RabbitSign
RabbitSign provides electronic signature requests for PDF documents through web and API access.
What RabbitSign is
RabbitSign provides electronic signature requests for PDF documents through web and API access. Manual e-signing is free, with unlimited signature requests, unlimited templates, audit trails, and template links. Creators can add signature, initials, textbox, date, and checkbox fields, set signing order, and copy additional parties on completed documents. Shared templates let signers access forms without a sender starting each request. Batch Send handles up to 200 requests at once, with each request customizable through CSV. The Developer API supports programmatic requests, webhooks, up to three API keys, and API logs. RabbitSign states SOC 2 Type II and ISO 27001:2022 compliance, plus optional free HIPAA-compliant signing after accepting its BAA. Documents are encrypted at rest with AWS Key Management Service, and traffic uses HTTPS and TLS. Batch Send costs $0.03 a month under its listed plan; API folder creation costs $0.10 a month and non-folder calls cost $1 a month. RabbitSign has no mobile app, though signing works in a phone browser.
Good
- Unlimited free manual signature requests
- Reusable templates can be shared by link
- Batch sending supports up to 200 requests
- Developer API includes webhooks
- HIPAA-compliant signing available free
Watch out
- Supports PDF files only
- No mobile app
- Batch and API usage have separate charges
- Zapier, Salesforce, and HubSpot integrations are under development
Who it suits
RabbitSign suits individuals and organizations needing free manual PDF signing, reusable templates, audit trails, or API workflows. Its HIPAA option is aimed at Covered Entities and Business Associates.
Verdict
RabbitSign offers free manual signing with templates, audit proof, and optional compliance features. Separate batch and API charges apply when sending at scale or integrating programmatically.
Plans and prices
From RabbitSign's own pricing page, checked 22 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free manual e-signing | Free | Unlimited signature requests · Unlimited templates · Audit trails · Template links |
| Developer API folder creation | $0.10 a month | 10 free folder creations one time · Up to 3 developer API keys · Each developer account receives 10 free folder creations one time |
| Developer API non-folder calls | $1 a month | 100 free non-folder API calls one time · Up to 3 developer API keys · Each developer account receives 100 free non-folder API calls one time |
| Manual e-signing | Free | Unlimited signature requests · unlimited templates · HIPAA compliance available free |
| Batch Send | $0.03, paid once | First 20 folders free per account · up to 200 folders per batch · $0.025 per folder after allowance |
| Developer API | $0.10, paid once | $0.10 per API-created folder · APIs that do not create folders cost $1 per 1,000 calls · one-time free allowance of 10 folders and 100 non-folder API calls |
The facts
Each one read from RabbitSign's own pages, with the date it was checked.
What it does
- API access
- Yeschecked 22 Sep 2026
- Audit and proof
- Signed documents include an audit trail, and RabbitSign records document hashes on an append-only ledger as proof of existence.checked 11 Oct 2026
- Audit trail
- Yeschecked 22 Sep 2026
- Batch sending
- Batch Send supports up to 200 signature requests at once, with each request customizable through a CSV file.checked 11 Oct 2026
- Bulk sending
- Yeschecked 22 Sep 2026
- Developer API
- The Developer API supports programmatic signing requests, webhooks, up to three API keys per account, and API logs.checked 11 Oct 2026
- Document templates
- Yeschecked 22 Sep 2026
- HIPAA
- Accounts can enable HIPAA-compliant e-signing for free by accepting RabbitSign's BAA.checked 11 Oct 2026
- Integrations
- RabbitSign says Zapier, Salesforce, and HubSpot integrations are under development.checked 11 Oct 2026
- Intended users
- RabbitSign says its free HIPAA-compliant e-signing is offered to HIPAA Covered Entities and Business Associates.checked 11 Oct 2026
- Limits
- RabbitSign currently supports PDF files and says it has no mobile app, though signing can be done in a phone browser.checked 11 Oct 2026
- Privacy and encryption
- RabbitSign says documents are encrypted at rest using AWS Key Management Service, website traffic uses HTTPS and TLS, and it does not sell user data.checked 11 Oct 2026
- Product
- RabbitSign provides electronic signature requests for signing documents.checked 11 Oct 2026
- Reusable templates
- Templates can be shared by link so signers can access and sign them without a sender initiating each request.checked 11 Oct 2026
- Security
- RabbitSign states that it has SOC 2 Type II compliance with an unqualified opinion and ISO 27001:2022 compliance.checked 11 Oct 2026
- Signing workflow
- Creators can add signature, initials, textbox, date, and checkbox fields, set signing order, and copy additional parties on signed documents.checked 11 Oct 2026
- Support
- RabbitSign offers email support at [email protected].checked 11 Oct 2026
The company
- Founded
- 2020checked 4 Oct 2026
Money
- Free plan
- Yeschecked 22 Sep 2026
- Free usage
- Manual e-signing supports unlimited signature requests and unlimited templates at no cost.checked 11 Oct 2026
Alternatives to RabbitSign
- 1
OpenSign
Free planOpen sourceWebAPILinuxmacOS8.4From $9.99 a month - 2
Zoho Sign
Free planAndroidiOSWebAPI8.3From $10 a month - 3
Dropbox Sign
Free planAndroidiOSWebAPI8.2Free plan - 4
Jotform
Free planAndroidiOSWeb8.2From $39 a month - 5
Sertifi by Flywire
Free planAndroidiOSWebAPI8.1Free plan - 6
SigniFlow
Free planAndroidiOSWebAPI8.0From $15 a month