Life & fun · alternatives · 2026
24 alternatives to Browser-based PDF form fields detection (YOLO-based)
Hey HN! Last week, Joe Barrow released CommonForms [1], a set of open models for automatically detecting form fields in PDFs. He trained two models, FFDNet-S and FFDNet-L, on a dataset of 55k documents. You can read more about his approach in the arXiv paper [2]. As someone who's been searching for reliable models to auto-detect form fields (one of the last hard problems in PDF form filling), I was seriously impressed by the quality of these models. I wanted to give them the attention and distribution they deserve, so I created a fully browser-based implementation that handles both detection…
This browser-based tool automatically detects form fields in PDF documents using YOLO-based machine learning models trained on 55,000 documents. It runs entirely in the browser without requiring server-side processing… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1UY
I used the YOLO object detection library from Ultralytics to scan over 40 million hotel photos and identify images with office chairs. This helped me create a map showing hotels suitable for remote work. Map: https://www.tripoffice.com/maps Yolo: https://www.ultralytics.com/yolo The whole process was done on a home Mac without the use of any LLMs. It's based on traditional object detection technology.
2025 · its alternatives →
- 2
Implement scanyourpdf.com in JavaScript. No backend servers needed.
2022 · lookscanned.io · its alternatives →
- 3
Hi, I've just finished a rebuild of this function and added a lot of new features: info, page index, minimap, inverted index,... I think it may be useful for inspection, debugging or just as a learning resource showcasing the PDF file format. This is a pet project and I would be happy to receive some feedback! Regards
2025 · github.com · its alternatives →
- 4
PDFify▲230Free macOS text recognition, PDF composition & compression
2018 · pdfify.app · its alternatives →
- 5
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 →
- 6
Fast and efficient text recognition from any image and PDF
2019 · apps.microsoft.com · its alternatives →
- 7
GUI analyzer for deep-diving into PDF files. Detect malicious payloads, understand object relationships, and extract key information for threat analysis. - seekbytes/IPA
2024 · github.com · its alternatives →
- 8
Nolain OCR▲85Turn hundreds of documents into one clean spreadsheet
Feb 2026 · nolainocr.com · its alternatives →
- 9
A library for object detection and seamless YOLO model integration in Elixir - poeticoding/yolo_elixir
2024 · github.com · its alternatives →
- 10UD
2018 · modeldepot.github.io · its alternatives →
- 11PT
Hi, OP here. A friend was involved in a custody battle and was afraid his ex was going to leak all of his discovery documents on the internet and he asked if there was something I could do to make it harder for bots/crawlers to find sensitive information. Originally I was going to turn all of his docs to image based PDFs, but those get large fast and are easy to OCR. So I found a post musing about altering fonts/glyphs so that it looks like english, but the actual character being seen by the pdf reader is a non-english character. As such, when you try to OCR these files, it doesn't…
2022 · humaneyesonly.com · its alternatives →
- 12
I've developed a Python API service that uses GPT-4o for OCR on PDFs. It features parallel processing and batch handling for improved performance. Not only does it convert PDF to markdown, but it also describes the images within the PDF using captions like `[Image: This picture shows 4 people waving]`. In testing with NASA's Apollo 17 flight documents, it successfully converted complex, multi-oriented pages into well-structured Markdown. The project is open-source and available on GitHub. Feedback is welcome.
2024 · github.com · its alternatives →
- 13
Hey HN! I built SimplePDF Copilot: an AI assistant that can interact with the PDF editor. It fills fields, answers questions, focuses on a specific field, adds fields, deletes pages, and so on. It's built on top of SimplePDF that I started 7 years ago, pioneering privacy-respecting client-side pdf editing, now used monthly by 200k+ people. As for the privacy model: the PDF itself never leaves the browser. Parsing, rendering, and field detection all run client-side. The text the model needs (and your messages) goes to whatever LLM you point at. By default that's our demo proxy (DeepSeek V4…
May 2026 · copilot.simplepdf.com · its alternatives →
- 14
Label images and video for Computer Vision applications - Cartucho/OpenLabeling
2018 · github.com · its alternatives →
- 15
ClearDoc▲6Hi HN! I recently launched a prototype of *ClearDoc*, an AI-powered tool to extract structured data from unstructured documents like invoices, bills of lading, certificates, etc. It uses *OCR (PaddleOCR)* and *LLMs* to detect and align key fields — even for complex documents with tables, nested fields, or in different languages. It doesn't require templates and can be *self-hosted* (demo runs on my own GPU). Live demo (no sign-up): http://cleardoc.v5ent.com/ Demo video: https://www.youtube.com/watch?v=u83T6iewfNs Right now: - Fields are auto-aligned visually on…
2025 · cleardoc.v5ent.com · its alternatives →
- 16
OCR/Document extraction field has seen lot of action recently with releases like Mixtral OCR, Andrew Ng's agentic document processing etc. Also there are several benchmarks for OCR, however all testing for something slightly different which make good comparison of models very hard. To give an example, some models like mixtral-ocr only try to convert a document to markdown format. You have to use another LLM on top of it to get the final result. Some VLM’s directly give structured information like key fields from documents like invoices, but you have to either add business rules on top…
2025 · nanonets.com · its alternatives →
- 17
Hey HN, solo dev here. After years of frustration with how LLMs handle complex documents, especially PDFs with tables, I decided to build a solution myself. My approach uses a Markdown conversion step to preserve the table structure, which seems to work surprisingly well for chunking. This little parser is the first public piece of a much larger, privacy-focused AI platform I'm building. I'm pretty much running on fumes financially, so any feedback, critique, or support is massively appreciated. Happy to answer any questions about the approach!
Nov 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 →
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- 20
Open Source Document Management System for Digital Archives (Scanned Documents) - ciur/papermerge
2020 · github.com · its alternatives →
- 21
Hi HN, creator of EmbedPDF here. I recently posted my open-source PDF viewer here, and one thing I really value is that it runs completely offline. I started wondering if we could push that further: could we do full ML layout analysis (detecting tables, headers, columns) directly in the browser? To my surprise, it actually works. The catch: It is far from production-ready. It crashes on most phones, and on older computers, it can be incredibly slow. The why: I believe the future of document processing is local. Many users work with sensitive documents (bank statements, legal contracts) and…
2025 · embedpdf.com · its alternatives →
- 22
WebFill▲24Automate form filling, emails, and MCQs with AI precision.
2024 · webfill.co · its alternatives →
- 23
No iframes, JavaScript embeds, or CSS overrides. Save data from online forms without a server. Filter submissions for spam. Forward them with webhooks. Great with WordPress, Jekyll, Middleman, Hugo, Gatsby, GitHub Pages or other static sites.
2014 · formkeep.com · its alternatives →
- 24
PDFDIT▲17Edit your PDFs effortlessly with AI-powered text recognition
2025 · pdfdit.com · its alternatives →
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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 →