OpenSign

From public sources

OpenSign is a free, open-source e-signature web app and DocuSign alternative for signing, annotating and tracking PDF documents.

ApplicationCategory: Web Apps · Automation · Files & cloud storage · PDF & documentsPricing unknowndata checked Oct 15, 2026

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Overview

Sending contracts and forms for signature often means paying per-envelope fees to commercial platforms like DocuSign. OpenSign is a free and open-source alternative that lets you sign, annotate and collect e-signatures on PDF documents from a web app. It supports hand-drawn, uploaded, typed and saved signatures, multiple signers with optional signing sequence, and guest signers verified by an email one-time code. Documents can be set to expire, signers can reject with a reason, and each completed document gets an audit trail and completion certificate. Reusable PDF templates, a document vault called OpenSign Drive, and an API with Zapier integration are also included. OpenSign is aimed at individuals and teams who want self-hosted or cloud-based e-signing without a subscription. It can be deployed with Docker using the provided compose files, and the project is licensed under AGPL-3.0. Note: the default deployment uses a non-persistent MongoDB, so configure your own database connection to keep your data.

digital-signature
document-signing
docusign-alternative
docusign-free
e-signature
electronic-signature
electronic-signatures
esign
esignature
hacktoberfest
javascript
pdf

Installation

Commands are shown, never run by the marketplace. Check them against the official documentation.

Official websiteFrom public sourcesfrom catalog metadata
www.opensignlabs.com/ ↗
Language package registrynodejsFrom public sourcesfrom the package manifest — publication on the registry is not verified
npm install -g opensign
Not verified: check that this package in the registry belongs to this project before installing.
www.npmjs.com/package/opensign ↗
Build from sourceFrom public sourcesfrom catalog metadata
Build from source: no validated build recipe — follow the repository instructions.
github.com/OpenSignLabs/OpenSign ↗

Compatibility

Unknown means no evidence was found — not that the product is incompatible.

Platform	Status	Architecture	Evidence	Confidence
Web browser	Unknown	—	—	—
Server / self-hosted	Unknown	—	—	—
Container (OCI)	Unknown	—	—	—
Node.js	Compatible	—	package manifest: package.json name	0.60