OpenSign is described as 'Open-source PDF e-signature solution with secure cryptographic signing, audit trails, completion certificates, API integration and multi-device support' and is a E-signature tool in the office & productivity category. There are more than 50 alternatives to OpenSign for a variety of platforms, including Web-based, SaaS, iPhone, Android and iPad apps. The best OpenSign alternative is DocuSeal, which is both free and Open Source. Other great apps like OpenSign are LibreSign, eSign Launchpad, Docusign and AeroSpark.
SignFlow digital signatures utilises the latest integrated personal X.509 digital certificate technologies to sign documents and embed authentication. User accounts, private keys and digital certificates are centrally created, stored and managed in our world-class PKI with...
Simplify your business using eSignatures. Send your documents and get them signed in seconds!
Sweden
EU
PDF Forms is a powerful processing app for anyone who has to deal with PDF forms and legal documents. With its help you can fill forms, add remarks and notes to the ready document, sign agreements and notices.
United States
GetEsigns is a secure eSignature and PDF solution that lets you sign documents online, edit, convert, merge, split, compress and manage PDFs. Streamline document workflows, improve collaboration and complete agreements faster with an easy-to-use cloud-based platform.
Docstrail offers secure eSignatures, fast document workflows, and seamless digital signing solutions for modern businesses.
Transform your entire agreement process with a compliant, secure, and industry-leading eSignature solution—available wherever and whenever you need.
United States
Provides an e-signature service for documents.
Key Features:
United Kingdom
Freesign is a free electronic signature service that lets you sign PDF documents directly in your browser. No software to install, no subscription, no credit card required — you get 3 free signatures every month.
United States
XolidoSign, the best technology for electronic signature, time stamping and verification of all types of intelligent documents (PDF integrated firm, images, etc..).
SpainEU
Signsquid is an easy & time-saving electronic signature solution backed by a legal guarantee.
United States
Trust builder platform that helps service industry businesses digitalize their operations with digital documents and Digital Biometric Signature.
ContractSPAN helps businesses manage, sign, and analyze contracts using AI for faster, smarter, and more secure workflows.
India