The best open source alternative to CamScanner is OSS Document Scanner. If that doesn't suit you, our users have ranked more than 100 alternatives to CamScanner and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to CamScanner are Open Note Scanner, Tesseract, GImageReader and NormCap.
The OSS Document Scanner is an Open Source app to scan all your documents. You either scan using your camera or by importing an image. The app will automatically detect you document within the photo and will crop the image.
Most users think OSS Document Scanner is a great CamScanner alternative.
This little application provides a way on scanning handwritten notes and printed documents.
One of the few - perhaps even the only - open source scanning apps for Android. Gives comparable results to Camscanner. Needs OpenCV Manager to be installed, but that's a formality (the latter requires no permissions.)
I could never scan a document with this app.
Some users think Open Note Scanner is a great CamScanner alternative, some don't.
Tesseract.js is a javascript library that gets words in almost any language out of images.
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.".
Unfortunately no filters like "real" scan apps; so this is basically the original photo
Very fast and extremely easy to use. No ads or privacy scandals. Free and open source. Scans, crops, and touches up documents as well as CamScanner.
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.
Open Scanner is a fast and simple-to-use paper-scanning app with AI features to speed up your scanning workflow:
Capture2Text enables users to quickly OCR a portion of the screen using a keyboard shortcut.
Text Grab is a minimal optical character recognition (OCR) utility for Windows 10/11 which makes all visible text available to be copied.
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OSS Document Scanner is more lightweight, and has better filters. It condenses the files similarly as CamScanner, but the text is more clear.
The only problem is that for my phone (GrapheneOS), I have to take photos with camera and import them in the app, because for whatever reason it makes the images blurry when I take the photo in the app itself. This may be because of my Android operating system.
But it's smaller, open-source, and outputs better images (textbook pages).