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Modern document sharing tool delivering real-time viewer tracking, dynamic recipient watermarking, and granular link revocation.
Swiss-engineered cloud storage and secure sharing platform employing zero-knowledge, client-side AES-256 encryption.
Military-grade disk encryption software providing transparent on-the-fly AES-256, Serpent, and Twofish volume security.
On-premises content collaboration platform combining file storage, real-time document editing, communication, and granular compliance controls.
Zero-knowledge personal and team cloud storage developed by the scientists behind Proton Mail, governed by Swiss privacy laws.
Canadian end-to-end encrypted cloud storage platform with zero-knowledge architecture and strict privacy compliance.
Multi-platform software that creates client-side encrypted vaults inside Dropbox, Google Drive, iCloud, or OneDrive without vendor lock-in.
The definitive desktop and cloud PDF solution offering permanent cryptographic redaction, PDF/A archiving compliance, and 256-bit password encryption.
Market-leading electronic signature platform providing tamper-evident certificates of completion, eIDAS compliance, and extensive contract management.
Enterprise virtual data room offering UNshare DRM protection, dynamic watermarking, and bank-grade auditability for critical financial transactions.
Enterprise cloud management platform offering granular access permissions, Box KeySafe customer key management, and extensive regulatory certifications.
SendNow is a cloud-based secure document sharing and virtual data room platform designed for financial professionals, startups, venture capital firms, investment bankers, fundraising teams, consultants, and B2B sales organizations. The software enables users to upload confidential files, generate controlled sharing links, create branded MicroSite data rooms, and monitor recipient engagement through page-level analytics, viewing duration, repeat visits, and real-time notifications. Supported file formats include PDF, DOCX, XLSX, CSV, images, MP4, and selected PowerPoint presentations. Security capabilities include AES-256 encryption at rest, TLS 1.3 transport encryption, password-protected links, email verification, download restrictions, expiration dates, view limits, viewer-specific watermarks, NDA acceptance gates, access whitelisting, and link revocation. SendNow also provides timestamped activity logs, CSV exports, custom domains, and webhook-based automation. Its infrastructure documentation identifies US-hosted services, Vercel, Cloudflare, encryption-key rotation, DDoS protection, and privacy controls aligned with GDPR and CCPA requirements. The platform supports integrations with Slack, HubSpot, Salesforce, and external applications through webhooks. A remote Model Context Protocol server enables compatible AI assistants, including ChatGPT and Claude, to manage documents, create sharing links, organize data rooms, and retrieve engagement analytics using OAuth 2.1 authentication. SendNow offers a limited 24-hour free trial and paid document-sharing subscriptions. MicroSite subscriptions are billed separately. Custom commercial arrangements can be discussed with its team. Public security documentation makes compliance claims but does not establish independent SOC 2 Type II or ISO 27001 certification.
age is a simple, modern file encryption tool using X25519 key exchange and ChaCha20-Poly1305, a clean replacement for GPG.
TransferNow is a secure large-file transfer and file-sharing platform for individuals, professionals, and enterprises. It provides SSL/TLS encryption, AES-256 encryption at rest, password-protected transfers, antivirus scanning, optional customer-provided encryption keys, and GDPR-focused data protection.
NOS Workspace keeps documents and HTML reports together. Click preview text to fix a heading or sentence, then sign in to save and share a reading link. Readers need no account and see saved corrections when they reopen the link.
Portable Linux operating system that routes all internet connections through Tor and leaves zero trace on local hardware.
State-of-the-art cryptographic VPN protocol running in the Linux kernel for secure point-to-point tunnels.
Frictionless file transfer service allowing users to quickly send up to 2 GB for free, or up to 200 GB with password protection and custom branding on paid plans.
Stirling-PDF is a powerful open-source self-hosted PDF tool with 50+ operations — merge, split, compress, OCR, convert, sign — no data leaving your server.
