. ## Use it for - A deposit address or wallet a person scans with a phone. - Pairing a device or signing in on mobile from a desktop screen. - A share or invite link meant to be opened on another device. ## Not for - Decoration: a code nobody is meant to scan. - Long payloads (> ~300 characters): the dots get too small to scan; link to them instead. ## Anatomy - plate - dots (data modules) - finder rings (three corners) - centre mark (optional) ## Variants - **tone**: auto, light ## States - static - value changed (ripple) - with centre mark (high error correction) ## Keyboard - Not focusable; pair it with a copy button for the value. ## Motion On a value change each dot grows from 20% to full size with no overshoot (--pui-duration-spring on --pui-ease-out-strong), delayed by its distance from the centre (--pui-stagger-char per module, a cascade of about 0.25 s), so the new code spreads outward. Never on first paint. Reduced motion: the new code appears at once. ## Props | Prop | Type | Default | Description | | --- | --- | --- | --- | | `style / ref` | `CSSProperties / native Ref` | — | native HTMLDivElement | | `classNames` | `QrCodeClassNames` | — | | ## Dependencies `qrcode-generator` ## Import ```tsx import { QrCode } from "@/components/qr-code/qr-code"; ``` ## Get it QR Code is part of Beamline: 190 React components and screens your coding agent (Claude Code, Codex, Cursor or any MCP client) installs into your app through Beamline's MCP server, as a ready-built package or as plain React source you can change. $49 one payment (regular $200), no subscription, a year of updates, one licence for your whole team. [Get Beamline](https://beamline.io/checkout?pack=complete) · [Connect your agent](https://beamline.io/connect) ## More in Content & display - [Advertisement](https://beamline.io/components/advertisement): A sponsor or promo slot that turns through its ads on a hairline that fills; hovering or focusing holds the current ad. - [Avatar](https://beamline.io/components/avatar): A person or account in a small space: a photo, or initials on the hue their name always gets; presence dot; circle for people, square for companies. - [Avatar group](https://beamline.io/components/avatar-group): A team in a small space: overlapping faces that name themselves on hover or focus, and “+N” naming the rest. - [Badge](https://beamline.io/components/badge): A short status, category or count label: six tones, an icon or a status dot, two sizes. - [Code block](https://beamline.io/components/code-block): Code to read and copy: highlighted in the system's colours, numbered, marked lines, long files folded behind “Show all”. - [Comment thread](https://beamline.io/components/comment-thread): A discussion attached to something: replies, reactions, @mentions, editing and deleting your own, resolve that folds the thread. - [File diff](https://beamline.io/components/file-diff): A change to one file as a unified diff: line numbers, tinted lines, only the changed words marked, long unchanged stretches folded; give rows or just… - [Image compare](https://beamline.io/components/image-compare): Two images in one frame with a divider: drag anywhere, or arrow keys on the handle; horizontal or vertical, with captions. - [Item](https://beamline.io/components/item): The generic list row: media, title, description, meta and trailing actions; becomes a link or button when interactive. - [Kbd](https://beamline.io/components/kbd): Keyboard keys as keycaps; `mod` resolves to ⌘ or Ctrl per platform, symbols are spoken as words. - [Lightbox](https://beamline.io/components/lightbox): A full-screen image viewer: a thumbnail grows into it and shrinks back, arrows and ←/→ step through the set, Esc or a downward drag closes it. - [Logo Carousel](https://beamline.io/components/logo-carousel): A wall of logos shown a few at a time: every few seconds the slots turn left to right, each logo leaving upward as the next rises in. - [Marker](https://beamline.io/components/marker): A labelled point in a stream: a status event with an icon between messages, or a label such as "Today" between two hairlines. - [Slot text](https://beamline.io/components/slot-text): Text and numbers that roll into their new value on reels, digit by digit from the right; other characters fade. 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