# EFPrefix/EFQRCode

A better way to operate QRCode in Swift, support iOS, macOS, watchOS, tvOS, and/or visionOS.

Repository: https://github.com/EFPrefix/EFQRCode
Canonical: https://ross.abutalabs.com/products/efqrcode
Homepage: https://efprefix.github.io/EFQRCode
Language: Swift
License: MIT
License Family: permissive
Topics: swift, ios, qrcode, barcode, barcode-scanner, barcode-generator, barcodes, qrcode-generator, qrcode-scanner, qrcode-reader, qrcodes, generator, recognizer, watchos, hacktoberfest, qr, qr-code, qr-code-generator, qr-codes, qr-generator
Last push: 2026-03-03T16:58:41+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 70, release rhythm 41, longevity 100
- inputs: {"age_days": 3508, "days_push": 183, "days_rel": 396, "gap_med": 0, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4755, forks 505 (observed 2026-08-28T04:08:58.866313+00:00)

## What it is
EFQRCode is a lightweight, pure-Swift library for generating stylized QR code images (with watermarks, icons, or GIFs) and recognizing QR codes from images. It is built on CoreGraphics, CoreImage, and ImageIO and supports iOS, macOS, watchOS, tvOS, and visionOS.

## Use cases
- generate a QR code image in an iOS app
- create stylized QR codes with a logo or watermark
- scan and recognize QR codes from images in Swift
- generate animated GIF QR codes
- add QR code generation to a macOS or watchOS app
- read QR code content from a photo

## When to choose
- you are building an Apple-platform app in Swift and need QR code generation or recognition
- you want stylized QR codes with icons, watermarks, or animation
- you need a lightweight pure-Swift solution with SPM, CocoaPods, or Carthage support

## When to avoid
- you need QR generation on non-Apple platforms like Android or web
- you need barcode formats beyond QR codes
- you need live camera-based scanning rather than recognition from images

## Facets
- artifact type: library
- maturity: stable
- function: image-processing, computer-vision, sdk
- domain: mobile-development, cross-platform, developer-tools
- platform: -
- tags: qrcode, qr-code-generator, qr-code-scanner, barcode, swift-library, watermark, stylized-qr, ios, macos, watchos, tvos, swift

## Member repositories
- EFPrefix/EFQRCode (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:58.866313+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:18:53.777804+00:00, confidence not recorded.
  - readme: https://github.com/EFPrefix/EFQRCode (fetched 2026-08-28T04:08:58.866313+00:00, sha 7759eeb9b18e)
  - homepage: https://efprefix.github.io/EFQRCode (fetched 2026-08-29T09:02:17.813496+00:00, sha d964ab447626)
- Data as of 2026-08-30T08:39:29.467469+00:00.