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Comparison

OpenSign vs Documenso

OpenSign and Documenso both land on Depends.

OpenSign versus Documenso
CompareOpenSignDocumenso
VerdictDependsDepends
Best forCost-sensitive small businessesSelf-hosters
Who it's not forLegal, healthcare, finance teams needing audited complianceRegulated teams needing certified AdES/QeS now
PrivacyMultiple CVEs published in 2026 including auth bypass and unauthenticated tenant data exposure; vendor security page was returning a 404.10Open code with public fixes; three recent CVEs surfaced, including OAuth login and unauthenticated file-upload issues.12
Support qualityTrustpilot sentiment 'Average'; no SLA evidenceFounder admits support is inconsistent
Public sentimentSelf-hosters on Reddit praise the free, quick setup, and Capterra reviewers are positive, but Trustpilot sentiment is only average and review snippets lack ratings.Users praise Documenso as a simple, fast signing tool, though support is admittedly uneven.16
Biggest gotchaSelf-hosting means you own patching; 2026 CVEs show updates lag exploitability13Self-hosters must patch fast; OAuth and file-upload CVEs surfaced12

Pick OpenSign when

  • Cost-sensitive small businesses
  • Self-hosters and dev teams
  • API-driven document workflows
  • Startups cutting DocuSign spend

When OpenSign is not a fit

  • Legal, healthcare, finance teams needing audited compliance
  • Non-technical teams unwilling to self-host and patch
  • Enterprises needing SLA-backed vendor support
  • Anyone signing high-stakes contracts without a security review

Pick Documenso when

  • Self-hosters
  • Cost-sensitive startups replacing DocuSign
  • Dev teams wanting auditable code
  • Simple contract workflows

When Documenso is not a fit

  • Regulated teams needing certified AdES/QeS now
  • Enterprises wanting DocuSign's full depth
  • Non-technical teams unwilling to patch CVEs
  • Buyers needing polished, reliable support

Sources

  1. OpenSign homepageopensignlabs.com
    official
  2. OpenSign pricingopensignlabs.com
    official
  3. OpenSign GitHub repositorygithub.com
    official
  4. OpenSign product security page (404)opensignlabs.com
    official
  5. G2 reviewsg2.com
    review
  6. Trustpilot reviewstrustpilot.com
    review
  7. Capterra (AU) reviewscapterra.com.au
    review
  8. Reddit r/selfhosted launch threadreddit.com
    review
  9. Reddit r/opensource hijack attempt threadreddit.com
    news
  10. CVE-2026-72545 . OpenSign auth bypasssentinelone.com
    security
  11. CVE-2026-72548 . Unauthenticated tenant data accesscyberattack.ai
    security
  12. CVE-2026-92794 . Information disclosureionix.io
    security
  13. CISA vulnerability summary, week of Sep 14 2026cisa.gov
    security
  14. Documenso . official sitedocumenso.com
    official
  15. Documenso Pricing Teardowngetbeton.ai
    news
  16. Product Hunt . Documensoproducthunt.com
    review