Dropbox Sign

Est. 2011 HQ San Francisco, California, USA Updated 2026-02-10
What it is

What It Does

Dropbox Sign (formerly HelloSign) is an electronic signature service for sending, signing and managing legally binding documents. It carries a tamper-evident audit trail on each signature request and offers an eSignature API for embedding signing into other applications. Signatures are legally binding under the US ESIGN Act. It is a product of Dropbox, which acquired HelloSign in 2019.

What We Found

HelloSign was founded in 2011 (originally as HelloFax) and acquired by Dropbox for $230M in 2019, then rebranded to Dropbox Sign. The service integrates with Dropbox, Salesforce, Slack, Microsoft Word, OneDrive, Outlook, Google Docs/Drive/Calendar (integration list verified on the vendor’s integrations page). It is general-purpose document signing rather than a legal-specific product, though it is widely used for legal documents.

What We Haven’t Verified

  • Current pricing tiers.
  • This is a horizontal e-signature tool, not legal-tech-specific.
  • Feature claims and workflow mappings are based on what the vendor and third-party listings publish — not hands-on testing or practitioner feedback.

Company Info

  • Sector: Legal Tech / e-signature
  • Founded: 2011 (as HelloFax)
  • HQ: San Francisco, California, USA
  • Parent: Dropbox (acquired HelloSign for $230M in 2019)
Integrations

Platforms Dropbox Sign integrates with. Depth — where curated — reflects how native the connection is. Uncurated entries render without a depth dot.

Deep — bi-directional API Medium — one-way sync / webhook Shallow — middleware / Zapier-class

Community ratings
Alternatives

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