SignForge - 2026 Pricing, Features, Reviews & Alternatives

Every e-signature platform will get a document signed. The difference shows up afterwards — in whether you can still prove that signature is genuine years later, and who you have to depend on to do it.

What makes Signforge different

Conventional e-signature tools keep verification on their own servers. To prove a document is authentic you send it back to the vendor's portal and they vouch for it. Your evidence lives on someone else's infrastructure, tied to an account you have to keep paying for.

SignForge embeds the proof inside the document. Every signed PDF carries a W3C Verifiable Credential, an ECDSA P-256 signature, and a SHA-256 hash of the file, anchored in a public Merkle transparency log. Verification runs offline against open standards — no SignForge account, no proprietary reader, no vendor in the loop. The document is self-contained evidence.

AI - Native, not AI-Retrofitted

Amanda AI drafts agreements from a plain-language description and summarises documents you receive. An MCP server exposes SignForge to AI agents directly, so an assistant can create an envelope, send it for signature, check status, and retrieve the signed file. For teams building AI workflows that is a first-class integration rather than a chatbot attached to a form.

Fits your stack

Enterprise plans include a REST API with webhooks covering the full envelope lifecycle, an embeddable signing widget you can drop into your own application as an iframe or modal, and SSO/SAML. A public verification API lets anyone confirm authenticity programmatically. Sandbox test keys are quota-exempt and produce watermarked output, so you can build and test without consuming anything.

Built for volume

Reusable templates, bulk send for issuing many documents at once, and bulk signing for executing high volumes of identical templates in a single session. Team workspaces, custom domains, CC recipients, pre-filled fields, scheduled sending, and automated reminders. Delivery by email, SMS, or WhatsApp. Pricing is flat-rate per account rather than per seat, so headcount does not drive cost.

Signing Experience

Signers need no account. They open a secure link on any device and sign by typing, drawing, or uploading an image. Every action is recorded in an append-only audit trail with timestamps, IP addresses, user agents, and explicit consent, and each completed document ships with a signing certificate.

Compliance

Legally binding under the ESIGN Act in the United States, eIDAS in the European Union (simple and advanced electronic signatures), and UETA, with GDPR compliance and dedicated guidance for the UK, Canada, Australia, India, Japan, and Brazil. SignForge does not issue AATL certificates or eIDAS Qualified Electronic Signatures, which a small number of highly regulated workflows require.

Free Plan

A permanently free tier includes 10 e-signs per month, the full audit trail and signing certificate, embedded verification proof, AI document generation, and all 12 browser-based PDF tools. No credit card, and no trial that expires.