Best E-Signature Software 2026

RabbitSign is a freemium e-signature service running on web and API.

Digio provides electronic signatures on Android and web, with API access, templates and audit trails.

Virtual Cabinet is a paid e-signature service for Android, iOS, web and Windows.

It suits individuals and organizations that send agreements for signatures and need tools such as reusable templates, approval workflows, or renewal tracking.

Certinal suits enterprise health systems managing consent across multiple hospitals, departments, and regulatory geographies.

Docracy is a freemium e-signature service for web and API with templates and bulk sending.

Formstack Sign is a paid e-signature service running on Android, iOS, web and API.

Sertifi suits hospitality businesses that handle contracts, event paperwork, payments, or card authorizations.

DocuSeal is a freemium e-signature API with document templates.

FreeSign is an open-source web and self-hosted e-signature platform for occasional PDF signing.

RightSignature signs PDF, Word and text files online on computers or mobile devices, with templates and reminders.