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Document Signer — Self-Hosted Contract Signer
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Document Signer — Self-Hosted Contract Signer

Self-hosted, privacy-first document signing. Sign, send, and manage contracts with a full audit trail — all on your own infrastructure.

SAby SpecZip Admin
v1.0.1

Tech Stack

1 downloads0 views
File Integrity
sha256:e110940d…· 39.4 KB
Replace DocuSign, HelloSign, and PandaDoc with a self-hosted, one-time purchase alternative. Built with Next.js and PostgreSQL for enterprise-grade document signing without recurring subscription fees. Features: document upload (PDF/DOCX/image) with auto-conversion, 12 field types, HTML5 Canvas signature pad, sequential and parallel signing routing, email delivery via SMTP, full envelope lifecycle, audit trail with Certificate of Completion, REST API, webhooks, reusable templates, white-label branding, SSO/SAML, and embedded signing widget.

External Dependencies

  • 🔴
    PostgreSQL
    infrastructureRequired

    Primary database for envelopes, recipients, documents, fields, audit events, templates, and user data.

  • 🔴
    Redis
    infrastructureRequired

    Job queue backend for BullMQ — handles email delivery, reminders, expiration, and document processing jobs.

  • 🔴
    Docker
    infrastructureRequired

    Containerized deployment via Docker Compose with PostgreSQL, Redis, and MinIO services.

  • 🔴
    SMTP Server
    serviceRequired

    Email delivery for signing invitations, reminders, and notifications. Any SMTP provider works: SendGrid, Mailgun, Postmark, or self-hosted.

  • 🟡
    Twilio (optional)
    serviceOptional

    SMS OTP verification for signer authentication. Optional — email-only mode works without it.

  • 🔴
    S3-Compatible Storage
    infrastructureRequired

    Document file storage. MinIO is the default (self-hosted), but any S3-compatible provider works.

Tags

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Details

Category
developer-tools
Difficulty
high
Version
1.0.1
Published
6/16/2026

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