Content

Type

Input

qr_code_scannerScan QR

qr_code_scanner Drop image or click to upload PNG, JPG, or paste from clipboard

Generated as you type. Nothing leaves this browser.

Saved styles

Save a style to reuse it here.

Holi QR · generate, style, export · no account

A QR that stays yours.

Paste a link or pick a type. The code is generated and verified in this browser; images you add are never uploaded.

or choose

Local by default

2048 × 2048 px · PNG · no frame ·

Style Enter some content to start styling it.

Ink (modules)

Paper (non-modules)

Quick Presets

Gradients

Type

Color 2

Angle

Body Shape

Eye Frame

Eyeball

Quick Styles

Ink (modules)

Liquid Finish Melts shapes together

Noise / Grain Adds texture to your QR

upload_file

Drop image here

or click to browse

Show text frame

Frame text

Frame color

Text color

The frame is included in PNG, JPG, WebP, PDF and SVG exports.

Error Correction

Mask Pattern

Shortcuts: Ctrl+S download · Ctrl+Shift+C copy · 1–6 tabs

Current v1.0.2

Versions

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Contact

v1.0.2 2026-09-04

Fixed the live preview and the PNG, JPG, WebP and PDF exports being vertically mirrored: the finder eyes now sit top-left, top-right and bottom-left exactly as in the SVG, and the Water modules, Heart eye and Leaf frame render the way their Shapes tiles show them
The readability check now waits for the selected shapes before capturing, so its verdict always refers to the current style
Scan mode can be closed again (button or Escape), returns to where you were, and on phones scrolls straight to the image drop zone
The scanner keeps its translated copy in every state, explains what to do on the stage, and tries the browser's native detector before the local Rust decoder for camera photos

v1.0.1 2026-09-04

Kept the Content and Style collapse controls independent and synchronized their accessible collapse and expand labels
Removed the unintended mobile gap caused by the decorative moth participating in the workspace layout
Centered the mobile tool tabs while preserving horizontal scrolling for narrower screens and longer translations

v1.0.0 2026-09-04

Rebuilt QR as a workspace: content rail, live stage, and docked style tabs (Colors, Shapes, Effects, Image, Frame, Advanced) with a bottom sheet on phones
Adopted the warm Holi editorial palette and Noto Sans; light, dark, and transparent preview backgrounds plus zoom
Added saved styles (browser-local) with JSON import and export, and style links that travel in the URL fragment only
Added an optional text frame ("Scan me") included in PNG, JPG, WebP, PDF, and SVG exports
Redrew the Capsule, Chain, Water, Pixel modules, the Diamond and Clover eye frames, and the Grid, Star, and Diamond eye balls so each matches its name and keeps the finder ratio scannable
Shape tiles now preview the exact renderer geometry; the Diamond frame warns which eye balls stay scannable
Keyboard shortcuts: Ctrl+S download, Ctrl+Shift+C copy, 1–6 switch tabs
Removed the floating draggable panels and the legacy sidebar

v0.9.1 2026-09-02

Added the transparent moth sketch as QR's quiet product identity
Moved Papers discovery and canonical ownership to Holi Labs
Kept legacy QR paper URLs as redirects to the matching localized Labs reading

v0.9.0 2026-09-02

Removed the unstable outer glow from the shared product dock
Localized QR privacy facts and every shared product control in all seven supported languages
Published the complete engineering-paper index and article in all seven supported languages

v0.8.0 2026-09-02

Fixed brand icons, Generate, Shapes, Colors, Advanced, selectors, and export menus in explicit light mode
Removed system-theme overrides that could make QR controls unreadable after choosing a Holi theme
Made the product dock and shared cards inherit the active QR palette

v0.7.0 2026-09-02

Unified Configuration, Versions, and Privacy in the shared Holi product dock
Added local theme and language preferences plus QR navigation inside Configuration
Placed donations, support, and the visible Shadow Log inside Versions

v0.6.1 2026-09-02

Separated privacy and Version Log into matching floating controls
Moved privacy details into a dedicated drawer and removed the full-width footer bar

