OCR powered screen-capture tool to capture information instead of images. For Linux, macOS and Windows.
Links: Source Code | Documentation | FAQs | Releases | Changelog
Choose one of the options for a prebuilt release. If you encounter an issue please take a look at the FAQs or report it.
normcap @ AUR (Arch/Manjaro)Note: You have to allow the unsigned application on first start: "System Preferences" → "Security & Privacy" → "General" → "Open anyway". You also have to allow NormCap to take screenshots. (#135)
As an alternative to a prebuilt package from above you can install the NormCap Python package for Python >=3.9, but it is a bit more complicated:
# Install dependencies (Ubuntu/Debian)
sudo apt install build-essential tesseract-ocr tesseract-ocr-eng libtesseract-dev libleptonica-dev wl-clipboard
## Install dependencies (Arch)
sudo pacman -S tesseract tesseract-data-eng wl-clipboard
## Install dependencies (Fedora)
sudo dnf install tesseract wl-clipboard
## Install dependencies (openSUSE)
sudo zypper install python3-devel tesseract-ocr tesseract-ocr-devel wl-clipboard
# Install normcap
pip install normcap
# Run
./normcap
# Install dependencies
brew install tesseract tesseract-lang
# Install normcap
pip install normcap
# Run
./normcap
1. Install Tesseract 5 by using the
installer provided by UB Mannheim.
2. Identify the path to Tesseract base folder. It should contain a /tessdata subfolder
and the tesseract.exe binary. Depending on if you installed Tesseract system-wide or
in userspace, the base folder should be:
C:\Program Files\Tesseract-OCR
or
C:\Users\<USERNAME>\AppData\Local\Programs\Tesseract-OCR
3. Adjust environment variables:
Create an environment variable TESSDATA_PREFIX and set it to your Tesseract base
folder, e.g.: "System Properties" → Tab "Advanced" → "Environment Variables..." →
"New..." → Variable: TESSDATA_PREFIX, Value: "C:\Program Files\Tesseract-OCR"
Append Tesseract's base folder to the environment variable PATH, e.g.: "System
Properties" → Tab "Advanced" → "Environment Variables..." → Section "User variables"
→ Select PATH → "Edit..." → Add a new entry "C:\Program Files\Tesseract-OCR"
To test your setup, open a new cmd-terminal and run:
tesseract --list-langs
4. Install and run NormCap:
# Install normcap
pip install normcap
# Run
normcap
See XKCD:
Prerequisites for setting up a development environment are: Python >=3.9, uv and Tesseract >=5.0 (incl. language data).
# Clone repository
git clone https://github.com/dynobo/normcap.git
# Change into project directory
cd normcap
# Create virtual env and install dependencies
uv venv
uv sync
# Register pre-commit hook
uv run pre-commit install
# Run NormCap in virtual env
uv run python -m normcap
This project uses the following non-standard libraries:
And it depends on external software:
Packaging is done with:
Thanks to the maintainers of those nice tools!
If NormCap doesn't fit your needs, try those alternatives (no particular order):
Made with contrib.rocks
FAQs
OCR-powered screen-capture tool to capture information instead of images.
We found that normcap demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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