Secure. Send. Sign.
Privacy-friendly e-signatures made in France.
Upload securely
Confidential computing keeps documents private at all times—even while in use, and even from us.
Prepare documents
Add recipients and customize documents with an intuitive PDF editor.
Collect signatures
Speed document completion with status tracking and automatic reminders.
Streamline your signature process
Our intuitive interface, secure collaboration features, and API are all designed to help you complete agreements faster.
Secure, seamless signatures
Send and sign documents quickly. Browse and search confidential workspaces that only designated team members can access.
Frictionless login
100% passwordless for safer, speedy access—and less time wasted on account resets.
Efficient workflows
Real-time status tracking and automatic notifications make staying ahead of deadlines a breeze.
Designed with European compliance in mind
Electronic signatures tailor-made for most agreements and contracts. Legally valid in Europe. eIDAS advanced and qualified electronic signatures planned for 2025.
Integrates with the tools you already use
No-code integrations for import, export, and notifications. Build secure signature automation into your workflows.
End-to-end privacy, future-proof security
Security is the DNA of Subnoto. We deliver top-grade security with confidential computing and advanced cryptographic methods so you can focus on completing agreements faster.
Truly private e-signatures
Use of trusted execution environments (TEEs) means privacy from unauthorized parties—even during processing, and even from Subnoto.
Tamper-proof signing record
Enclaved audit trails of document activity ensure continuous, immutable access records for seamless compliance.
Post-quantum cryptography
Quantum computing advancements mean that current encryption algorithms will cease to be effective. Subnoto layers quantum-resistant encryption algorithms on top of standard encryption methods to keep your documents and signing activity secure—even in a post-quantum future.
Hosted in France 🇫🇷
Your data is securely stored in encrypted form and processed within secure enclaves on our own servers, ensuring maximum privacy and compliance with European standards.
Q&A
We answer most frequently asked questions.
Confidential computing is all about keeping your sensitive data safe, no matter where or when it's being used. Data can exist in three states: at rest, in transit, and in use. While most security measures focus on protecting data when it's stored or sent, confidential computing takes it a step further by securing your information even when it's actively being processed. Thanks to secure enclaves-think of them as ultra-secure vaults-Subnoto makes sure your data remains private, protected, and only accessible to you, no matter what.
Many e-signature and contract management tools look simple on the surface but often fall short when it comes to security or speed. They store sensitive data on external servers, introducing potential risks, or rely on outdated workflows that slow you down.
Subnoto changes the game by applying confidential computing to secure every step of the contract lifecycle and designing modern signature workflows built for speed.
Passwords are not only a pain to remember but also insecure: they can be phished or stolen from servers. Subnoto is the first e-signature solution to fully embrace passwordless login methods. Passkeys and magic links provide a password-free experience that’s not only phishing-resistant but also more convenient.
We believe compliance doesn't have to be complicated. Subnoto makes it easy to stay compliant with audit logs, secure user permissions, and real-time status tracking. Thanks to confidential computing, sensitive information is only accessible to the right people—and only when it should be. No more digging through endless folders or wondering if you've met regulatory requirements. With Subnoto, you get a clear, transparent process that makes internal audits and external reporting feel effortless.
At Subnoto, we’re not just offering another e-signature tool—we’re rethinking the entire contract experience to make it smarter, safer, and faster.
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Security without compromise: With confidential computing powering our platform, your data is secure at every stage—even while it’s being processed. Your access to Subnoto is also secure and phishing-resistant thanks to passwordless login methods like passkeys.
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Faster, frictionless workflows: Our streamlined approach removes unnecessary steps so your contracts move at the speed of your business.
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Full transparency: Stay in control with real-time updates, automatic compliance checks, and easy-to-read audit trails.
Subnoto isn’t just about signing faster—it’s about working smarter, building trust, and staying ahead. Take your contract management to the next level.
We’re here to support you, whether you’re just getting started or need expert advice.
Send us a message at [email protected] and we’ll get back to you quickly.
