OpenSign Reviews & Product Details

An open-source document e-signing solution designed to provide a secure, reliable and free alternative to commercial platforms like DocuSign, PandaDoc, SignNow, Adobe Sign, Smartwaiver, SignRequest, HelloSign & Zoho sign. Developed under the an open source initative, our mission is to democratize the e-signing process, making it accessible and straightforward for everyone. The software can either be accessed as a hosted solution, which is free for life, or as a comprehensive SaaS offering. Features Secure Signing: Utilizes state-of-the-art cryptographic algorithms to ensure the security & integrity of your documents. User-Friendly Interface: Designed with usability in mind, making it easy for both technical and non-technical users. Multi-Platform Support: Compatible with various browsers and devices. Invite & collaborate users: Bring multiple people from your team into the signing process, all within your own infrastructure. Secure: Allows for the easy, secure and seamless organization of your documents using 'OpenSigDrive'. Audit Trails: Keeps a detailed log of all activities related to the document signing process including IP addresses and access timings. Completion Certificate: Generate secure completion certificate as soon as a document is signed by all participants. API Support: Provides a robust API for integration into other software and services.

Seller

OpenSignLabs

Product Description

Overview by

A S

Top-Rated Alternatives

View All Alternatives

OpenSign Integrations

(3)

Integration information sourced from real user reviews.

OpenSign Media

OpenSign Demo - Instant Self-Signing - Seal Deals on the Go!

The "Sign yourself" feature allows you to quickly upload, sign, and either download or print your digitally sealed document in mere seconds. Want to bring others into the loop? Simply hit 'Email' and share the signed copy. With OpenSign, you're always a step ahead in sealing the deal.

OpenSign Demo - OpenSign Draw Pad - Personalize with Authenticity!

Step into a seamless signing experience with OpenSign's Draw Pad feature. Whether you prefer to personally draw your signature for that touch of authenticity or choose to upload an image of your established signature, we've got you covered. It's all about maintaining the human element in digital ...

OpenSign Demo - OpenSign - Dashboard Overview

Dive into a comprehensive dashboard that offers a clear view of all signature-related activities. With OpenSign, effortlessly track documents that need your attention, recently sent out for signatures, and monitor the status of drafts. A holistic approach to manage your signing processes.

OpenSign Reviews (9)

G2 reviews are authentic and verified.

Here's how.

mahesh p.

11/20/2025

"Unbeatable Value with Transparent, Reliable Service"

5/5

What do you like best about OpenSign?

I find OpenSign to be the best open-source e-signature solution I have ever used. What truly sets it apart is the remarkable combination of transparency, reliability, and unbeatable value. I love the platform’s offer of lifetime free access paired with unlimited signatures for every user, which is a feature that absolutely stands out compared to most commercial e-signature tools. OpenSign has effectively solved our need for a dependable, professional, and affordable digital signature solution. I particularly appreciate how incredibly easy the initial setup was, requiring just a simple sign-up and immediate use. This ease of use makes it accessible and convenient for everyone. Review collected by and hosted on G2.com.

What do you dislike about OpenSign?

nothing Review collected by and hosted on G2.com.

Karansinh J.

Business Analysts

Information Technology and Services

Mid-Market (51-1000 emp.)

4/9/2025

Guest users or non-business users of the software, not included in G2 scores.

"All in one signature platform solution"

4.5/5

What do you like best about OpenSign?

The best part is its UI, which is easy to use, any user can easily understand its feature of it, It also provides me secure sign-in feature which is best for maintaining security, their customization option gives me the ideal appearance for all my docs, their help docs offer good support for understanding, i am using it since last 6 months. I am enjoying it, it also provides a webhook option so I can easily integrate a few of my required software, which is also easy to implement. Review collected by and hosted on G2.com.

What do you dislike about OpenSign?

They need to do little work in navigation part, otherwise rest is good. Review collected by and hosted on G2.com.

