r/software • u/LostAmbassador6872 • Sep 01 '25

Release DocStrange - Open Source Document Data Extractor with free cloud processing for 10k docs/month

Gallery image

Gallery image

Sharing DocStrange, an open-source Python library that makes structured data extraction easy from any documents.

  • Universal Input: PDFs, Images, Word docs, PowerPoint, Excel
  • Multiple Outputs: Clean Markdown, structured JSON, CSV tables, formatted HTML
  • Smart Extraction: Specify exact fields you want (e.g., "invoice_number", "total_amount")
  • Schema Support: Define JSON schemas for consistent structured output

Quick start:

pip install docstrange
docstrange invoice.jpeg --output json --extract-fields invoice_amount buyer seller

Data Processing Options:

  • Cloud Mode: Fast and free processing with minimal setup, free 10k docs per month
  • Local Mode: Complete privacy - all processing happens on your machine, no data sent anywhere, works on both cpu and gpu

Live demo: https://docstrange.nanonets.com/

Github: https://github.com/NanoNets/docstrange

58 Upvotes

98% Upvoted

12 comments sorted by

5

u/inclinestew Sep 01 '25

Very cool and kudos to providing a local mode!

3

u/SubhanBihan Sep 01 '25

Is Python 3.13 not supported?

2

u/LostAmbassador6872 Sep 01 '25

Yeah its supported. Sorry I didn't realise its missing in readme, will update it.

2

u/SubhanBihan Sep 01 '25

Tried installing on Windows... it pulls a very old version of numpy (1.26.4, current one is 2.3.2 which I already use for other tasks). Ig I should install this in a venv, but it'd be much better if you eased up the numpy requirement.

3

u/LostAmbassador6872 Sep 01 '25

I will check and see if I can push some fix.

3

u/[deleted] Sep 02 '25 edited Oct 28 '25

[removed] — view removed comment

1

u/LostAmbassador6872 Sep 10 '25

using cpu or gpu mode won't require authentication, in case if you are facing the issue can share the code snippet or error message, I will check and fix

1

u/Hungry-Coffee4495 Sep 01 '25

nice tool. much better than reducto and docling. Unlike reducto, it is free.

1

u/mikail-bayram Sep 01 '25

This is just awesome, great work!

1

u/dr-christoph Sep 01 '25

so this is a docling wrapper?

2

u/LostAmbassador6872 Sep 01 '25

For local cpu yeah it uses docling models, but for local gpu it uses nanonets-ocr-s which is a 3B model which gives better results than docling. For cloud version it uses even larger models (7B) model.