Papermark
Open-source data room — secure document sharing with page-level analytics.
AGPL-3.0 alternative to DocSend. Shareable links, custom domains, watermarking, NDA gating, and Tinybird analytics — self-hostable or papermark.com cloud.
Datasite (formerly Merrill Corporation) is a major virtual data room provider focused on M&A due diligence, deal preparation, and post-merger integration, used heavily by investment banks, law firms, and private equity. It's a proprietary platform priced for large, complex transactions.
If you need secure document sharing and access control without Datasite's enterprise deal pricing, Papermark is an open-source, self-hostable alternative.
FAQ
Is there a free, open-source alternative to Datasite?
Yes. Papermark is open source (AGPL-3.0) and free to self-host.
What's the best open-source alternative to Datasite?
Papermark is a good fit for smaller transactions or internal document sharing where you don't need Datasite's full M&A-scale workflow tooling.
What are the top open-source alternatives to Datasite?
Browse all open-source alternatives to Datasite above, or explore the full Business & Finance category for more options.