Gransk – Document processing for investigations
Document processing for investigations
Gransk – Document processing for investigations launched on December 3, 2016 with 111 votes, #327 of 3,449 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 9 years on.
In plain words
Gransk is a free, open-source document processing tool designed for investigators analyzing large collections of documents. It extracts content using Apache Tika, indexes data with Elasticsearch, and can unpack disk images with dfVFS. The tool provides a Python processing engine and web interface to quickly identify relevant information when investigating potential crimes or suspicious activity in document collections.
written from the facts on this page · September 2026
From the sources
Source/Download: https://github.com/pcbje/gransk Documentation: http://gransk.readthedocs.io Gransk is a free and open source tool that aims to be a Swiss army knife of document processing and analysis. Its primary objective is to quikly provide users with insight to their documents during investigations. It includes a processing engine written in Python and a web interface. Under the hood it uses Apache Tika for content extraction, Elasticsearch for data indexing, and dfVFS to unpack disk images. Given a bunch of documents and the question "has there been commited a crime here?", Gransk will help you with the following: It's super-easy to get started! Just download, import and double-click…from gransk.com
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