Open source DocuSign alternative. Create, fill, and sign digital documents ✍️
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Updated
Jul 20, 2026 - Ruby
Open source DocuSign alternative. Create, fill, and sign digital documents ✍️
The Open Source DocuSign Alternative.
🔥 The free & Open Source DocuSign alternative
PDF signing utility supporting GPG and Sigstore (Google, GitHub, Microsoft accounts / keyless OIDC) signatures, multi-party signing, making it easy to sign and verify documents without heavyweight PDF signing stacks, making your PDFs authentic, tamper-proof, fully compatible with regular readers; all while costing zero-dollars to use.
Nix modules for interacting with Spanish public administration services [maintainers=@nilp0inter @panchoh @CesarGallego]
A toolkit for generating self-signed digital certificates for signing PDFs, emails, software, and other content using tools like JSignPdf or any software that supports PKCS#12.
✍️ Sign documents without stress
WeasySign is a small simple to use high level library for digitally signing pdf's generated with the WeasyPrint PDF library.
Official SignNow MCP server for AI agents. Access e-signature workflows, templates, embedded signing, documents via the Model Context Protocol.
DocuSeal PHP Document Signing API client
A free and open-source document signing alternative built with React, TypeScript, and Supabase for secure document signing and storage.
Open-source AI contract review & e-signature platform. Free alternative to DocuSign, Adobe Sign & PandaDoc. Draft, review, and sign legal contracts with AI-powered clause analysis.
Signet — a privacy-first PDF editor that runs entirely in your browser. Add text & signatures, animated UI, resume where you left off, and optional accounts (saved signatures, synced preferences & drafts). Your PDF files never leave your device.
A native Linux PDF viewer and signing tool with extensive digital signature customization and hardware token support.
Open Source Vue PDF Editor
100% DIY Document Authenticator
Official Node.js CLI for the SignWell eSignature API — send, manage, and download signed documents from your terminal. HIPAA, SOC 2, eIDAS compliant.
Lightweight offline document signing & stamping editor. Generate seals, draw signatures, export PDF. Built with Tauri + JS.
Sistema de firma electrónica avanzada utilizando SoftHSM, Node.js, Express y MongoDB. Permite registrar usuarios con RUN y firmar documentos PDF mediante una API REST.
S/MIMESIGN fork with linux support
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