A simple OCR API server that's easy to deploy with Docker or on Heroku.
ocrserver is a simple OCR (optical character recognition) API server built in Go. It provides an HTTP interface to extract text from images using Tesseract OCR via the gosseract binding. The project is designed to be easily deployable via Docker or on Heroku, making it accessible for developers needing quick OCR capabilities.
Developers and teams needing a lightweight, self-hosted OCR solution for applications, microservices, or prototyping without relying on external OCR APIs.
It offers a minimal, easy-to-deploy OCR server with Docker and Heroku support, reducing setup complexity compared to manual Tesseract integrations. Its simplicity and open-source nature make it a cost-effective alternative to commercial OCR services.
A simple OCR API server, seriously easy to be deployed by Docker, on Heroku as well
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Pre-built Docker images enable quick setup and running with a single command, as shown in the README with 'docker run -p 8080:8080 otiai10/ocrserver'.
Specifically designed for Heroku with container support, allowing straightforward deployment using Heroku CLI commands outlined in the documentation.
Provides minimal, well-defined endpoints for OCR processing, reducing integration complexity compared to raw Tesseract installations.
Supports adding language data via build arguments in Docker, such as 'docker-compose build --build-arg LOAD_LANG=rus', enabling flexible multi-language OCR.
As a simple wrapper for gosseract, it lacks advanced Tesseract features like image preprocessing or custom training, which can impact accuracy on non-standard images.
Optimal deployment requires Docker, making it less suitable for environments without containerization or for teams preferring bare-metal setups.
Beyond basic API endpoints in the wiki, documentation is minimal, with no guidance on error handling, scaling, or performance tuning for production use.