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Top 15 C# OCR Projects
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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.
I made sure to document every step of the way via screenshots to ensure I could test enabling and disabling certain features. The screenshot tool I use on Windows is called, ShareX, and I find it extremely useful with regards to pointing out certain elements in an image.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Text-Grab
Use OCR in Windows quickly and easily with Text Grab. With optional background process and notifications.
Project mention: I built an extension that lets you extract text from anywhere to your clipboard | news.ycombinator.com | 2025-03-05OP, you probably shouldn't say "runs directly in your browser" if it sends screenshots to a cloud service.
If anyone wants a similar tool for Windows that does the OCR locally instead, I recommend Text Grab (https://github.com/TheJoeFin/Text-Grab). I use it a lot for reading manga; works great.
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LLPlayer
The media player for language learning, with dual subtitles, AI-generated subtitles, real-time translation, and more!
Project mention: Show HN: LLPlayer – The media player for language learning | news.ycombinator.com | 2025-02-13 -
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clawPDF
Open Source Virtual (Network) Printer for Windows that allows you to create PDFs, OCR text, and print images, with advanced features usually available only in enterprise solutions.
Project mention: ClawPDF – Open-Source Virtual/Network PDF Printer with OCR and Image Support | news.ycombinator.com | 2025-05-19 -
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Inventory_Kamera
Scans Genshin Impact characters, artifacts, and weapons from the game window into a JSON file.
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DocumentLab
OCR using tesseract, ImageMagick, EmguCV, an advanced query language and a fluent query interface for C#
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C# OCR discussion
C# OCR related posts
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ClawPDF – Open-Source Virtual/Network PDF Printer with OCR and Image Support
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MORT: Real-time game translator with OCR
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I built an extension that lets you extract text from anywhere to your clipboard
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Microsoft Will Switch Off Recall by Default After Security Backlash
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AI-Powered Developer Tools
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Savior for Non-Japanese user
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Skyproc translation nuked
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A note from our sponsor - SaaSHub
www.saashub.com | 23 Jun 2025
Index
What are some of the best open-source OCR projects in C#? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | ShareX | 32,777 |
| 2 | ailab | 7,797 |
| 3 | Text-Grab | 3,666 |
| 4 | naps2 | 3,388 |
| 5 | LLPlayer | 1,744 |
| 6 | MORT | 1,061 |
| 7 | clawPDF | 806 |
| 8 | Inventory_Kamera | 727 |
| 9 | PgsToSrt | 104 |
| 10 | DocumentLab | 74 |
| 11 | AoE4BO | 49 |
| 12 | cloud-ocr-snip | 10 |
| 13 | TextReader-Tesseract-OCR | 9 |
| 14 | Docutain-SDK-Example-.NET-MAUI | 5 |
| 15 | FallGuysNameFinder | 5 |
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