Best Open Source ocr Libraries
A curated list of the most popular GitHub repositories tagged with ocr. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1tesseract-ocr/tesseract
Tesseract Open Source OCR Engine (main repository)
#2PaddlePaddle/PaddleOCR
Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.
#3opendatalab/MinerU
Transforms complex documents like PDFs into LLM-ready markdown/JSON for your Agentic workflows.
#4hiroi-sora/Umi-OCR
OCR software, free and offline. 开源、免费的离线OCR软件。支持截屏/批量导入图片，PDF文档识别，排除水印/页眉页脚，扫描/生成二维码。内置多国语言库。
#5siyuan-note/siyuan
A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.
#6naptha/tesseract.js
Pure Javascript OCR for more than 100 Languages 📖🎉🖥
#7paperless-ngx/paperless-ngx
A community-supported supercharged document management system: scan, index and archive all your documents
#8ShareX/ShareX
ShareX is a free and open-source application that enables users to capture or record any area of their screen with a single keystroke. It also supports uploading images, text, and various file types to a wide range of destinations.
#9ocrmypdf/OCRmyPDF
OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched
#10JaidedAI/EasyOCR
Ready-to-use OCR with 80+ supported languages and all popular writing scripts including Latin, Chinese, Arabic, Devanagari, Cyrillic and etc.
#11Unstructured-IO/unstructured
Convert documents to structured data effortlessly. Unstructured is open-source ETL solution for transforming complex documents into clean, structured formats for language models. Visit our website to learn more about our enterprise grade Platform product for production grade workflows, partitioning, enrichments, chunking and embedding.
#12sml2h3/ddddocr
带带弟弟 通用验证码识别OCR pypi版
#13tisfeng/Easydict
一个简洁优雅的词典翻译 macOS App。开箱即用，支持离线 OCR 识别，支持有道词典，🍎 苹果系统词典，🍎 苹果系统翻译，OpenAI，Gemini，DeepL，Google，Bing，腾讯，百度，阿里，小牛，彩云和火山翻译。A concise and elegant Dictionary and Translator macOS App for looking up words and translating text.
#14DayBreak-u/chineseocr_lite
超轻量级中文ocr，支持竖排文字识别, 支持ncnn、mnn、tnn推理 ( dbnet(1.8M) + crnn(2.5M) + anglenet(378KB)) 总模型仅4.7M
#15getomni-ai/zerox
OCR & Document Extraction using vision models
#16yusufkaraaslan/Skill_Seekers
Convert documentation websites, GitHub repositories, and PDFs into Claude AI skills with automatic conflict detection
#17ripperhe/Bob
Bob 是一款 macOS 平台的翻译和 OCR 软件。
#18zyddnys/manga-image-translator
Translate manga/image 一键翻译各类图片内文字 https://cotrans.touhou.ai/ (no longer working)
#19pymupdf/PyMuPDF
PyMuPDF is a high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.
#20bytedance/Dolphin
The official repo for “Dolphin: Document Image Parsing via Heterogeneous Anchor Prompting”, ACL, 2025.
#21adithya-s-k/omniparse
Ingest, parse, and optimize any data format ➡️ from documents to multimedia ➡️ for enhanced compatibility with GenAI frameworks
#22clovaai/donut
Official Implementation of OCR-free Document Understanding Transformer (Donut) and Synthetic Document Generator (SynthDoG), ECCV 2022