The OpenSign Insider’s Guide
Everything we know about OpenSign in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
OpenSign
The Insider’s Guide
Open-source PDF signing with unlimited free signatures
Every plan, grade, refund rule and rival among e-signature and proposal tools, read from OpenSign’s own pages.
Made by OpenSignLabs · checked Oct 17, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from OpenSign’s own pages, its app-store listings and our grades. Every fact in it is on OpenSign’s page too, where it is kept up to date. Checked Oct 17, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.6
GPA, above 7 of the 13 other e-signature and proposal tools we grade
OpenSign is an open-source e-signature app for signing PDFs yourself and requesting signatures from others, with templates, signing order, document expiry and a completion certificate for each signed file. Both the free cloud plan and the free self-hosted version allow unlimited signatures. Paid plans add API access, webhooks, field validations, bulk sending and team features.
To get you started, here are 9 things to know about OpenSign, taken from its own pages and our grades.
The cloud version is a web app with templates to set up; hosting it yourself means following the self-host guide and running a server.
- 1
Best for unlimited free e-signatures
Paying adds reminders, an API and team sharing.
- 2
Paid plans start at $9.99 a month
As its pricing page puts it: $9.99 per month, billed yearly ($29.99 billed monthly).
- 3
There is a free plan
OpenSign Free (cloud): unlimited signatures and templates, signing order, completion certificates, Dropbox import and email notifications.
- 4
It runs on Web
Web.
- 5
Unlimited free signatures
Both the free cloud plan and the self-hosted version allow unlimited signatures, requests to others and templates.
- 6
Open source and self-hostable
The code is on GitHub under the AGPL-3 license and can be installed on your own servers by following the self-host guide.
- 7
Completion certificates
Signed files are sealed with a certificate, so any later change breaks the signature, and come with a log of access and timestamps.
- 8
A 2.6 GPA, above 7 of 13
That is against the other e-signature and proposal tools we grade, on value, the free plan, features, ease of use and platforms.
- 9
You could make this
What OpenSign does at its core is documents and templates, and that is the kind of thing an AI app builder makes well.
OpenSign at a glance
- Pricing
- Free plan, from $9.99 per month, billed yearly ($29.99 billed monthly)
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- Web
- Made by
- OpenSignLabs
- Category
- E-Signatures & Proposals
- Our grade
- 2.6 GPA, good
The report card
Best for unlimited free e-signatures
OpenSign's free cloud plan lets you send unlimited documents with templates and signing order, which nothing else here matches, and you can host it yourself too. Paying adds reminders, an API and team sharing. But three people on Teams pay about $60 a month, and your own branding needs Enterprise.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | C | Teams is $19.99 a user a month billed yearly ($39.99 monthly), so about $60 a month for three. That's the dearer end of this category, for shared templates and your own storage. The free cloud plan covers 20 documents a month if you can do without sharing; self-hosting doesn't count. |
| Free plan and trial | A | The free cloud plan has unlimited signatures and templates, 14 field types, signing order and completion certificates, with no cap a normal person would reach. Automatic reminders and the API are the paid bits. |
| Features | C | Templates, signing order, expiry dates, decline, sealed completion certificates, plus API, webhooks, Zapier and embedded signing on paid plans. The gaps: custom branding needs Enterprise, there's no mobile app, and payment requests are still listed as coming soon. |
| Ease of use | C | No store rating on record. The cloud version is a web app with templates to set up; hosting it yourself means following the self-host guide and running a server. |
| Platforms and integrations | B | Web only, with Zapier, Dropbox and Gmail, and an API, webhooks and embedded signing on paid plans. No phone app yet, so it's web with integrations. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who OpenSign is for
- Great if you want unlimited e-signatures without paying a thing
- A treat if you'd rather run open-source software on your own servers
- Good for developers who want an API and webhooks for $9.99 a month billed yearly
Who it is not for
- Not for you if you want your own logo on documents, as branding needs Enterprise
- Skip it if you sign on your phone, as the mobile app is still coming
- Pricey if three of you want shared templates, at about $60 a month on Teams
Good to know
Good for
- Individuals and small businesses that want unlimited signatures at no cost
- Developers who want to host an open-source signing tool themselves
- Teams that need API sends and webhooks for a low yearly price
Worth knowing
- API sends, public links and bulk sending use premium credits: 240 a year on Professional yearly, 100 a month on the monthly plan.
- SSO, custom branding, a custom domain and an uptime SLA come only with Enterprise, priced on request.
