OpenSign
An open-source document e-signing platform offering a free alternative to commercial solutions
- Also known as
- opensign
Available worldwide
What is OpenSign?
An open-source solution that enables secure signing, storage, and management of digital documents, offering a no-cost alternative to commercial e-signature services.
OpenSign pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Free tier with unlimited signatures. Professional paid plans available (pricing not publicly listed).
Free
FreeUnlimited signatures with document storage
- signatures
- unlimited/month
- Unlimited e-signatures
- Invite and collaborate
- Completion certificates with access logs
- Secure document storage
- Multi-signer support
- Email OTP verification for guest signers
- Document expiration settings
- API access
Professional
Paid tier with advanced professional features
- Advanced features
What OpenSign does
The capabilities that matter for esignature, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Qtsp
- -
- Esign ueta
- -
- Cfr part11
- -
- Audit trail
- ✓
- In person signing
- -
- Embedded API
- ✓
- Bulk send templates
- -
- SOC2
- -
- HIPAA available
- -
- Ron
- -
Platform & deployment
Independently observed- Web
- Cloud / SaaS
- Self-hosted
Integrations (1)
Independently observed- Zapier
OpenSign FAQ
Common questions about OpenSign, answered from independent, dated evidence.
What is OpenSign?
An open-source solution that enables secure signing, storage, and management of digital documents, offering a no-cost alternative to commercial e-signature services. It is indexed under Esignature.
Source: https://www.opensignlabs.com
Is OpenSign free to use?
OpenSign is open source, so it can be self-hosted and used at no licence cost. Paid editions are also offered: Professional, priced on request. Pricing changes often, so verify at source before relying on it.
Source: https://www.opensignlabs.com
What platforms does OpenSign support?
We have confirmed browser-based access to OpenSign. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.
Source: https://www.opensignlabs.com
Can OpenSign be self-hosted?
Yes. OpenSign can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://www.opensignlabs.com
OpenSign alternatives
Other esignature we track, ranked by the same independent score.
- DocuSealOpen-source platform for creating, signing, and managing digital documents securelymedium · 62%
- SignNowPlatform for electronically signing and sending documentsmedium · 52%
- OneSpan SignEnterprise electronic signature platform for secure document signinglow · 38%
- YousignElectronic signature application for sending, tracking, and automating document signingmedium · 60%
- Dropbox SignElectronic signature platform with APIs for document workflowsmedium · 52%
- DocumensoAn open-source platform for digital document signingmedium · 73%
Compare OpenSign
Side by side against other esignature, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for OpenSign, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Capabilities | 46 | 0.08 | 3.6 | ✓ |
| Integrations | 9 | 0.07 | 0.6 | ✓ |
| Stars | 0 | 0.03 | 0.0 | - |
| Dependent projects | 0 | 0.06 | 0.0 | - |
| Development activity | 0 | 0.09 | 0.0 | - |
| Release cadence | 0 | 0.05 | 0.0 | - |
| Security posture | 0 | 0.07 | 0.0 | - |
| Package downloads | 0 | 0.14 | 0.0 | - |
| Security score | 0 | 0.04 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 4 items | mediumsource · 2026-09-10 · 60% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Audit trail, Embedded api | mediumsource · 2026-09-28 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 1 | mediumsource · 2026-09-28 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-19 · 75% |
Pricing
Is OpenSign the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank OpenSign against the rest of the esignature we index, using the same dated evidence weighted your way.
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Is this your product?
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