The short answer: OpenSign™ is self-hosted eSignature software you can deploy on your own servers or cloud account. Because it's open source, signed documents and audit data never leave your infrastructure — ideal for GDPR, HIPAA and strict internal data-residency requirements.
Why self-host your eSignature platform?
- Data residency — keep contracts in a specific region or private network.
- Compliance — meet GDPR, HIPAA and security policies that forbid third-party clouds.
- No vendor lock-in — you control upgrades, retention and access.
- Cost at scale — no per-seat or per-document licensing; pay only for infrastructure.
- Auditability — open-source code you can review line by line.
What you can self-host
The full OpenSign product: self-signing, signature requests, templates, bulk send, multi-user teams, SSO, the audit trail and the REST API — all running on hardware you control.
How to deploy
- Clone the repo from GitHub.
- Deploy with Docker, or to AWS, GCP, Azure or DigitalOcean.
- Connect your database, object storage and email provider.
- Configure SSO and domains.
- Invite your team — every signature now stays in-house.
Full instructions are in the documentation.
Self-hosted vs hosted cloud
| Self-hosted | OpenSign Cloud | |
|---|---|---|
| Data location | Your servers | Managed cloud |
| Maintenance | You | OpenSign |
| Cost | Infrastructure only | Free tier + paid plans |
| Best for | Compliance & control | Speed & convenience |
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.