# allgood/OpenNoteScanner

Android application for scanning and manipulating handwritten notes and documents.

Repository: https://github.com/allgood/OpenNoteScanner
Canonical: https://ross.abutalabs.com/products/opennotescanner
Language: Kotlin
License: NOASSERTION
License Family: other
Last push: 2025-04-23T22:20:54+00:00

## Health v2 (maintenance only)
Score: 31/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 18, release rhythm 8, longevity 100
- inputs: {"age_days": 3857, "days_push": 497, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1539, forks 300 (observed 2026-08-28T04:05:00.428204+00:00)

## What it is
OpenNoteScanner is an open-source Android app for scanning handwritten notes and printed documents using a mobile device camera. It uses OpenCV for automatic edge detection and perspective correction, and supports QR-coded page templates, gallery organization, and PDF/image export.

## Use cases
- scan handwritten notes with my phone
- digitize paper documents on android
- scan documents with automatic edge detection
- convert scanned pages to pdf
- scan a qr-coded note template
- share scanned documents as images
- open source alternative to camscanner

## When to choose
- you need a free, open-source document scanner on Android
- you want automatic edge detection and perspective correction
- you want to export scans as PDF or images
- you prefer apps available via F-Droid

## When to avoid
- you need OCR text extraction from scans
- you need iOS or desktop support
- you want cloud sync or multi-device organization
- you need batch scanning of large document sets

## Facets
- artifact type: application
- maturity: maintenance
- function: image-processing, computer-vision, ocr, pdf
- domain: image-processing, mobile-development, developer-tools, files
- platform: -
- tags: document-scanner, open-source, opencv, kotlin, note-scanning, pdf-export, camera, android, mobile

## Member repositories
- allgood/OpenNoteScanner (main) score 31

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:00.428204+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 2026-08-30T04:30:53.170942+00:00, confidence not recorded.
  - readme: https://github.com/allgood/OpenNoteScanner (fetched 2026-08-28T04:05:00.428204+00:00, sha e1084c086061)
- Data as of 2026-08-30T08:39:29.467469+00:00.