v0.6.0 2026-09-02

Added a visible privacy summary across the editor and engineering pages
Clarified that QR content and selected images stay on-device while Cloudflare can observe connection metadata
Synchronized version, Shadow Log, donation, and support surfaces across every QR page

v0.5.0 2026-05-31

Reworked BG, Paper, Ink, and Logo image handling with clearer default sizing and layer proportions
Paper now expands around the ink area, while Background uses a larger outer frame for more predictable composition
Added image thumbnails and quick remove controls for BG, Paper, Ink, and Logo slots
Added Logo fit controls so placed images can fill, cover, or contain the logo area
Added PNG, JPEG, WEBP, SVG, and PDF download options with selectable export sizes
Improved QR style presets, liquid/blur filters, color controls, and gradient behavior
Rebuilt brand logos from deterministic SVG path data with high-resolution WebGL textures and clean contain/reset behavior
Fixed BG visibility, logo container toggling, conic gradient seams, and brand logo preview pixelation
Fixed styled QR copy/export so the generated PNG preserves the visible image, shapes, layers, and WebGL effects
Added a permission-safe copy fallback that shows the generated PNG instead of copying plain text when the browser blocks image clipboard writes
Cleaned project documentation and LLM-facing context files for clearer handoff and project missions

v0.4.0 2026-03-11

Scan Tool: Uploading an image to the Scanner now intelligently displays a preview of the image above the decoded text
Improved rendering performance by optimizing WASM payload configuration (wasm-opt) and allocation strategies
Now uses the modern native BarcodeDetector API for scanning, falling back to a performant WASM-based ZXing decoder
UX: Added smart Z-Index management so active floating panels naturally come to the foreground on click
UX: Uploading a Custom Background image now automatically conceals the Paper layer to guarantee immediate visibility
UX: Advanced Mask Patterns are now labeled with human-readable descriptions rather than mathematical notation
Editor: Removed the redundant 'Layers' panel entirely. Transparency and visibility layers are now fully managed natively within the 'Image' panel
Removed obsolete wee_alloc from WASM crates in favor of the default performant memory allocator
Removed legacy jsqr dependency from the frontend, dropping main-thread execution weight

v0.3.0 2026-02-08

Refined body/eye shapes and improved readability behavior
Toolbar UX upgrades: one-tap export flow, cleaner menu interactions, and better feedback
Added SEO refresh and llms.txt support for better discoverability

v0.2.1 2026-01-22

Implemented strict 5-layer renderer (Card UI base + BG, Paper, Ink, Logo)
Image slots now support BG/Paper/Ink/Logo with transforms + opacity
Rebuilt shapes system (10 body + 10 eye frame + 10 eye ball) with improved icons
Added 'alive' body shapes with neighbor/corner-aware chaining and tuned readability
Fixed verifier: now re-checks on any visual change (including shapes)
Fixed QR scan tool showing '[object Promise]' and improved type dropdown behavior

v0.2.0 2026-01-17

i18n migration + English/Spanish support
SVG export is now real vector SVG (not a PNG embedded in SVG)
Unified wasm-qr-svg loading with a single dynamic loader (removed mixed import warning)
Added JPEG download option and improved export pipeline consistency
Fixed Image panel: logo/background selection no longer mixes images; background + logo can coexist
Improved perceived performance with idle-time WASM prefetch on first user intent

v0.1.1 2026-01-12

Fixed WebGL shader compilation errors
Resolved 'Outdated Optimize Dep' issues

v0.1.0 2026-01-12

Profound WASM optimization (reduced to ~30kb)
Fixed white background issue
Removed legacy jsPDF dependency
Theme support implementation

Privacy summary

QR content and images are processed on your device. Cloudflare can observe your IP and access time.

Processing: Generation, styling, scanning, and export run in this browser.
Files: Images you choose are not uploaded to Holi to create the QR code.
Persistence: Preferences may remain locally; your browser controls exported downloads.
Style links: A style link carries the style in the URL fragment (#), which browsers never send to servers; the QR content is not included.
Hosting: Cloudflare may process IP, time, requested path, traffic volume, and routing data.