- Support for free users is through GitHub issues and Discord; official support comes with the cloud plans.
- Payment requests and a mobile app are listed as coming soon on the Teams plan.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$9.99
A month to start. There is a free plan too
OpenSign has a free plan. Paid plans start at $9.99 per month, billed yearly ($29.99 billed monthly).
That's the dearer end of this category, for shared templates and your own storage.
OpenSign Free
$0
Hosted: unlimited digital signatures and templates, 14 field types, signing order, completion certificates and public profiles.
OpenSign Professional
$9.99
per month, billed yearly ($29.99 billed monthly)
Field validations, webhooks, Zapier, API access, auto reminders, embedded signing and 240 premium credits a year.
OpenSign Teams
$19.99
per user / month, billed yearly ($39.99 billed monthly)
Adds teams and organizations, shared templates, your own cloud storage and 500 premium credits a year.
OpenSign Enterprise
Custom
Price on request: custom domain, custom branding, an uptime SLA, SSO and priority support.
OpenSign Self-Hosted
$0
The open-source version you host yourself from GitHub, with unlimited signatures and templates.
Teams (self-hosted)
$720
per year for up to 3 users, self-hosted
Paid self-hosted license with 1,500 premium credits, API access, embedded signing, public links, kiosk mode and analytics.
The free plan
OpenSign Free (cloud): unlimited signatures and templates, signing order, completion certificates, Dropbox import and email notifications.
Read from opensignlabs.com on Oct 17, 2026.
Ways to pay less
Annual discount
Lower price with yearly billing
Professional is $9.99 a month billed yearly against $29.99 monthly, and Teams $19.99 per user a month yearly against $39.99 monthly.
Stated on opensignlabs.com
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
Open-source PDF signing with unlimited free signatures. Here is what it does, as its own site describes it, and what it covers: open source, self-hostable, public API, templates, documents.
The gaps: custom branding needs Enterprise, there's no mobile app, and payment requests are still listed as coming soon.
- Unlimited free signatures
- Both the free cloud plan and the self-hosted version allow unlimited signatures, requests to others and templates.
- Open source and self-hostable
- The code is on GitHub under the AGPL-3 license and can be installed on your own servers by following the self-host guide.
- Completion certificates
- Signed files are sealed with a certificate, so any later change breaks the signature, and come with a log of access and timestamps.
- Templates and signing order
- Reusable templates, 14 field types, signing order, document expiry and an option for signers to decline.
- API, webhooks and Zapier
- Paid plans add API access, webhooks, a Zapier integration, embedded signing and your own Gmail or SMTP account for emails.
- Premium credits
- Paid plans include credits used for API sends, public signing links, bulk sends and kiosk-mode signing in person.
Where it runs
- Web
What it works with
- Zapier
- Dropbox
- Gmail
OpenSign is made by OpenSignLabs.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
7/13
Other e-signature and proposal tools it is graded above
OpenSign's GPA of 2.6 is higher than 7 of the 13 other e-signature and proposal tools we grade, and level with 4.
It stands best on free plan and trial (A, above 13 of 13) and worst on features (C, above 0).
Its paid plans start at $9.99 a month, against a middle price of $11.50 for the category: 2 of the 13 others that charge start lower.
On features, ease of use and platforms it scores 2.3 out of 4. 2 tools score higher and cost less.
Each grade against the category
Every bar is all 14 e-signature and proposal tools we grade, cut by the letter each got. OpenSign’s own letter is outlined.
- CValue for moneyAbove 4 of 13
- AFree plan and trialAbove 13 of 13
- CFeaturesAbove 0 of 13
- CEase of useAbove 1 of 13
- BPlatforms and integrationsAbove 0 of 13
Price against what you get
Each dot is one of 14 e-signature and proposal tools. Further left costs less; higher up scores better on features, ease of use and platforms. OpenSign is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
You could make this
What OpenSign does at its core is documents and templates, and that is the kind of thing an AI app builder makes well.
You would give up one thing, listed below, and little else. It costs $119.88 a year. An AI app builder starts at about $19 a month on our listings, and you only need it while you build. OpenSign is open source, so there is a third way: take its code and run it yourself.
What you could make
- Documents and templates: an app builder makes these well.
- It runs in a browser, which is where something home-made would run too.
What you could not
- It plugs into other products, Zapier, Dropbox and Gmail among them, and has an API.
What this rests on. OpenSign’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Documenso, Docusign, SignWell, BoldSign and Zoho Sign
The 5 tools OpenSign is most often weighed against, with where each one differs from it.
