OpenSign™
by OpenSign · Open-source PDF e-signature platform
BenchRank score
Screenshots of OpenSign™
Homepage
Overview
OpenSign™ is an open-source platform for signing PDF documents, presented as an alternative to DocuSign. Several people can be invited into a signing process, and every completed document comes with a certificate recording access logs. Signed documents can be stored and organised in the OpenSign™ Drive vault.
- Best for
- Individuals and businesses wanting an open-source PDF e-signature alternative to DocuSign
- Pricing
- The homepage advertises a free plan with unlimited e-signatures and free collaboration, but shows no figures and no paid plans.
- Runs on
- WebSelf-hosted
Strengths and trade-offs
Strengths
- Free plan advertised with unlimited e-signatures
- Extra signers can be invited at no additional cost
- Each signed document gets a certificate with access logs
- OpenSign™ Drive vault included for storing documents
Trade-offs
- Signing is described only for PDF documents
- No prices shown on the captured page, though a pricing page exists
- Encryption and API support are only asserted in meta copy, not detailed
- Support appears to run through GitHub and Discord, not a stated SLA
How OpenSign™ markets itself
A structured read of the promise, proof and page design on OpenSign™’s captured homepage.
Homepage capture
“Seal the Deal, Openly. Welcome to OpenSign™”
- Angle: ROI / cost-saving
- Hero: Illustration
Pricing
Published plans and prices from OpenSign™’s own pricing page.
How this score is made up
Each dimension is scored out of 100 and combined into the headline score using fixed weights.
MCP support
Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.
API quality
Public API surface: machine-readable spec, official SDKs, documented auth, errors, rate limits and versioning.
Documentation
Publicly reachable docs — coverage, freshness, code samples and machine readability.
Agent friendliness
How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.
Changelog
A public, dated record of what shipped and when — the clearest signal that a product is still alive.
Marketing site structure
Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.
Page speed
How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.
Operational trust
Status page and incident history, security disclosure, compliance and data-processing documentation.
Measured, but not part of the score
Useful to know, but not a mark for or against the product — so these do not affect the ranking.
Openness
Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.
Maintenance
Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.
This doesn’t look right — report a problem with OpenSign™’s score
Where this comes from
The OpenSign™ pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.
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Is this your product?
Claim OpenSign to manage its profile. Claiming lets you suggest edits to the descriptive fields — it never changes scores or rankings.