Life & fun · alternatives · 2026
24 alternatives to Gransk – Document processing for investigations
Document processing for investigations
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… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Gransk – Document processing for investigations launched in 2016; newer entries below may have overtaken it.
- 1
AnyParser API▲885The first LLM for document parsing with accuracy and speed
2024 · cambioml.com · its alternatives →
- 2
Hey HN, we’re Adi and Arnav. A few months ago, we hit a wall trying to get LLMs to answer questions over research papers and instruction manuals. Everything worked fine, until the answer lived inside an image or diagram embedded in the PDF. Even GPT‑4o flubbed it (we recently tried O3 with the same, and surprisingly it flubbed it too). Naive RAG pipelines just pulled in some text chunks and ignored the rest. We took an invention disclosure PDF (https://drive.google.com/file/d/1ySzQgbNZkC5dPLtE3pnnVL2rW_9...) containing an IRR‑vs‑frequency graph and asked GPT “From…
2025 · github.com · its alternatives →
- 3
Docparser helps you extract important data from Word, PDF, CSV, XLS, TXT, XML, and image files. Send to Excel, Google Sheets, and 100s of apps.
2016 · docparser.com · its alternatives →
- 4
Documind is an open-source tool that turns documents into structured data using AI. What it does: - Extracts specific data from PDFs based on your custom schema - Returns clean, structured JSON that's ready to use - Works with just a PDF link + your schema definition Just run npm install documind to get started.
2024 · github.com · its alternatives →
- 5
DeepSeek-OCR▲350Advanced visual-text compression technology
2025 · huggingface.co · its alternatives →
- 6
Analyzing and visualizing data from CSV files
2025 · claude.com · its alternatives →
- 7
The PDF parser is a rule based parser which uses text co-ordinates (boundary box), graphics and font data. The PDF parser works off text layer and also offers a OCR option to automatically use OCR if there are scanned pages in your PDFs. The OCR feature is based off a modified version of tika which uses tesseract underneath. The PDF Parser offers the following features: * Sections and subsections along with their levels. * Paragraphs - combines lines. * Links between sections and paragraphs. * Tables along with the section the tables are found in. * Lists and nested lists. * Join content…
2024 · github.com · its alternatives →
- 8PA
- 9
- 10
WhatTheDuck is an in-browser sql tool to analyze csv files that uses duckdb-wasm under the hood. Please provide feedback/issues/pull requests.
2024 · github.com · its alternatives →
- 11
Search, Aggregate, & Plot CSVs with millions of rows
2017 · csvexplorer.com · its alternatives →
- 12
Free tool to extract tables from PDF and Images
2021 · docsumo.com · its alternatives →
- 13
Rank a list of documents according to their relevance to a query primarily and your custom instructions secondarily. We evaluated the model on instructions for recency, document type, source, and metadata, and it can generalize to other instructions as well. The reranker supports multilinguality. Th
2025 · docs.contextual.ai · its alternatives →
- 14
Data Extraction▲103Extract Data from Images Minimizing Time and Manual Work
2023 · dataextraction.co · its alternatives →
- 15
- 16
What's in your data? Extract schema, statistics and entities from datasets - capitalone/DataProfiler
2021 · github.com · its alternatives →
- 17
Hi, I'm building an open-source self-hostable document extraction tool powered by LLM. There are popular data extraction tools and OCR tools in the market. None of them are open source. Most accounting firms, law firms, insurance, back office, and real-estate folks would like to use a tool like this. You can add PDF documents, Images, and audio files and create columns to answer questions on documents or extract information into tabular format. Access to repo: https://github.com/harishdeivanayagam/rowfill Screenshots:…
2025 · github.com · its alternatives →
- 18
Hi HackerNews, Lately, I have seen an explosion in posts offering paid APIs/services to get unstructured data into LLMs (i.e. langchain extract, ragflow, unstructured, unstract, just to name a few) and I have been largely disappointed by them, either because they fail to implement multimodal support, fail to give good context for "really tricky" PDFs / Word docs / Powerpoints, or are just plain difficult to use. In light of all these posts I figured I'd share my solution that has been working smoothly for me and my clients. I put it up on GitHub for free so you can check it…
2024 · github.com · its alternatives →
- 19
- 20
Hi HN, I built a Java library called SmartFileProcessor to make high-performance, multi-threaded file processing simpler and more maintainable. Most Java file processing solutions either involve a lot of boilerplate or don’t handle concurrency, backpressure, or metrics well out of the box. I needed something fast, clean, and production-friendly — so I built this. Key features: Multi-threaded line/batch processing using a configurable thread pool Producer/consumer model with built-in backpressure Buffered, asynchronous writing with optional auto-flush Live metrics: memory usage,…
2025 · github.com · its alternatives →
- 21
Hey HN! I've build a simple tool to index and search your documents. This uses two great open source libraries: apache tika (for extracting content from docs) and apache lucene (for searching). It's been built with kotlin ktor as a web framework. You can index all kind of files (i.e doc, docx, xls, ppt, pdf, txt, html even ORC pdfs) and then search them using very advanced queries like "always contain X", "never contain X", "X near Y", wildcard search, proper stemming support etc. We're using it on my work where we have hundreds of thousands of doc/docx/pdf files and it works…
2024 · github.com · its alternatives →
- 22
Canonizr▲54Precise document extraction for your agents — zero retention
Apr 2026 · canonizr.com · its alternatives →
- 23
Improved file parsing for LLM’s. Contribute to Filimoa/open-parse development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 24
Also compare
- AnyParser API alternatives
- Morphik – Open-source RAG that understands PDF images, runs locally alternatives
- Convert PDF files into structured data alternatives
- Documind – Open-source AI tool to turn documents into structured data alternatives
- DeepSeek-OCR alternatives
- The Analysis tool in Claude.ai alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →