Dev tools · alternatives · 2026

24 alternatives to Signer Authority

Secure e-signatures with cryptographic proof.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
Documenso▲760
Enterprise-Grade Signature Infrastructure for Everyone
2023 · documenso.com · its alternatives →
2
SignWell▲396
Get documents signed quickly, securely & legally
2024 · signwell.com · its alternatives →
3
SignRequest – Electronic Signatures for everyone▲42
Sign yourself or get documents signed. Easy, secure, legally binding and free.
2017 · signrequest.com · its alternatives →
4
SignSecure V2▲13
Freedom from fraud with secure and efficient e-signatures.
2025 · signsecure.io · its alternatives →
5
WorkHub eSignature▲284
Affordable digital signature software
2022 · workhub.ai · its alternatives →
6
DeedSign▲86
Free electronic signatures to sign documents
2024 · deedsign.com · its alternatives →
7
Signaturely▲436
Free eSignatures for life, free contract templates
2021 · signaturely.com · its alternatives →
8
Authsignal▲125
Passwordless auth, fraud analytics and step-up rules in mins
2022 · authsignal.com · its alternatives →
9
Blockusign▲93
Secure Document Signing & Verification Powered by Blockchain
2018 · blockusign.co · its alternatives →
10
DottedSign▲110
The e-signature solution for your business
2019 · dottedsign.com · its alternatives →
11
Blocknify▲71
Sign sensitive documents without sacrificing your privacy.
2018 · its alternatives →
12
Inscribe▲112
A protocol for rich, verified signatures on any NFT
2021 · inscribe.so · its alternatives →
13
OpenSign™: Open Source DocuSign & more▲109
Enterprise-Level Document Signing Goes Open-Source
2023 · opensignlabs.com · its alternatives →
14
Open Source Mobile Privacy Policy▲106
Open legal documents, provided and trusted by people like you. Find or upload a document, sign it for free.
2013 · docracy.com · its alternatives →
15
Document eSign▲56
Cloud based platform for electronic signatures
2021 · documentesign.com · its alternatives →
16
AuditSignPro▲3
Instant digital signature verification & trust validation.
Mar 2026 · auditsignpro.com · its alternatives →
17
RightSignature▲95
The fastest way to get docs filled out and signed online.
2015 · rightsignature.com · its alternatives →
18
Let's Seal – Let's Encrypt for document signing, free and self-hosted▲94
TLDR, Let's Seal gives the finger to Adobe and every doc signing tool (docusign, google, etc) who pay to play with the Adobe Approved Trust List and then charge you for something that should be free. Currently even the person checking if a document/contract is sealed or code is authentic has to also be inside the same Adobe walled garden too. Verification, the part that should be free is the part everyone charges for. Thats the shape Let's Encrypt fixed for TLS, and I wanted the same thing for documents and files. The core idea therefore needed to go a bit beyond e signatures and i…
Jul 2026 · github.com · its alternatives →
19
sproof sign▲80
Signing made easy and safe | 100% made for Europe
2021 · sign.sproof.com · its alternatives →
20
Subnoto▲20
Electronic signatures rebuilt for modern security
Dec 2025 · subnoto.com · its alternatives →
21FP
Free PDF signing over email▲16
2016 · signandreturn.com · its alternatives →
22
SignTrace▲2
SignTrace - Sign with Trust. Verify with Confidence.
Aug 2026 · sign.magynta.com · its alternatives →
23
SignFile▲4
Send, sign, and verify legally-binding signatures. No credit card. Built for individuals, freelancers, and small teams.
Jul 2026 · signfile.io · its alternatives →
24
Blocksign, a Bitcoin service for legally signing any document▲17
Blockchain is a wonderful record keeper that can track every transaction that happens in the string.
2014 · blocksignit.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →