Skip to main content
Professional using digital signature

The secure and legally binding digital signature for your world.

Reduce bureaucracy and speed up your processes: sign, manage, and validate documents with technology you control.

Validated Trust: LibreSign Solutions from Those Who Understand Governance and Efficiency.

Sistema OCB/RJ
OAB|ESA
Fiocruz

More than X million documents signed securely and with legal validity.

Eliminate Bureaucracy, Ensure Security: LibreSign Solves Your Biggest Challenges.

We understand the complexities of each industry. See how our platform is the answer you're looking for.

Legal Validity and Undisputed Compliance?

Minimize risks and ensure the authenticity of each document with electronic signatures that fully comply with the LGPD and current legislation.

Simple, Secure and Affordable Digital Signature?

Optimize your workflows, strengthen governance, and reduce operational costs without sacrificing security or ease of use.

Total Control and Flexibility to Integrate?

Easily integrate, customize to your needs, and enjoy the freedom of a robust, scalable architecture under your control.

Unlock the Future of Your Management: The Exclusive Benefits of LibreSign.

More than a tool, a strategic partner for digital efficiency and security.

Advanced Security

Keep your documents secure with end-to-end encryption and multi-layer authentication, ensuring protection throughout the entire electronic document signing process.

Hybrid Signatures

Hybrid signatures simplify negotiation processes by offering flexibility in choosing between personal or system-generated digital certificates to digitally sign documents with LibreSign.

Real-Time Monitoring.

Transform document management in public organizations with LibreSign, monitoring signatures in real time, sending automatic reminders, and optimizing your team's efficiency. Try our solution for transparent and productive administration.

QR Code validation

Perform document authenticity verification using QR codes, ensuring security, efficiency, and convenience. Its instant validation, speed, transparency, and compatibility with various platforms make it perfect for sustainable businesses.

Tailored Solutions: LibreSign Meets the Unique Demands of Your Business.

Developed with expertise to optimize processes across various segments.

Public Management: Transparency, Validity, and Efficiency

Digitize bids, contracts, and administrative processes with total compliance and agility, respecting public value.

Discover the Perfect Solution for the Public Sector

Small and Medium Businesses: Grow with Security

Optimize contracts, reduce costs, and ensure the legal validity of your commercial agreements, streamlining your business.

Discover the Perfect Solution for Small and Medium Businesses

Cooperatives: Strengthen Governance and Member Participation

Digitize assemblies and internal processes, promoting transparency, collaboration, and alignment with your cooperative values.

Discover the Perfect Solution for Cooperatives

Information Technology: Control and Total Flexibility

Integrate, customize, and scale a robust, open-source solution with autonomy that your infrastructure demands.

Discover the Perfect Solution for IT Professionals

Legal Sector: Agility and Unquestionable Legal Security

Ensure the legal validity of each signature and simplify document management, with total protection for confidential information.

Discover the Perfect Solution for Lawyers
About Us

The perfect tool to manage the signature flow of your documents

LibreSign is a web application for electronic signatures (e-Sign) developed by the LibreCode cooperative (Brazilian cooperative specialized in free software development). Its development began at the beginning of 2020, in the midst of the pandemic, when people and companies were migrating their physical documentation to digital, and then there was a need to develop a web solution that could offer the possibility of signing documents, contracts and proposals online with security and agility.

We use PKI technology to generate digital certificate keys. LibreSign is open source (and always will be), which allows it to be audited and customized for various needs and integrated with any system and, of course, maintained by the community.

See LibreSign in Action: Simplify Your Signatures in Detail.

Our complete video guide shows how to sign, manage, and validate documents step by step, in an easy and secure way.

Testimonials

What our customers says

Libresign's nextcloud integration has come a long way in the past year. If you tried it before and found it lacking, give it another chance. I can see it being a real option and alternative to other e-signature services.

Matt Nelson

Congratulations to the LibreSign development team for creating such an efficient solution for electronic signatures! LibreSign has an intuitive interface and ease of use, allowing integration with various APIs. I've been following the development and see it improving with each new release. LibreSign makes managing digital signatures a simple and reliable experience. I highly recommend it!

Lua Mello

Finally an excellent app for signing documents. Very good!

Daiane Alves

Libresign is becoming a fully-featured alternative to expensive cloud services like DocuSign. The nextcloud integration makes it a real option to use for e-signatures.

Metheos

LibreSign has come a long way and it is great replacement to most commercial e-signature solutions and it is open source.

0-bandage-dugouts

It works perfectly with the electronic certificate issued by the Spanish Government. Installation has become very simple and affordable for anyone with minimal knowledge of Nextcloud. Developer support is fantastic. It works on all devices, including mobile devices. It has different options for creating, requesting and signing signatures. Version 9 is a great leap in quality and has a lot of future. It's incredible that this application works so well and is free.

Iván Gómez Fernández

A simple and complete solution. It speeds up processes and can eliminate the use of paper. We integrated it with our public management system or e-Cidade, it was absurdly good. Congratulations.

Igor Afonso Oliveira Ruas

Did you know that digital signature is the safest and most efficient way to validate electronic documents?

By using digital certificates issued by a Certification Authority, it is possible to ensure the signer's identity and the document's integrity. Physical signatures can be forged, compromising the validity of your documents. However, digital signatures, regulated by Provisional Measure No. 2.200-2/2001, provide the necessary security to protect the authenticity and legal validity of your documents.

Transform your processes with more security and efficiency

Security

Encrypted signatures that guarantee the integrity of your documents.

Speed

Sign and send documents in seconds, from anywhere in the world.

Sustainability

Contribute to a greener world by eliminating the use of paper.

LibreSign: Knowledge that Drives Your Digital Transformation.

Explore articles, guides, and insights about GDPR, technology, management, and the world of electronic signatures.

Digital signature article Digital Signature

Digital document signature: see real situations where digital signature transforms contracts

Digital signature has become an essential tool in the corporate, legal, and even personal world. More than a trend, it represents a definitive change in the way we deal with documents...

Digital signature myths Digital Signature

4 doubts about digital signature: Learn about the common myths created about this term

To help you clarify the most frequent doubts about digital signature, our specialists answer some questions raised through social media and public forums. Check it now and learn how digital signature can transform your life...

How to create digital signature Digital Signature

How to create a digital signature: learn the step-by-step process of how to do it

How about saying goodbye to paper, unnecessary travel to the notary, and waiting times? Digital transformation made office workflows more streamlined than ever. The digital signature market has become increasingly...

FAQ

Any Questions? Answered

LibreSign frequently asked questions

LibreSign allows documents to be signed securely and with legal validity, since the system generates hashing - an algorithm that ensures that the file has not been altered after being signed - as well as numbers and records the times of each signature carried out in the document. In this way, the system meets all the requirements of the GDPR - General Data Protection Law.
Electronic signature capture is a technology for signing electronic document files with a handwritten signature. The use of this technology allows for the elimination of the mailing, storage, filing, copying, and retrieval of paper documents. This will save your business time and money.
File Creation, Signature with Digital Certificate, Signature Management, Document Management, Validation, API
No. The digitized signature is the reproduction of the handwritten signature as an image using scanner-type. It does not guarantee the authorship and of the electronic document, as there is no association between the signer and the text, as it can be easily copied and inserted another document.
LibreCode, a Brazilian cooperative of free software developers.
Image with captcha text