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Nitro Sign

Sign Documents Securely from Anywhere

Secure, legally-binding, compliant, and affordable eSigning. Sign, send, and approve documents in just a few clicks.

No credit card required. Get started in seconds.

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why nitro sign

Simple, secure & affordable eSigning

Struggling with overpriced, overcomplicated eSign solutions? You’re not alone. That’s why Nitro Sign is easy for anyone to use while protecting you with advanced security features. All of this comes at a fair price so you can boost efficiency, stay on budget, and drive your business forward.

How Nitro Sign simplifies eSign workflows for teams and businesses of all sizes

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Competitive pricing

Say goodbye to overpriced eSigning. Nitro Sign offers affordable plans tailored to your needs, providing the functionality you want without the unnecessary costs you’re used to from our competitors.
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Trusted security

Nitro Sign ensures your documents are protected with industry-leading security measures, while maintaining eSign compliance with regulations like eIDAS, UETA, ESIGN Act, and GDPR.
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Intuitive ease of use

Nitro Sign combines an intuitive interface with straightforward deployment, making it easy for teams and organizations to get started quickly and ensure a seamless signing experience.
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Dedicated support

Get help with eSigning when you need it. From setup assistance to change management, troubleshooting, and support, Nitro's expert team prioritizes your success in safe, secure, and compliant signing every step of the way.
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No hidden fees or penalties

What you see is what you pay. Nitro Sign has no surprise charges or penalties, even if you exceed your allowance. Additional envelopes are billed at the plan rate, keeping costs predictable.
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Pay only for what you use

Nitro Sign only counts completed envelopes—documents fully signed by all parties—towards your allowance. Unlike competitors that count every sent envelope, we ensure you only pay for signatures that matter.
Key Features

Essential features for streamlined eSigning

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Smart signing & document management

Send envelopes with one or multiple documents for signature and use manual reminders to keep signers on track. Nitro Sign also provides an audit trail and a secure record of all actions taken during the signing process, offering transparency and accountability for every document. 

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Icon Customizable workflows & templates

Customizable workflows & templates

Create team-specific eSign templates with pre-defined fields, routing, and automated workflows. For larger teams, bulk send capabilities streamline signature collection, saving valuable time and effort. 

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Enhanced security & authentication

Nitro Sign offers SMS & Mail OTP authentication to ensure secure access and identity authentication for all signers. Additionally, Nitro Sign offers signing methods with ID verification, ensuring compliance with standards such as eIDAS and ZertES.

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Icon Seamless integration & automation

Seamless integration & automation

Nitro Sign’s robust API allows you to integrate eSign functionality directly into your existing workflows and applications, automating document signing and streamlining business processes. With pre-built integrations for top tools, Nitro Sign ensures a smooth, efficient experience tailored to your business needs.  

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Security and compliance you can trust 

Built with cutting-edge security at every step 

Nitro Sign is built with multiple layers of defense to protect your documents and data. Our encryption and authentication protocols ensure all information is secure during the signing process. With regular third-party audits and certifications like SOC 2, HIPAA, and ISO 27001, your data is in safe hands.

Compliant with global eSign regulations 

Nitro Sign complies with some of the strictest international standards for electronic signatures, including eIDAS, UETA, and the ESIGN Act. Whether you're in the European Union, the U.S., or beyond, we meet or exceed regulatory requirements to ensure the highest level of legal protection. 

Explore the Trust Center
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Seamless integrations and a powerful API 

Pre-built integrations with top tools 

Nitro Sign connects effortlessly with the tools you already use, enabling more efficient document workflows. With pre-built integrations for popular platforms like Salesforce, Zapier, and more, you can automate document signing without disrupting your existing processes. 

Public API for advanced needs 

For businesses with specific needs, Nitro Sign’s API allows seamless integration into your custom applications and workflows. Automate document signing, enhance operational efficiency, and integrate eSign functionality directly where you need it—all while maintaining a smooth user experience. 

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Learn more about Nitro Sign and which of our plans is right for you.

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Empower every department with simple, secure eSigning

From accelerating contracts and approvals to onboarding new hires, Nitro Sign gives teams the tools to work and digitally sign documents smarter and faster.

Human Resources

Streamline hiring and onboarding with Nitro Sign. HR teams can send offer letters, employment contracts, and policy acknowledgments for eSignature, ensuring quick and secure processing. Automate workflows and reduce paperwork, allowing your HR team to focus on building great employee experiences.
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Additional eSign resources

Learn more about seamless, secure, and compliant eSigning in our Resource Hub.

Explore our Resource Hub
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The Ultimate Guide to Electronic Signatures

Download our free guide to eSigning, packed with informative insights and expert guidance.

Download the guide
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6 Ways Your eSign Software Builds Client Trust

How to build client confidence and trust with a seamless and secure eSigning experience.

Read the article
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How to Switch eSign Providers Without Disrupting Business

If you're considering switching eSign solutions, learn how to make it easy with these five steps to success.

Read the article

What are the differences between Nitro's Sign plans?

Learn more about Nitro Sign Standard, Plus and Enterprise.

