AI · alternatives · 2026
24 alternatives to OtterSearch
AI search for PDFs & images. Better than Spotlight.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
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PDF Query▲80Quickly search and find what you need within any PDF
2023 · pdfquery.com · its alternatives →
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Search multiple documents insanely fast
2017 · pdfsearchapp.com · its alternatives →
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DocSearch▲259The easiest way to add search to your documentation
2015 · community.algolia.com · its alternatives →
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Search multiple documents insanely fast
2017 · pdfsearchapp.com · its alternatives →
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After getting frustrated with macOS's Spotlight search, e.g., typing "driver license" doesn't give me anything unless the file name matches exactly, I thought, why not index my entire Documents folder? This way, I can find that one PDF or image buried deep in subfolders using natural language queries. So I built SmartSearch; it uses SentenceTransformers for embeddings and FAISS for fast similarity search. Best of all, it runs locally on your computer. Github: https://github.com/neberej/smart-search/ Demo:…
2025 · github.com · its alternatives →
- 7OA
Hi HN, I built an open-source AI agent that has already indexed and can search the entire Epstein files, roughly 100M words of publicly released documents. The goal was simple: make a large, messy corpus of PDFs and text files immediately searchable in a precise way, without relying on keyword search or bloated prompts. What it does: - The full dataset is already indexed - You can ask natural language questions - Answers are grounded and include direct references to source documents - Supports both exact text lookup and semantic search Discussion around these files is often fragmented. This…
Jan 2026 · epstein.trynia.ai · its alternatives →
- 8PO
Fill in PDF templates with the PDF Otter API. Use it to accept eSignatures in your app, repeatedly fill in common PDF forms, or build large scale apps around PDF documents.
2017 · pdfotter.com · its alternatives →
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Memoriafree tier, from $9.99/mo▲156Search photos by text, speech, object & faces. 100% offline.
Aug 2026 · memoria.anasouh.fr · its alternatives →
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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 →
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DocuSmart AI ▲118Turning fragmented knowledge into one simple system
Jul 2026 · docusmart.eu · its alternatives →
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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 →
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Dear HN Community, I am a long time fan and first-time contributor. I just launched a developer focused semantic search platform and wanted to share it with the community. The idea is simple: upload structured or unstructured documents, select the fields you want to index and tag as metadata, and instantly get a clean search API you can use in your own app. Here is what it currently supports: - Manage your own tenants and projects - Upload .json and .txt files (support for .pdf, .docx, .xlsx, .yml, etc. coming soon) - Expose 3 APIs: search, upload document (embeddings), and delete document -…
2025 · aisearch.vpuna.com · its alternatives →
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Tidy▲98Spotlight returns nothing for words you know are in a scanned document. It is not a bug: a scan has no text layer, so there is nothing to index. How to check, and three ways to make those documents searchable on a Mac.
Jul 2026 · tidymacapp.com · its alternatives →
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Easily search images and text with AI that can see
2022 · its alternatives →
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PDF Vector▲57AI-Powered Document Processing for Developers & No-Coders
2025 · pdfvector.com · its alternatives →
- 18QP
Hey HN! We've just launched Quilt, a robust RAG (Retrieval-Augmented Generation) UI that revolutionizes how you interact with your documents. Key features: - Multi-user setup with private/public document collections - Advanced hybrid RAG pipeline combining full-text & vector search - Smart citations with in-browser PDF preview and highlights - Fully customizable settings and prompts through the UI Making an account is free, no need to even use a strong password: this is only to ensure your documents are separate from the rest. We're keen to hear your thoughts and feedback. What features…
2024 · quilt.fly.dev · its alternatives →
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We built PageIndex, a document indexing system that turns documents into hierarchical search trees to support reasoning-based RAG. Traditional vector-based RAG often struggles with retrieval accuracy because it optimizes for similarity, not relevance. But what we really need in retrieval is relevance — which requires reasoning. When working with professional documents that demand domain expertise and multi-step reasoning, vector-based RAG and similarity search often fall short. So we started exploring a more reasoning-driven approach to RAG. Reasoning-based RAG enables LLMs to think and…
2025 · github.com · its alternatives →
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Easily perform OCR (Optical Character Recognition) on PDFs. `pdf2searchablepdf input.pdf` = voila! "input_searchable.pdf" is created & now has searchable text
2022 · github.com · its alternatives →
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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 →
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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 →