Tesseract.js is a javascript library that gets words in almost any language out of images. (Demo)
Image Recognition
Video Real-time Recognition
Tesseract.js wraps a webassembly port of the Tesseract OCR Engine.
It works in the browser using webpack, esm, or plain script tags with a CDN and on the server with Node.js.
After you install it, using it is as simple as:
When recognizing multiple images, users should create a worker once, run worker.recognize for each image, and then run worker.terminate() once at the end (rather than running the above snippet for every image).
Installation
Tesseract.js works with a <script> tag via local copy or CDN, with webpack via npm and on Node.js with npm/yarn.
The following are old examples that use depreciated versions of Tesseract.js. Updating to Tesseract.js v5 is highly recommended. Users are encouraged to create updated examples (or make entirely new ones) and submit them as pull requests.
React Native is not supported as it does not support Webassembly.
Contributing
Development
To run a development copy of Tesseract.js do the following:
# First we clone the repository
git clone https://github.com/naptha/tesseract.js.git
cd tesseract.js
# Then we install the dependencies
npm install
# And finally we start the development server
npm start
You can use Gitpod(A free online VS Code like IDE) for contributing. With a single click it will launch a ready to code workspace with the build & start scripts already in process and within a few seconds it will spin up the dev server so that you can start contributing straight away without wasting any time.
Building Static Files
To build the compiled static files just execute the following:
npm run build
This will output the files into the dist directory.
Contributors
Code Contributors
This project exists thanks to all the people who contribute. [Contribute].
Financial Contributors
Become a financial contributor and help us sustain our community. [Contribute]
Individuals
Organizations
Support this project with your organization. Your logo will show up here with a link to your website. [Contribute]
FAQs
Pure Javascript Multilingual OCR
The npm package tesseract.js receives a total of 55,120 weekly downloads. As such, tesseract.js popularity was classified as popular.
We found that tesseract.js demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago.It has 4 open source maintainers collaborating on the project.
Last updated on 26 Feb 2024
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