Prafull N.

Project Manager

Small-Business (50 or fewer emp.)

8/21/2025

"OpenSign is an excellent digital signing tool with a clean, intuitive interface."

4.5/5

What do you like best about OpenSign?

The most like feature in opensign is its easy to use UI Review collected by and hosted on G2.com.

What do you dislike about OpenSign?

Need some improvements in widget like checkbox and radio buttons.

the free resizing should be available for this Buttons. Review collected by and hosted on G2.com.

Emmanuel O.

Support Worker

Mid-Market (51-1000 emp.)

4/12/2025

Guest users or non-business users of the software, not included in G2 scores.

"User interface and userability"

3.5/5

What do you like best about OpenSign?

I love how easy the interface is to navigate and responsive the site is, I’ve never had any issues with the site in those aspects. Review collected by and hosted on G2.com.

What do you dislike about OpenSign?

The paid version is relatively pricey even though it offers alot Review collected by and hosted on G2.com.

Apurv K.

Sr Associate

Small-Business (50 or fewer emp.)

4/4/2025

"Opensign- Best tool for Signatures"

4.5/5

What do you like best about OpenSign?

It’s free. It gives you storage and allows you to send the files straight through email directly. No extra hard work Review collected by and hosted on G2.com.

What do you dislike about OpenSign?

The fact that I can’t send it to people other than those signing docs. Review collected by and hosted on G2.com.

David O.

Media Service Coordinator

Small-Business (50 or fewer emp.)

4/11/2025

"Great and user friendly interface"

4.5/5

What do you like best about OpenSign?

OpenSign is easy to use compared to some other contract-signing platforms. Review collected by and hosted on G2.com.

What do you dislike about OpenSign?

Like everything tech, sometimes it may experience some bugs. Review collected by and hosted on G2.com.

Pravin S.

Super wiser

Small-Business (50 or fewer emp.)

8/6/2024

Guest users or non-business users of the software, not included in G2 scores.

"Best alternative to docusign"

5/5

What do you like best about OpenSign?

Easily understandable UI, user-friendly, and cost-effective. Most features are free, including unlimited document creation and unlimited signature requests. Also available for self-hosting. Review collected by and hosted on G2.com.

What do you dislike about OpenSign?

Development is currently in progress, so we'll need to wait for more advanced features to be available Review collected by and hosted on G2.com.

Steve P.

Small-Business (50 or fewer emp.)

11/3/2023

"Finally the long awaited free & open source alternative to DocuSign"

5/5

What do you like best about OpenSign?

Straight forward & legally recognized document signing which makes signed documents immutable, multiple signers, option to draw or upload signature, etc.

The fact that its an open source tool and still does not compromise on any functionality. It was super easy to deploy, I just cloned the repo and ran "make build" and it was up and running locally. Plus the hassle free option of cloud hosted solution is cherry on the cake. Another thing I loved about OpenSign is their active community, with around 2k stars on github in a few days of launch they have one of the most engaged community of developers who have their eyes on the code and community support is awesome. I tried mailing them about my query and got a reply in less than an hour from the customer support. Review collected by and hosted on G2.com.

What do you dislike about OpenSign?

For the self-hosted version, they only support MailGun as the email provider, I would love to have the option to use SendGrid. Review collected by and hosted on G2.com.

Rahul O.

Mid-Market (51-1000 emp.)

11/4/2023

"Great open source document signing solution"

4.5/5

What do you like best about OpenSign?

The fact that it allows me to sign my PDF agreements and invite others to sign in a super user friendly way. 2 step verification feature is great, i can be sure that no unexpected person is accessing my confidential information. Review collected by and hosted on G2.com.

What do you dislike about OpenSign?

The color scheme followed can be a lot better. Though they are saying that their mobile apps are coming soon but currently we are having to manage it by accessing their website on mobile which is mobile friendly. Review collected by and hosted on G2.com.