The best open source alternative to Microsoft Lens is FairScan. If that doesn't suit you, our users have ranked more than 50 alternatives to Microsoft Lens and 19 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Microsoft Lens are OSS Document Scanner, NormCap, GImageReader and Open Scanner.
Android document scanner offering multi-page PDF creation, automatic detection, image enhancement, and distraction-free interface, all open-source. No ads, cloud, watermarks, or tracking—scans remain on your device. Minimal permissions ensure privacy and transparency.
France
EU
The OSS Document Scanner is a free and Open Source app to transform your mobile device into a powerful document scanner.
FranceEU
gImageReader is a simple Gtk/Qt front-end to the Tesseract OCR Engine.
Switzerland
Open Scanner is a fast and simple-to-use paper-scanning app with AI features to speed up your scanning workflow:
Crow Translate is a simple and lightweight translator programmed in C++ / Qt that allows to translate and speak text using Google, Yandex and Bing translate API.
Ukraine
Capture2Text enables users to quickly OCR a portion of the screen using a keyboard shortcut.
United States
OpenScan is an open source app that enables users to scan hardcopies of documents or notes and convert it to PDF or JPEG files. Its motto is "No ads. No data collection. We respect your privacy.".
Main point of this app is to scan or select existing PDF documents simply using intent or chooser. Other apps require payment to access their api/sdk or simply don't have a possible way to do it. So they rely on switching between an app ,file chooser and a scanner.
This little application provides a way on scanning handwritten notes and printed documents.
Brazil
Text Grab is a minimal optical character recognition (OCR) utility for Windows 10/11 which makes all visible text available to be copied.
United States
