# Open-source alternatives for E-signatures

> Send documents for signature and track who signed, on your own server instead of a per-envelope plan.

## Paid products
- [Open-source alternatives to DocuSign](https://repoquarry.dev/alternatives/docusign.md): Paid e-signature service (DocuSign eSignature) for sending documents to be signed, routing them between signers, tracking status with an audit trail, reusing templates and embedding signing in other apps through an API. Pricing: See pricing page.
- [Open-source alternatives to Dropbox Sign](https://repoquarry.dev/alternatives/dropbox-sign.md): Dropbox Sign sells electronic signature collection and related document workflows. These alternatives cover selected signing tasks, with different templates, integrations and administration. Pricing: See pricing page.
- [Open-source alternatives to PandaDoc](https://repoquarry.dev/alternatives/pandadoc.md): PandaDoc sells document creation, proposals and electronic signatures. These alternatives cover the signing portion; proposal authoring, sales quoting and the wider contract workflow are not replaced. Pricing: See pricing page.

## Top ranked projects
1. [Stirling PDF](https://repoquarry.dev/projects/stirling-pdf.md): Open-core PDF platform with 50+ tools (edit, merge, split, sign, redact, convert, OCR) as a desktop app, browser UI or self-hosted server. Commercial use: Partial.
2. [Documenso](https://repoquarry.dev/projects/documenso.md): Self-hostable document signing platform with signing order, reminders, templates, audit logs and an API; AGPL core plus paid Enterprise features. Commercial use: Partial.
3. [DocuSeal](https://repoquarry.dev/projects/docuseal.md): Self-hostable app to build PDF forms and have them filled and signed by multiple people, with email, API and webhooks; some features are paid Pro. Commercial use: Partial.
4. [OpenSign](https://repoquarry.dev/projects/opensign.md): Self-hostable PDF e-signing with multiple signers in sequence, OTP checks, templates, audit trail with completion certificate, and an API. Commercial use: Partial.
5. [DSS (Digital Signature Service)](https://repoquarry.dev/projects/eu-dss.md): European Commission Java library for creating, extending and validating advanced electronic signatures (XAdES, CAdES, PAdES, JAdES). Commercial use: Partial.
6. [LibreSign](https://repoquarry.dev/projects/libresign.md): Nextcloud app for document signing workflows with signing order, internal and external signers, reminders, certificates and validation. Commercial use: Partial.
7. [pyHanko](https://repoquarry.dev/projects/pyhanko.md): Python library and CLI that signs, stamps, validates and encrypts PDFs with certificates, PKCS#11 tokens, timestamps and PAdES profiles. Commercial use: Confirmed.
8. [JSignPdf](https://repoquarry.dev/projects/jsignpdf.md): Desktop and command-line app that adds certificate-based digital signatures to PDFs, with smartcard/HSM support, timestamps and PAdES. Commercial use: Partial.
9. [DigiDoc4 Client](https://repoquarry.dev/projects/digidoc4.md): Estonia's official desktop app for signing and encrypting documents with an Estonian ID-card, Mobile-ID or Smart-ID. Commercial use: Partial.
10. [Signature PDF](https://repoquarry.dev/projects/signaturepdf.md): Lightweight PHP web app to sign PDFs alone or with others, plus page organising, metadata editing and compression; optional certificate signing. Commercial use: Partial.
11. [DottedSign Self-Hosted](https://repoquarry.dev/projects/dottedsign-self-hosted.md): New AGPL self-hosted edition of the commercial DottedSign e-signature service, run with Docker Compose; signed files carry a free-tier code. Commercial use: Partial.
12. [endesive](https://repoquarry.dev/projects/endesive.md): Pure-Python library to create and verify certificate signatures in PDFs, S/MIME email, XML (XAdES) and plain files, with PKCS#11/HSM support. Commercial use: Partial.
13. [open-pdf-sign](https://repoquarry.dev/projects/open-pdf-sign.md): Java command-line tool and small HTTP server that adds PAdES certificate signatures to PDFs, visible or invisible, with optional timestamps. Commercial use: Partial.
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Source: RepoQuarry (https://repoquarry.dev/categories/e-signature). Data licence: CC BY 4.0. Quotes are from project documentation and belong to their authors.