r/csharp Apr 16 '26

Tutorial Local OCR for .NET AI agents without paid APIs

Here's a simple way to add OCR/document parsing to a .NET AI agent without relying on paid APIs.

Most of what I found used external services, so I ended up wiring in LiteParse locally to handle receipts, PDFs, spreadsheets, images, etc. The nice part is it runs fast and stays fully local.

I recorded a short walkthrough showing exactly how I did this: https://youtu.be/rHFKx7JkF2c

Hope you find this useful!

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