QRYPT QR & Barcode Scanner is a fast, privacy-first Android optical utility engineered by ArnobRazz. Decode 13 industrial and retail barcode formats in real time, trigger verified smart actions (Open Link, View Product, Call, Send Email, Send Message, View Location, Add Contact), identify retail products via Open Food Facts with local Room SQLite caching, run batch inventory sessions, and generate 1024px HD custom QR codes.
Every capability listed below is implemented directly in the Kotlin + Jetpack Compose codebase and tested via automated JUnit & Robolectric verification suites.
Hardware-accelerated CameraX ImageAnalysis pipeline with STRATEGY_KEEP_ONLY_LATEST backpressure. Features Precision Square, 1D Laser Slit, and Full Frame target modes, pinch-to-zoom, tap-to-focus metering, Torch control, and automatic Y-plane low-light exposure boost (< 45 lux).
Every decoded code opens an interactive result sheet with context-aware actions: Open Link (with user confirmation dialog), View Product, Call, Send Email, Send Message, View Location, Add Contact, Copy, Share, and Search Online. Retail barcodes (EAN-13, EAN-8, UPC-A, UPC-E, ISBN) automatically query Open Food Facts v3 over HTTPS and cache product details locally in Room SQLite.
Every scanned URL is inspected on-device by PayloadParser.analyzeUrlSecurity() before opening a browser. Strictly blocks unsafe URI schemes (javascript:, data:, file:, intent:) and flags unencrypted http:// cleartext links, Punycode (xn--) homograph spoofing, raw IPv4/IPv6 hosts, embedded @ authority credentials, suspicious TLDs, and link shorteners.
Scan dozens of items in rapid succession with configurable duplicate cooldown suppression, inline smart actions on each captured item, live session counters, and bulk inventory/warehouse note tagging. Export complete batch sessions to RFC-4180 CSV or structured JSON with one tap.
Create custom QR codes and 1D/2D barcodes across 10 structured templates (URL, Wi-Fi, vCard 3.0, Retail GTIN, Email, SMS, Phone, Geo, Calendar, Text). Customize error correction (L, M, Q, H), rounded modules, color presets, and export up to 1536px PNGs.
All scanned and generated records plus cached product lookup metadata are persisted strictly on-device inside prism_scan_vault.db. Features instant full-text search across payloads and notes, 9 category/security filters, favorite bookmarking, and granular vault purge controls.
Scan EAN-13, EAN-8, UPC-A, UPC-E, and ISBN barcodes to automatically identify products, brands, ingredients, Nutri-Score, and nutrition facts per 100g.
Inspect restaurant menus, parking meters, and public posters for Punycode homographs, raw IP links, or unencrypted HTTP redirects before confirming external navigation.
Use the 1D Laser Slit and Batch Mode to scan EAN-13, UPC-A, Code 128, and ITF carton labels, tag aisle notes, and export RFC-4180 CSV sheets to your ERP.
Generate high-contrast QR codes, ISBN/EAN retail barcodes with automatic Modulo-10 check digits, and PDF417 badges at up to 1536x1536px resolution.
Every screenshot below is rendered directly from the real QRYPT Android application codebase via our automated Robolectric Native-Graphics test suite (./scripts/capture-screenshots.sh). Click any screen to inspect full size.
Precision Square reticle, 1D Laser Slit selector, Torch, Low-Light Boost, Photo Library & Self-Test controls.
Offline anti-phishing verification badge, parsed metadata table, favorite toggle, and context-aware actions.
Horizontal laser slit for tightly packed 1D barcodes plus uninterrupted continuous stream capture.
Multi-scan session queue with duplicate guard, bulk warehouse note tagging, and one-tap CSV/JSON export.
100% offline Room SQLite history with instant search, 9 category filters, favorites, and bulk export.
13-format QR & barcode creator with 10 structured payload templates, custom colors, and HD PNG export.
Displays QRYPT identity (Developer: Arnobrazz | Version 1.1.0), product lookup toggle, accent wavelengths, and privacy controls.
