Top 29 Lettria Alternatives in 2026

Agentic Document Extraction pulls structured data from PDFs, images, spreadsheets using vision‑first parsing, preserving layout and delivering bounding‑box citations. Modular REST APIs and Python/TypeScript SDKs support on‑prem or cloud deployment for regulated sectors needing traceable, accurate extraction.

Docugami transforms unstructured business documents into structured knowledge graphs, extracting key data from contracts, invoices, clinical trials, and more. Its no‑code interface and secure connectors integrate with SharePoint, Google Drive, and ERPs, automating review, compliance, and decision workflows.

PdfGPT summarizes PDFs and folders, structures and links documents, supports conversational search for questions, comparisons, clause spotting. Built‑in agents perform compliance, risk, fact‑checking, and export results as notes, citations, or redlined docs.

super.AI converts unstructured documents into structured data using LLMs, guiding users through upload, classify, extract, and validate steps. It supports 500+ layouts, multiple languages, code‑free workflow building, and real‑time ERP/database sync for finance, logistics, insurance, and supply‑chain automation.

Chatpdf.so is an AI tool for efficiently extracting information from PDF documents. It uses GPT-4 for questions, summaries, and interactive learning. With multi-language support and robust data security features, it helps users generate reports and essays effortlessly.

PDF Parser transforms PDFs and image files into structured data. Users define custom fields (string, number, date, boolean) and AI extracts context‑aware content. Outputs clean JSON/CSV, supports batch processing, and processes securely over HTTPS without storing uploads.

Squirro consolidates structured and unstructured data using knowledge graphs and AI guardrails, delivering secure, compliant analytics for regulated sectors. It offers document intelligence, semantic search, real‑time compliance monitoring, and privacy controls, enabling faster decisions and reduced operational costs.

AskYourPDF lets users upload PDF or text files to ask questions and retrieve instant answers. It instantly summarizes long documents, supports keyword search across multiple files, and offers a shared library with mobile, Chrome, and plugin access, all GDPR‑compliant.

selfGPT converts PDFs, text, and images into searchable AI knowledge. Users upload documents; the system indexes content for quick, retrieval‑augmented queries, auto‑summaries, and actionable insights, saving time for professionals, researchers, students, and creators.

aiPDF lets users upload PDFs, EPUBs, URLs or YouTube links to extract data, summarize content, and ask context‑specific questions. It returns source‑backed answers, supports any file size, auto‑deletes uploads, and offers response exports.

Chat PDF AI lets users upload PDFs up to 50 MB, then chat with GPT‑4o or Claude‑3 to ask questions, summarize, extract text or tables, translate, and generate mind maps. It keeps documents encrypted and private.

Doctly AI converts PDFs, Word, scans, and images into structured JSON, CSV, Markdown, or XML via REST API or webhooks. It handles complex layouts, tables, and forms without manual training, and offers end‑to‑end encryption, SOC 2, HIPAA, GDPR compliance, and deployment.

qomplement converts PDFs, images, spreadsheets, emails and scans into structured, ERP-ready data using OCR, computer vision, and LLMs; it extracts and validates fields, auto-discovers schemas, supports batch processing, handwritten text, and direct Excel/ERP exports.

ChatDOC lets users ask questions about PDFs, DOCs, EPUBs, MD, and TXT while preserving layout, tables, formulas, and images. It returns answers with source citations, supports 25+ languages, and offers API/SDK integration.

Memo AI is a workspace that ingests PDFs, videos, websites, and text, extracting structured content into semantic chunks with vector embeddings for hybrid keyword‑semantic retrieval. It generates flashcards, tests, summaries, mind maps, and supports active‑recall, spaced repetition, multilingual AI models.

ScrapeGraph AI is an automated web scraping tool that extracts structured data from various sources using natural language prompts. It supports multiple programming languages and adapts to website changes, producing clean data for analytics and AI training.

ChatPDFGPT is an AI tool that enables natural language interaction with PDF documents, allowing users to extract insights, summarize content, and navigate easily. It supports multiple languages and facilitates collaboration, making it useful for students and professionals.

ChatDocs lets users upload PDFs, DOCX, TXT, PPT, websites, and YouTube videos to chat with GPT‑4 for document summarization, extraction, and Q&A. It retains chat history, supports multi‑document workflows, aiding researchers, legal, project managers, and writers.

Curiosity unifies enterprise data into a knowledge graph, enabling AI‑powered search and assistants across legacy and modern systems. It deploys on‑premises for GDPR compliance, offers fast hybrid search, and reduces response times and error rates.

Instabase converts large document packets into structured, auditable data using AI agents for cross‑document validation and multi‑step business rules. It dynamically selects models for speed and accuracy, supports privacy, audit trails, and scalable automation.

PDF Pilot uses AI to extract structured data from PDFs, invoices, receipts, and contracts. Users upload documents and instantly receive clean CSV/Excel exports, supporting purchase orders, delivery notes, and onboarding packets while ensuring encryption and rapid setup.

Nex AI ingests, validates, and streams structured and unstructured data to AI agents or ERP/CRM systems, offering compliance checks, risk flagging, fraud detection, instant alerts, audit trails, and secure API integration with multiple data platforms.

PortableDocs is an AI tool that allows users to engage with PDF documents through conversation, enabling quick extraction of insights and summarization. Its intuitive interface and advanced algorithms enhance productivity, particularly for technical, legal, and academic documents.

ContextClue transforms CAD, PDF, ERP and planning files into queryable knowledge graphs, enabling semantic search and automated generation of SOPs, compliance reports, and digital‑twin data. Ideal for manufacturing, R&D, and maintenance teams to streamline specification access and part reuse.

kOS lets users import PDFs and annotate them in one interface. An AI layer answers questions about any part of the document, distinguishes user vs. web content, auto‑generates slide decks and citation exports—all locally for privacy.

LightPDF lets users chat with PDFs, Word, Excel, PowerPoint, EPUB, performing OCR on scanned documents and handling multiple files per session. It returns plain text, lists, tables or markdown with citations, supporting over 100 languages in a cross‑platform interface.

AI Mind Mapper turns selectable‑text PDFs into structured mind maps, summarizing content into hierarchical nodes. It serves academic, business, and personal documents, providing quick visual overviews while keeping all data private.

Bard PDF processes PDFs via URL, returning summaries, tables, images, and text snippets. It supports natural‑language Q&A, customizable output length, section focus, and collaborative review, aiding researchers, educators, and professionals with quick insights.

PrivacyDoc analyzes PDFs, txt, csv, and json files up to 10 MB, delivering AI‑driven summaries, extracts, and structured insights. Users authenticate via Google, and files are deleted after logout, ensuring privacy. Drag‑and‑drop uploads provide instant query responses.