LibreSign is a free, open-source electronic signature app for Nextcloud enabling legally binding document signing on fully self-hosted infrastructure.
Outline is a fast, collaborative open-source knowledge base with rich editor, nested docs, full-text search, and Slack integration.
PDF.js is Mozilla's open-source PDF viewer built with HTML5 Canvas, powering Firefox's built-in viewer and embeddable in any web app.
OpenPGP.js implements OpenPGP in JavaScript for browser-native end-to-end encryption, used in production by ProtonMail.
Syncthing syncs files between computers in real time using direct P2P with TLS encryption — no cloud, no server, all data stays on your devices.
ONLYOFFICE is a free, open-source office suite for docs, spreadsheets, and presentations with real-time collaboration and full DOCX/XLSX/PPTX compatibility.
DocuSeal is an open-source document signing platform with visual form builder, e-signatures, and automated workflows that can be fully self-hosted.
Bitwarden is a free, open-source password manager storing encrypted passwords in a self-hostable vault with AES-256 zero-knowledge architecture.
Formstack Sign provides legally binding e-signatures for HR with in-person signing, multi-party routing, and 100+ Zapier integrations.
DocHub is a PDF editor and e-signature tool with deep Google Drive integration enabling document editing and signing without leaving your workflow.
Smallpdf processes 2 million+ documents daily with 21 PDF tools covering compression, conversion, editing, merging, splitting, and e-signing.
DocuWare is an enterprise DMS with AI-assisted indexing, workflow automation, and compliance features used by 18,000+ organizations.
Virtru provides data-centric encryption for email and files keeping data protected wherever it travels with persistent access controls and revocation.
Egnyte is an enterprise content platform combining file sharing, collaboration, and governance for life sciences, AEC, and financial services.
Zoho Sign provides legally binding signatures with bulk sending, Aadhaar eSign, and deep integration across 40+ Zoho apps.
Signaturely provides simple legally binding e-signatures with public signing links, templates, and team accounts at SMB-friendly pricing.
PandaDoc combines document creation, e-signatures, and contract analytics used by 50,000+ organizations.
Dropbox Sign provides legally binding e-signatures with reusable templates, multi-party signing, and tamper-evident audit trails.
VDR is a publicly accessible source-code project by GitHub user ankoma88 that implements a virtual data room for storing, distributing, and reviewing documents. It supports PDF, DOC, XLS, PPT, JPG, and PNG files. Authorized users can download uploaded documents, while users without download permission can view PDF-converted documents containing confidentiality watermarks. Users can also ask questions and add comments on uploaded documents. The application uses Java EE 7, Enterprise JavaBeans, JavaServer Faces, PrimeFaces, EclipseLink, Bootstrap, MySQL, and Maven. It was tested on GlassFish 4.1 and requires an OpenOffice-compatible document conversion service accessed through JODConverter on port 8100. Document storage must be configured manually in the application's Constants class. The project is relevant to developers exploring self-hosted document review and virtual data room implementations, including workflows resembling due diligence and confidential document distribution. However, its README does not establish production readiness, modern encryption guarantees, formal security certifications, or comprehensive deployment automation. The repository was archived on April 13, 2025, and is read-only. No recognized open-source license was confirmed from the repository listing, so legal permission to reuse, modify, or redistribute the code should not be assumed merely because it is publicly accessible.
Enterprise-grade open-source antimalware toolkit for file scanning, mail gateways, and server endpoint defense.
The global standard for cryptographic signing, public-key verification, and asymmetric file encryption.
Cross-platform open-source password manager storing all credentials in a locally encrypted AES-256 database.
European zero-knowledge cloud storage platform with audited open-source code and client-side AES-256 file fragmentation.
Modern document sharing platform with custom domain branding, viewer access gates, and page-by-page engagement tracking.
Free, lightweight utility for packaging and encrypting multi-file archives in 7z and ZIP formats with 256-bit AES cryptographic protection.
