OpenSign self-hosted: what's the real cost?
It looks free. The infrastructure and maintenance? They're not. Here's what you're actually signing up for—and a managed path that costs less.
OpenSign self-hosted: what it actually costs
Both are open-source AGPL-3.0. Both let you e-sign documents, collect signatures, and run everything on your own servers. OpenSign (7.1K GitHub stars) is simpler. DocuSeal (18.7K stars) is more complete. But they come with a catch.
What you need to run it yourself
Infrastructure: Docker or Docker Compose, PostgreSQL or MongoDB, an Ubuntu/Linux server, reverse proxy (Caddy or Nginx), SSL certificates, SMTP for sending emails.
Knowledge: You need to understand containerization, databases, networking, and Linux command line. If you hire someone, that's $100-200/hour.
Time (month one): 8-16 hours. Download Docker. Set up the database. Configure SMTP. Get SSL working. Debug OAuth if you need SSO. Troubleshoot MongoDB connection pools.
Time (every month after): 4-6 hours. Security patches. OS updates. Monitor disk space. Restart containers if they crash. Backup strategy. Restore from backups (if something breaks).
That's your baseline before a single document is signed.
Real monthly cost of self-hosting OpenSign
Infrastructure ($35-70/mo) plus DevOps time at $100/hr = $480-800/month. Breakeven happens at 70-140 documents/month. Below that? You're paying more for self-hosted than for managed.
The costs nobody talks about
Security patches: Every month, new Docker images, Node.js updates, and database patches arrive. You deploy them or fall behind.
Database growth: MongoDB/PostgreSQL need monitoring. Your signing documents eat disk space. At 10,000+ docs, queries slow down. You start tuning indexes or migrating to a bigger server.
Backup strategy: If your server dies, so does every document your customers signed. You need automated backups to AWS S3 or Google Cloud. That's another integration to maintain.
Scaling problems: CPU-intensive PDF processing (especially with DocuSeal's form builder) doesn't scale on a single server. Redis queues, worker processes, load balancing. That's DevOps territory.
AGPLv3 compliance: If you modify the code (and most teams do), you must release your changes publicly. Not complying means legal risk. Large companies avoid this headache entirely.
Email delivery: Self-hosted SMTP is hard. Bounces, spam filters, SPF/DKIM/DMARC records. A single misconfiguration means signing invites go to junk. Your users don't get them.
Each of these is a small problem until you have 500+ documents in flight. Then they're all your problem at once.
Why Opsily's managed DocuSeal beats self-hosted OpenSign
Same features. None of the DevOps tax.
Zero setup. Zero maintenance.
Sign up. Start sending documents. We handle Docker, databases, certificates, patches, backups, and scaling. You focus on contracts, not infrastructure.
GDPR built in.
Your data lives in Frankfurt, Germany. ISO 27001-certified data centers. No US jurisdiction. No transfer hassles. Compliance is automatic.
Always up to date.
Security patches deploy automatically. You never manage a database. Scaling happens behind the scenes. You get new features without lifting a finger.
Built for teams who need reliability
How Opsily handles your DocuSeal
From signup to signing in three steps.
Pick Small, Medium, Large, or Unlimited. No credit card required to test. Instant account creation.
Your instance spins up in Frankfurt within minutes. Fully configured, SSL secured, database ready. No setup required.
Upload PDFs, add signature fields, send to signers. Manage audit trails, templates, and team access. We manage everything else.
Pick Small, Medium, Large, or Unlimited. No credit card required to test. Instant account creation.
Your instance spins up in Frankfurt within minutes. Fully configured, SSL secured, database ready. No setup required.
Upload PDFs, add signature fields, send to signers. Manage audit trails, templates, and team access. We manage everything else.
Choose your plan and sign up
Pick Small, Medium, Large, or Unlimited. No credit card required to test. Instant account creation.
We deploy DocuSeal for you
Your instance spins up in Frankfurt within minutes. Fully configured, SSL secured, database ready. No setup required.
Start signing documents
Upload PDFs, add signature fields, send to signers. Manage audit trails, templates, and team access. We manage everything else.
Simple, transparent pricing
All plans run in Frankfurt data centers with automatic backups, GDPR compliance, and zero setup required. Switch plans anytime.
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Trust and compliance
Your data. Your rules. No hidden jurisdictions.
GDPR Compliant
Data stored in Frankfurt, Germany. Full GDPR compliance. No US data transfer.
German Infrastructure
Hosted in Frankfurt on EU-based data center infrastructure with certified security standards.
No Vendor Lock-in
Export your documents anytime. Self-hosted same features. Open-source foundation. Your choice.
Automatic Updates
Security patches and feature updates deployed automatically. You focus on documents, not maintenance.
Common questions about self-hosting vs. managed
Everything. Your instance runs on Frankfurt servers with automatic daily backups, SSL certificate renewal, security patches, database maintenance, and scaling. You get unlimited team members, document templates, multi-signer workflows, API access, and email support. The only thing you manage is uploading documents and sending signing invites. With self-hosted, you manage all the infrastructure and maintenance.
Stop maintaining. Start signing.
Managed DocuSeal from Opsily. No setup. No updates. No downtime. Just e-signatures that work.