@brian-girko/image-readerPublic

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OCR browser extension with MCP server for agents

OCR Image Reader adds a toolbar button to your browser. When you click it, you can select a region in the current window and extract text from that area using Tesseract.js. It also includes an MCP server definition so agents can use the OCR features as tools through JSON-RPC and JSON Schema.

127 stars•40 forks•JavaScript•Updated 23d ago

OCR - Image Reader - Browser Extension Review

eccorem project • 90k views • 4 years ago

Who it's for

Builders who want their agent to read text from selected screen regions or screenshots.

What it delivers

You can turn text in images into usable text without retyping it yourself.

What it does

Area selection OCR

Adds a browser button that lets you draw a region in the active window and run OCR on it.

Tesseract-based text recognition

Uses `tesseract.js` for OCR, with support for many languages, text orientation, and script detection.

MCP tool definition

Provides `v3/mcp/mcp.json` so agents can call the OCR actions as tools.

Cross-browser extension builds

Includes extension code for Chrome, Firefox, and the v3 browser extension layout.

README

OCR Image Reader

This extension adds a toolbar button to your browser to perform OCR. When this action button is pressed, it allows the user to select a region in the currently active window. The extension captures the area and tries to recognize text inside this region using the internal powerful OCR engine (Tesseract engine). This extension uses the "tesseract.js" library that supports more than 100 languages, automatic text orientation, and script detection.

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MCP Server

This extension can be used with coding agents such as OpenCode. Read FAQs page for more info. Also check the mcp.json (LLM tool definition) file which defines available tools for an agent, using JSON-RPC 2.0 as the envelope and JSON Schema for input/output.

Files in the repo

Repository payload•5 top-level entries

.github— GitHub workflows and templates
v2— 2 items
v3— 4 items
LICENSE— License
README.md— The README

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