Subnoto: Confidential E-Signature Software
Subnoto helps freelancers and professional teams manage the signing of contracts with a focus on data privacy. It is designed for organizations requiring European eIDAS compliance and confidential document processing.
At a glance
- Category
- Operations
- Best for
- Freelancers, Legal professionals, HR managers, Notaries, Security-conscious small businesses
- Pricing
- Pricing includes a free plan (10 signatures/month), Solo at €5/month, Pro at €19/month, and Ultimate at €119/month per site. API usage is €1.00 per signature for 500 signature volumes and requires a Pro or Ultimate subscription.
- Key use cases
- Confidential Contract Signing, API-Driven Signature Workflows, Passwordless User Access, European Compliance Management
- Integrations
- CarboneIO, Zapier, n8n, Raycast, Google Drive import
- Official website
- subnoto.com
Subnoto is an electronic signature platform developed in France that focuses on confidentiality during the signing process. It utilizes confidential computing and trusted execution environments (TEEs) to ensure that documents remain private, including from the service provider.
The software is designed for users such as legal professionals, notaries, HR departments, and freelancers who handle sensitive agreements. It supports standard e-signature workflows, including document uploading, field preparation, and status tracking in real time.
For developers, the tool provides a REST API and SDKs to embed signing capabilities into other software. It supports passwordless login via passkeys and biometric authentication to reduce reliance on traditional passwords.
Buyers should confirm if current eIDAS compliance levels meet their specific legal requirements, as advanced and qualified electronic signatures are planned for 2026.
Key Features
Uses trusted execution environments (TEEs) to keep data private during active processing.
A system design where the provider cannot access unencrypted document data.
Supports login via passkeys, fingerprints, and Face ID.
Provides TypeScript and Python SDKs and an OpenAPI specification for software integration.
Allows AI assistants like Claude and Cursor to interact with the signature workflow.
Maintains immutable records of document activity for compliance purposes.
Use Cases
Managing the signing of sensitive agreements where data privacy is a priority.
Integrating electronic signature capabilities into custom business applications.
Implementing biometric or passkey-based authentication for document signers.
Using a platform hosted in France that aligns with eIDAS and GDPR standards.
Best For
Integrations
Pricing
Pricing includes a free plan (10 signatures/month), Solo at €5/month, Pro at €19/month, and Ultimate at €119/month per site. API usage is €1.00 per signature for 500 signature volumes and requires a Pro or Ultimate subscription.
FAQ
Yes, it is designed with European compliance in mind and is legally valid in Europe. Advanced and qualified electronic signatures are planned for 2026.
Subnoto offers a Free plan, a Solo plan for €5/month, a Pro plan for €19/month, and an Ultimate plan for €119/month per site.
Subnoto supports passwordless authentication via passkeys, fingerprints, and Face ID.
Yes, it provides a REST API with OpenAPI specifications, as well as TypeScript and Python SDKs for developers.
Source category: Operations
Source subcategory: Electronic Signature
