Sign in Submit site

OpenSign

github.com/OpenSignLabs/OpenSign PDF & Document Tools Open-source project

Electronic document signing is the focus of OpenSign, an open-source project presented as a DocuSign alternative.

Visit OpenSign Alternatives
github.com/OpenSignLabs/OpenSign
OpenSign homepage screenshot

About OpenSign

OpenSign is an open-source electronic signature project presented as a free alternative to commercial e-signing platforms such as DocuSign. It covers PDF signing, annotations and a signature pad that accepts hand-drawn, uploaded image, typed and saved signatures, along with multi-signer workflows, templates, a document vault and audit records. A hosted free version is described as allowing unlimited document signing; the code is published on GitHub with installation and usage documentation for those who want to run it themselves.

Key features

  • Secure PDF e-signing with encryption; unlimited documents on the free cloud version
  • Signature pad: hand-drawn, uploaded image, typed and saved signatures
  • Invite multiple signers by link, with enforced signing sequence
  • Email one-time code verification for guest signers; document expiry and rejection
  • Audit trails, completion certificates, reusable PDF templates, OpenSign Drive vault
  • API keys and documentation for integrating signing into existing systems
Best for: Organizations and developers that want a self-manageable, open-source e-signature workflow instead of a commercial subscription platform.
Good for
  • Published as free and open source under a repository with installation, usage and API documentation
  • Supports multi-signer invitations, signing order, templates, expiry, rejection and audit trails
  • Can be integrated into existing systems through an API key generated in the app
Watch out for
  • The source states no pricing or plan details beyond the free cloud-hosted version
  • Self-hosting requires working through the project's own installation setup, including Docker Compose and server configuration
  • Security, privacy and compatibility claims come from the project itself and depend on how it is deployed

OpenSign at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Open source
Not stated
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026
self hosteddocument tools

OpenSign alternatives

Tools and sites you could use instead, ranked by how closely they match.

Popular in PDF & Document Tools

Well-known listings from the same topic.

All 61
2OCR2ocr.com2PDFConverter2pdfconverter.comAlt Enginesgithub.com/hiroi-sora/Umi-OCR_pluginsBentopdfgithub.com/alam00000/bentopdfOCRToolocrtool.netPDFCoffeepdfcoffee.com
Related topicsText ToolsImage ToolsURL & Link ToolsEveryday Web UtilitiesPastebinsFile Sharing & TransferTranslationImage Hosting

OpenSign FAQ

Is OpenSign free to use?
The project describes itself as a free and open source DocuSign alternative and says the cloud-hosted free version allows signing unlimited documents. No pricing for any other plan is given in the source.
Can several people sign the same document?
Yes. OpenSign supports inviting multiple signers by sharing signing links and can enforce signing in a sequence.
Can OpenSign be connected to other software?
Yes. An API key can be generated from the app, and the project links official API documentation for integrating signing into existing applications.
Is something wrong or out of date?

Tell us and an editor will check it.

Own this website?

Claim the listing and suggest updates yourself. An editor checks every claim first.

Claim this listing

Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 11, 2026 · How we rank