Dudle - 2026 Pricing, Features, Reviews & Alternatives

Dudle is a free, browser-based document toolkit covering the full PDF and document workflow without installation or account creation. Core capabilities include 30 PDF operations — merge, split, compress, compare, annotate, watermark, fill forms, eSign (draw, type, or upload signature with audit trail), AES-256 encryption, true content-stream redaction, OCR, image extraction, and conversion to and from Word, Excel, PowerPoint, Image, PDF-A, URL, HTML, and Markdown. Files are processed server-side and auto-deleted within one hour of upload. No third-party advertising, analytics trackers, or AI model training on user documents applies to any tier.

Dudle's AI Studio extends the platform with document-grounded intelligence across legal, academic, financial, government, and healthcare use cases. AI Document Chat returns cited answers with page numbers. Additional tools include Research Synthesis across multiple documents, Contract Analyser (risks, obligations, red flags), Financial Extractor (figures, ratios, and tables exportable to CSV), Risk Identifier (flags risky language by severity), and PDF Translation into 70+ languages with layout preserved. Study-focused tools generate Flashcards, Quizzes, adaptive Knowledge Tests, Mind Maps, Timelines, Argument Maps, Concept Explainers, Glossaries, and Study Notes directly from uploaded documents. A Web Search feature reads full PDF content from results with AI-powered relevance ranking. A Prompt Library holds curated and user-saved prompt packs.

Dudle supports cloud import from Google Drive and OneDrive, and stores documents locally in the browser until sign-in. Free usage requires no signup and imposes no watermarks or subscription for core tools, with a 50 MB upload limit. Paid plans (Pro at 9 EUR/month for individuals; 16 EUR/seat/month for teams such as labs, study groups, and office desks) unlock higher AI answer allowances (up to 2,000/month), larger libraries (up to 150 GB), synced and shared workspaces, and export formats including CSV, Anki, and Word.