- 2.2GPA
Documenso
Free plan · from $25/mo
- 2.6GPA
Docusign
Free trial · from $11/mo
E-signature service for sending, signing and tracking agreements.
- OpenSign has a free plan. Docusign does not, though it has a free trial.
- Only Docusign lists iOS and Android apps.
- OpenSign is open source and self-hostable, according to its own site.
- 2.6GPA
SignWell
Free plan · from $10/mo
E-signatures priced by sender, with unlimited documents on paid plans.
- OpenSign is open source and self-hostable, according to its own site.
- 3.0GPA
BoldSign
Free plan · from $5/mo
Low-cost e-signature app and API from Syncfusion.
- Only BoldSign lists iOS and Android apps.
- OpenSign is open source and self-hostable, according to its own site.
- 3.0GPA
Zoho Sign
Free plan · from $10/mo
Per-user e-signature app from Zoho with a free single-user plan.
- Only Zoho Sign lists macOS, Windows, iOS and Android apps.
- OpenSign is open source and self-hostable, according to its own site.
- Zoho Sign also covers forms.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
14
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is OpenSign free?
OpenSign has a free plan. OpenSign Free (cloud): unlimited signatures and templates, signing order, completion certificates, Dropbox import and email notifications.
How much does OpenSign cost?
OpenSign lists 6 plans. OpenSign Free: $0.
What platforms does OpenSign work on?
OpenSign is available on Web.
Does OpenSign offer any discounts?
OpenSign publicly lists the following: Lower price with yearly billing.
Does OpenSign have an Android app?
No Android app was listed when its pages were read on Oct 17, 2026. OpenSign is listed for Web.
Does OpenSign have an iPhone app?
No iPhone app was listed when its pages were read on Oct 17, 2026. OpenSign is listed for Web.
Is OpenSign open source?
Yes. OpenSign is open source, according to its own site.
Does OpenSign have an API?
Yes. OpenSign offers a public API, according to its own site.
What does OpenSign integrate with?
OpenSign's listing names Zapier, Dropbox and Gmail. A listing names up to eight integrations, so it may connect to more.
Who makes OpenSign?
OpenSign is made by OpenSignLabs.
What are the alternatives to OpenSign?
The closest alternatives to OpenSign in our directory are Documenso, Docusign, SignWell, BoldSign and Zoho Sign.
How does OpenSign compare with other e-signature and proposal tools?
OpenSign's GPA of 2.6 is higher than 7 of the 13 other e-signature and proposal tools we grade, and level with 4.
Is OpenSign good value for money?
ToolGPA grades OpenSign C for value for money. Its paid plans start at $9.99 a month, against a middle price of $11.50 for the category: 2 of the 13 others that charge start lower.
Could I make my own version of OpenSign?
What OpenSign does at its core is documents and templates, and that is the kind of thing an AI app builder makes well.
Where this guide comes from
The prices, plans, platforms and features were read from OpenSign’s own pages on Oct 17, 2026, and the grades were given on Oct 17, 2026. Graded from this listing, whose facts were read from OpenSign's own pages on 17 October 2026. Its pricing page showed no plans when we checked, so the prices here are the listing's. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by OpenSignLabs. Prices change, so check opensignlabs.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
1,880
Tools graded, in 47 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
ToolGPA is free to read. It may earn a commission from affiliate links and it works with sponsors, but anything paid for is labelled and no one can pay for a grade. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
1,880
tools graded
47
categories
426
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- OpenSign, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/opensign
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "OpenSign: The Insider's Guide", checked Oct 17, 2026. https://toolgpa.com/tools/opensign
Know someone choosing between e-signature and proposal tools?
Send them this guide: toolgpa.com/tools/opensign/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded e-signature and proposal tools after OpenSign, each with an Insider's Guide of its own.
- E-Signatures & Proposals Insider's GuideEvery one of the 14 e-signature and proposal tools we grade, compared
- BoldSign Insider's GuideLow-cost e-signature app and API from Syncfusion3.0 GPA
- Zoho Sign Insider's GuidePer-user e-signature app from Zoho with a free single-user plan3.0 GPA
- Docusign Insider's GuideE-signature service for sending, signing and tracking agreements2.6 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what OpenSign’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. ToolGPA uses affiliate links and may earn a commission from them, and it works with sponsors; anything paid for is labelled, and no one can pay for a grade. OpenSign is a trademark of its owner, and this guide is not made, paid for or approved by OpenSignLabs. Prices and plans change: check opensignlabs.com before you buy.