High-contrast daylight color scheme with a 1-tap header toggle for bright outdoor scanning.
Verified against BarcodeFormatType and PayloadParser.kt. QRYPT both decodes and generates all 13 symbologies locally.
| Category | Supported Formats / Schemas | Validation & Smart Actions |
|---|---|---|
| 2D Matrix Formats (4) |
QR_CODE
AZTEC
DATA_MATRIX
PDF417
|
Full Reed-Solomon error correction (L, M, Q, H for QR), multi-rotation decoding, and high-density boarding pass / ID support. |
| 1D Retail GTIN & Bookland (4) |
EAN_13
EAN_8
UPC_A
UPC_E
|
Automatic Modulo-10 check-digit computation, GS1 Country/Region Prefix Lookup, and ISBN-13 / ISBN-10 detection. |
| 1D Industrial & Logistics (5) |
CODE_128
CODE_39
CODE_93
CODABAR
ITF
|
Dedicated 1D Laser Slit viewfinder mode, warehouse batch tagging, and automatic even-length digit normalization for ITF. |
| Structured Payload Parsers (12) |
URL (HTTP/HTTPS)
WIFI:
VCARD / MECARD
VEVENT Calendar
mailto: / MATMSG:
smsto:
tel:
geo:
ISBN
PRODUCT GTIN
JSON
TEXT
|
One-tap system intents: Open Verified Link, Copy Wi-Fi Password & Open Wi-Fi Settings, Save Contact, Add Calendar Event, Dial, SMS, Email, Open Maps. |
Verified directly from app/src/main/AndroidManifest.xml and app/build.gradle.kts.
androidx.core.content.FileProvider (android:exported="false") only when you explicitly tap Share or Export.
android.permission.CAMERA (Optional Runtime): Used strictly to analyze live viewfinder frames in volatile memory. If denied, you can still scan images from your photo library, use the Self-Test suite, browse the Vault, and create codes in Studio.
android.permission.INTERNET & ACCESS_NETWORK_STATE: Used strictly to fetch public product metadata and images from Open Food Facts over HTTPS when a retail product barcode is scanned.
PickVisualMedia) and never requests READ_MEDIA_IMAGES or READ_EXTERNAL_STORAGE.
Download the verified release APK directly from GitHub Releases or compile from source with JDK 17/21 and Gradle.
Download QRYPT-v1.1.0-release.apk or QRYPT.apk from the official GitHub Release v1.1.0 page on your Android device (Android 7.0 / API 24 or newer).
Every GitHub release includes a public SHA256SUMS.txt file fingerprint (not a private key) so users can verify the downloaded APK was not corrupted:
sha256sum QRYPT-v1.1.0-release.apk
# Compare with SHA256SUMS.txt on the v1.1.0 GitHub Release pageClone the repository and run the unit & Robolectric verification suite or assemble a debug APK locally:
git clone https://github.com/CodeByArnob/QRYPT.git
cd QRYPT
gradle :app:testDebugUnitTest
gradle :app:assembleDebugEAN-13, EAN-8, UPC-A, UPC-E, ISBN) is scanned, QRYPT queries the Open Food Facts v3 HTTPS endpoint and caches the product locally in Room SQLite.
ActivityResultContracts.PickVisualMedia). When you tap Photo Library, the Android OS presents its built-in picker and grants QRYPT temporary read access only to the single image you choose, keeping the rest of your photo library completely private.
PayloadParser.analyzeUrlSecurity() inspects the URI structure locally. It blocks unsafe URI schemes (javascript:, data:, file:, intent:) and flags unencrypted http:// protocols, Punycode (xn--) internationalized homograph attacks, raw IPv4/IPv6 hostnames, embedded @ authority spoofing, high-risk top-level domains, and URL shorteners before launching any browser intent.
applicationId = "com.arnobrazz.qrypt" remains intact in app/build.gradle.kts for standard Android installation and upgrades.