Skip OpenSign. Get DocuSeal: The Open-Source E-Signature Alternative.
DocuSeal is an open-source signing platform that gives you what OpenSign doesn't: full control over your documents, no per-signature fees, and GDPR-compliant hosting by default. 4,500+ teams monthly choose open-source alternatives. Here's why.
Why DocuSeal is the Best OpenSign E-Signature Alternative
OpenSign locked your documents in the cloud. DocuSeal + Opsily gives you open-source + managed hosting: the best of both worlds.
Zero Per-Document Fees
With OpenSign you pay per signature or document processed. DocuSeal on Opsily charges one flat rate: $20 to $100/month depending on team size. Unlimited documents. Unlimited signers. No overage math, no surprise invoices.
Your Data Stays Yours
OpenSign stores documents on their servers. DocuSeal on Opsily keeps everything on German servers under GDPR. You own the database. You control the backups. You can audit the entire signing flow.
No Vendor Lock-In
OpenSign is a cloud-only SaaS. DocuSeal is open-source: download the code, run it anywhere, export all your data at any time. Your documents aren't trapped in a proprietary system.
Built for teams who need reliability
Trusted by fast-moving teams
How DocuSeal Works
From template to signed contract in minutes. No complex workflows, no API learning curve.
Choose Your App
Select an app to get started.
Upload or Create a PDF Template
Import a contract, form, or NDA. DocuSeal lets you add signing fields, date fields, and initials boxes directly to the PDF.
Send to Signers
Share a signing link or bulk-send invites. Signers authenticate with email or phone. No DocuSeal account required.
Multi-Party Signing (Optional)
Route documents to multiple signers in sequence or parallel. Track who signed, when, and from where.
Download Signed Document
Audit trail embedded. Original signature intact. Archive to your system or keep in DocuSeal for instant retrieval.
DocuSeal vs. Other OpenSign Alternatives
OpenSign was a promising open-source project, but development slowed and deployment complexity turned many teams away. Here's how DocuSeal compares:
DocuSeal Strengths
- Active development: Weekly updates, community-driven feature requests
- Easy hosting: Works on Docker, one-click deploy on Opsily
- Legally binding: Fully certified for ESIGN Act (USA), eIDAS (EU)
- PDF-native: Upload any PDF, no template building required
- API-first: Automate everything, signing, routing, webhooks
OpenSign vs. DocuSeal
OpenSign focused on the UI/UX but left infrastructure and scaling as afterthoughts. DocuSeal started with hosting and deployment in mind. For teams needing a production-grade, maintainable solution, DocuSeal wins.
Other Open-Source Alternatives?
Documenso is interesting but early-stage. Mattermost integrations are limited. LibreOffice has signing, but no workflow. DocuSeal is the only open-source e-signature platform designed for business from day one.
EUR 800 a year for tools that used to cost us multiples of that. We replaced HubSpot, Make.com, and our password manager with self-hosted apps on Opsily. One provider, one fee.
Franz Koller
Co-Founder · Joy
Why Teams Switch From OpenSign to DocuSeal
A side-by-side look at what you get with each platform.
Comparison based on latest GitHub commits and public documentation (June 2026).
Trust & Compliance Built In
DocuSeal is certified and compliant. Your data is protected by default.
SOC 2 Type II Certified
Annual audits verify security, availability, and confidentiality controls match enterprise standards.
GDPR Compliant
Documents and signatures stored on German servers. Data processors certified. GDPR Data Processing Agreement included.
HIPAA Compatible
DocuSeal supports HIPAA-compliant workflows. Self-hosted deployments can achieve full HIPAA BAA on request.
eIDAS & ESIGN Act
Signatures are legally binding in EU and USA. Compliant with digital signature regulations and electronic transaction laws.
256-Bit AES Encryption
All documents encrypted at rest. TLS 1.2+ in transit. Full audit trail of who accessed what and when.
Simple, Transparent Pricing
DocuSeal on Opsily costs one flat rate per month. Unlimited documents, unlimited signers, no hidden fees. All plans include GDPR-compliant German hosting.
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Save per year vs. OpenSign variable fees
Team of 5 processing 2,000 documents/year. OpenSign charges $0.20-2.00 per overage after the base plan. DocuSeal: flat $40/month ($480/year total).
Calculate your savingsFrequently Asked Questions
Yes. DocuSeal's source code is on GitHub under the AGPL 3.0 license. You can download it, run it on your own server, fork it, and modify it. Opsily provides managed hosting if you want us to handle infrastructure, updates, and compliance. Either way: your data stays yours.
What our customers say
Teams across the EU run their stack on Opsily. Here is what that looks like in practice.
EUR 800 a year for tools that used to cost us multiples of that. We replaced HubSpot, Make.com, and our password manager with self-hosted apps on Opsily. One provider, one fee.
Franz Koller
Co-Founder • Joy
We were paying per user on everything and it added up fast. Now we run five apps for less than one of those old plans. My finance team finally stopped asking questions.
Elise
Head of Operations
Wanted to use n8n for ages but the self-host part always stopped me. Opsily just handled it. Got the power without becoming an IT person overnight.
Federica B.
Automation Consultant
Stop Overpaying for E-Signatures.
DocuSeal on Opsily: open-source, compliant, and fixed-price. No vendor lock-in. Your data, your rules.