The short answer: Dropbox Sign (formerly HelloSign) offers a clean signing experience with tight Dropbox integration and a limited free tier. OpenSign™ provides unlimited free self-signing, open-source code and self-hosting — the better fit when cost and data ownership matter.
Feature comparison
| Capability | OpenSign™ | Dropbox Sign |
|---|---|---|
| Free plan | Unlimited self-signing | Limited monthly |
| Open source | Yes | No |
| Self-hosting | Yes | No |
| Templates | Yes | Paid tiers |
| API | Yes | Yes (paid) |
| Cloud-storage integration | Self-host any storage | Dropbox-native |
Choose OpenSign if…
- You want unlimited free signing and no lock-in.
- You need to self-host for compliance.
- You value open source.
Choose Dropbox Sign if…
- Your team lives in Dropbox and wants native integration.
Verdict
For most users seeking a free, transparent and self-hostable signer, OpenSign wins. See all options in DocuSign alternatives.
Ready to try it? Create a free OpenSign account and start signing documents in minutes — no credit card required. Prefer to run it yourself? OpenSign is 100% open source on GitHub.