Nitro Sign Standard
Explore Nitro Sign Standard
Nitro Sign Plus
Explore Nitro Sign Plus
Nitro Sign Enterprise
Explore Nitro Sign Enterprise

eSign Core Features

Send documents for eSignature
Send multiple documents in a single package Coming Soon Coming Soon Coming Soon
Form-filling
Basic fields
Pre-filled custom fields
Manual reminders
Forward signing responsibility
Self-signing
Individual reusable workflow templates 5 Unlimited Unlimited
Parallel & sequential signing order
Track signature requests
Audit trails
Unlimited upload storage
Unlimited form creation
Custom branding
Single Sign-on (SSO)
Bulk send
Shared team workflow templates
Team documents
SMS OTP and Mail Access Code authentication (2FA)
Automatic Field Detection
Developer Account

Integrations

Cloud storage integrations (Google Drive, Dropbox, Box, OneDrive, Sharepoint)
Microsoft Word
Microsoft Outlook
Nitro Analytics
Salesforce
Microsoft PowerAutomate
Zapier

Security & compliance

eIDAS
UETA & eSIGN Act
ETA
SOC 2 Type 2

Advanced & Qualified eSignatures

ID Verification and Authentication (OTP signing methods (SES or AES))
ID Verification and Authentication (OIDC methods (AES))
ID Verification and Authentication (Remote Hash Signing methods (QES))
ID Verification and Authentication (Smart cards (QES))
eIDAS (SES-AES-QES)
ZertES (SES-AES-QES)
Nitro’s expertise enabled us to seamlessly integrate eSignatures within our digital platform. It has helped us save time for our clients and employees, enhance our digital offering, and offer a superior user experience."
Maxim D'Hoogh
Product Manager, Degroof Petercam

FAQs About Nitro Sign

What is Nitro Sign?

Nitro Sign is a secure electronic signature solution that enables individuals and organizations to prepare, send, sign, and manage documents digitally. Nitro Sign helps businesses streamline workflows, reduce costs, and maintain compliance with global standards for legally compliant electronic signatures.

How is Nitro Sign different from other eSign solutions?

Nitro Sign stands out as a cost-effective alternative to providers like DocuSign and Adobe Sign.

It offers enterprise-grade security, legally binding signatures, and transparent pricing with no hidden fees.

Nitro Sign also includes pre-built integrations with popular tools and flexible deployment options, making it a scalable solution for individuals, SMBs, and enterprises alike.

Can I try Nitro Sign for free?

Yes. Nitro Sign offers a free trial that provides full access to its eSignature features, including secure document sending, legally binding signatures, and compliance protections. This allows businesses to test the platform’s efficiency and reliability before committing to a subscription.

Are electronic signatures with Nitro Sign legally binding?

Absolutely. All signatures completed with Nitro Sign are legally binding and compliant with international regulations such as eIDAS in the EU, the U.S. ESIGN Act, and UETA. This ensures that contracts, approvals, and agreements signed with Nitro Sign are valid and enforceable worldwide.

Which tools and platforms integrate with Nitro Sign?

Nitro Sign integrates seamlessly with leading platforms including Microsoft 365, Google Drive, OneDrive, Dropbox, and Salesforce. These integrations allow teams to automate signing workflows, reduce manual tasks, and keep documents moving without leaving their existing business applications.

Can Nitro Sign handle bulk signing or recurring documents?

Yes. Nitro Sign supports templates and bulk sending, enabling teams to quickly prepare and distribute recurring agreements or high-volume signature requests. These features save time, improve consistency, and help organizations manage complex signing needs with ease.

Does Nitro Sign provide audit trails and tracking?

Yes. Nitro Sign automatically records every action taken on a document, creating detailed, tamper-proof audit trails. Real-time tracking and notifications ensure accountability, legal validity, and transparency throughout the entire signing process.

Can I use Nitro Sign on mobile devices?

Yes. Nitro Sign is accessible across desktops, tablets, and smartphones, allowing users to prepare, send, and sign documents from anywhere. The mobile-friendly design ensures a secure and seamless experience whether you’re in the office, at home, or on the go.

How secure is Nitro Sign?

Nitro Sign employs multiple layers of enterprise-grade security, including data encryption, strong authentication, and role-based access controls. The platform undergoes independent third-party audits and holds certifications such as SOC 2, HIPAA, and ISO 27001, ensuring compliance with international data protection standards.

What kind of support does Nitro Sign offer?

Nitro Sign provides dedicated support to help users succeed at every stage, from onboarding and training to troubleshooting and workflow optimization. Teams have access to expert guidance and resources, ensuring they can adopt eSignatures quickly and use them securely and efficiently across their organization.

Nitro also offers a Knowledge Hub, Knowledge Assistant AI tool, and community forum for additional Sign support.

Choose the perfect eSign plan for your needs

Subscription

Nitro Sign Standard

For individuals or small teams with basic signing needs.

$15.00
per user/month
$180.00 annually
Tax calculated at checkout
Includes Sales Tax
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Features

Click to view list of features.
  • Send packages of one or multiple documents for signature by recipients.
  • Create and fill out forms with predefined fields.
  • Track all activities in the signing workflow via the audit log.
  • Send manual reminders to signers
Subscription

Nitro Sign Plus

For teams and businesses that need to send, sign, and collaborate with greater automation. 
Volume Discounts Available
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Features

Click to view list of features.

All the features of Nitro Sign Standard, plus: 

  • Use templates with custom fields and workflows.
  • Send packages to multiple recipients at once.  
  • Require recipients to verify identity with SMS or email codes.
  • Access securely through your organization’s single sign-on system.
  • Add logos and branding to emails and the signing app. 
Subscription

Nitro Sign Enterprise

For organizations requiring a tailored, scalable eSign solution with advanced features.
Volume Discounts Available
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Features

Click to view list of features.

Customized solutions, including:

  • Integrate eSign functionality into your apps with our flexible API.
  • Utilize a range of signing methods—including digital certificates and ID verification—to meet strict regulatory requirements like eIDAS (AES/QES) or ZertES.