Developer-friendly e-signature with a widely used embedding API, formerly HelloSign.
Dropbox Sign, the product formerly known as HelloSign, is an e-signature platform with two faces: a clean, simple signing experience for everyday agreements, and an API that developers embed to put signature flows inside their own products — signing a contract without ever leaving the app that generated it. SMBs use the web product for offer letters, NDAs, and sales agreements; product teams use the API when signatures are part of their own user experience rather than a back-office step.
Which of the capability map's modules Dropbox Sign covers — each links to the module's own page, with every tool that supports it.
| Module | Phase | Depth | Note |
|---|---|---|---|
| Win the Deal | |||
| E-Signature | Negotiate & Close | Core | legally binding signing via web app or embedded API flows |
The developer story is the historical edge: HelloSign built one of the most-adopted embedded-signature APIs before the acquisition, and the API remains the reason technical teams shortlist it against Docusign, which dominates on enterprise breadth and counterparty familiarity rather than embedding ergonomics. For straightforward signing needs it is typically the simpler, cheaper option.
Docusign wins on ubiquity, enterprise administration, and the wider agreement suite around signing. Dropbox Sign competes on simplicity, price, and a developer experience many teams prefer for embedded flows. If signing is a feature of your product, evaluate the APIs directly; if it is the final step of an enterprise sales process, counterparty familiarity often decides.
Yes — validity comes from the signature framework (consent, intent, audit trail, tamper evidence) rather than the delivery channel, and established providers build those requirements into embedded flows under laws like ESIGN and eIDAS. Specific document types with special formality rules are the exception, and that constraint applies to any provider.