With nearly 9,000 GitHub stars and adoption by over 60,000 companies across 100 countries, Papermark is the open-source DocSend alternative that turns document sharing into a data-rich conversation between you and your viewers. Every shared document generates page-by-page analytics showing exactly which pages capture attention, how long viewers spend on each section, where they drop off, and whether they return for a second look, with real-time notifications the moment a document is opened. Virtual data rooms support unlimited folders with drag-and-drop organization, bulk uploads, granular per-viewer permissions, dynamic watermarking that stamps each page with the viewer's identity, and NDA gating that requires agreement before access. Custom branding applies your logo, colors, and custom domain to every shared link and download page, while email verification and password protection add authentication layers. The AI Data Room Copilot lets viewers chat with uploaded documents, ask questions, and receive contextual summaries directly within the data room interface. The developer platform exposes 43 REST API operations covering data rooms, documents, folders, links, visitors, and analytics, with an MCP server for AI agent integration and a CLI for automation. Built on Next.js with TypeScript, Prisma ORM, PostgreSQL, NextAuth.js authentication, and shadcn/ui components. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPLv3 licensed.

ProjectSend gives every client a private, signed-in page on your own server where only the files you assigned to them appear, so contracts, photo shoots, and quarterly reports skip the third-party file-sharing service. You upload once, then share a file or a whole folder with one client, a group, or anyone holding a public link, with an optional expiry date or download limit. Clients search, preview, and download files one by one or as a zip, whole folders included, comment on a document so questions stay beside it, and send files back within the quota you set. Uploads of up to 2 GB travel in resumable pieces, so a dropped connection pauses a transfer instead of ruining it. Folders, categories, custom client fields, and linked file versions keep a growing library tidy, while roles with granular permissions let staff work without becoming administrators. The activity log and download history record who received what and when, and the log exports to CSV. Sign-in works with email and password, LDAP, or Google and Microsoft accounts, with optional two-factor authentication. Your logo, watermark, themes, and editable email templates carry your brand, and the interface is translated into 16 languages. Optional virus scanning quarantines suspicious uploads, and a REST API with scoped tokens automates uploads, sharing, and account management. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-2.0-or-later licensed.

Sending a client a big file should not mean renting seats on someone else's cloud, and PlikShare turns your own server into a file sharing platform with unlimited users, unlimited workspaces, and no per-seat pricing. Its central idea is the box: a controlled gateway between your folders and the outside world, where you invite collaborators, mint anonymous links, and decide who may upload, download, preview, or drop files into an upload-only inbox. Quick share links carry custom slugs, expiry dates, passwords, and download caps, and every box can embed into another website as a live widget whose permissions update the moment you change them. Storage is your choice per workspace, from the server's own disk to S3, Cloudflare R2, Backblaze B2, Azure Blob, Google Cloud Storage, or any S3-compatible server, and each storage picks one of three encryption modes, including full encryption where names and contents are sealed with keys derived from each user's password. Bulk uploads arrive as a single zip that rebuilds its folder structure on landing, bulk downloads assemble from an explorer tree, and previews cover video, audio, PDFs, Markdown with diagrams, and even the inside of zip archives. Single sign-on through multiple OIDC providers, granular admin roles, an optional MCP server for scoped AI agents, and OCR or chat integrations round out a platform that stays lean on a small server. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.