The Form.io Insider’s Guide
Everything we know about Form.io 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.
Form.io
The Insider’s Guide
JSON form and API platform for developers, hosted or self-hosted
Every plan, grade, refund rule and rival among form and survey tools, read from Form.io’s own pages.
Made by Form.io · checked Nov 13, 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 Form.io’s own pages, its app-store listings and our grades. Every fact in it is on Form.io’s page too, where it is kept up to date. Checked Nov 13, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
1.6
GPA, above 0 of the 60 other form and survey tools we grade
Form.io is a platform for building forms and the APIs behind them, driven by JSON form definitions. It is sold as Docker containers that a customer runs in its own environments and databases, plus a hosted SaaS project on portal.form.io. Pricing is by project and environment, not by submissions or users.
To get you started, here are 9 things to know about Form.io, taken from its own pages and our grades.
It is priced by project and environment rather than by usage, which puts it far above ordinary form builders.
- 1
Best for engineering teams embedding forms in their own apps
Form.io builds forms from JSON and serves them through an API, either hosted on its portal or in Docker containers you run yourself.
- 2
Paid plans start at $300 a month
As its pricing page puts it: $300 per month, hosted SaaS project; self-hosted from $660 per month.
- 3
You can try it first
30-day free trial of the hosted SaaS project, no credit card; the project turns read-only afterward
- 4
It runs on Web
Web.
- 5
JSON-driven forms
Forms are defined in JSON, rendered by the open-source formio.js library and stored through the platform's API.
- 6
Self-hosted containers
The platform ships as Docker containers that run in the customer's own environments and databases.
- 7
PDF forms
Optional PDF servers display PDF forms and export submissions to PDF.
- 8
A 1.6 GPA, above 0 of 60
That is against the other form and survey tools we grade, on value, the free plan, features, ease of use and platforms.
- 9
You could make this
A form at its plainest is questions, a button and a table of answers.
Form.io at a glance
- Pricing
- Free trial, from $300 per month, hosted SaaS project; self-hosted from $660 per month
- Free plan
- No
- Free trial
- 30-day free trial of the hosted SaaS project, no credit card; the project turns read-only afterward
- Runs on
- Web
- Made by
- Form.io
- Category
- Forms & Surveys
- Our grade
- 1.6 GPA, weak
The report card
Best for engineering teams embedding forms in their own apps
Form.io builds forms from JSON and serves them through an API, either hosted on its portal or in Docker containers you run yourself. It is priced by project and environment rather than by usage, which puts it far above ordinary form builders.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | D | The hosted project is $300 a month and self-hosting starts at $660, against a forms middle of $20 and a dearest tenth from $66. |
| Free plan and trial | C | A 30-day trial needs no card, but the project turns read-only afterward and it may not hold personal data. |
| Features | C | Forms, API and PDF output are covered, but reporting, accessibility, multi-tenancy and the embedded builder are paid add-ons. |
| Ease of use | D | It is built for developers: JSON definitions, and Docker containers and databases for the self-hosted route. |
| Platforms and integrations | C | Web only, with an API and an open-source JavaScript library, and no integrations list on record. |
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 Form.io is for
- Fits if your developers need forms inside your own application and its data
- Makes sense if you must host data in your own infrastructure
Who it is not for
- Skip it if you want a free plan, because none exists
- Pricey if you only need a few forms: the lowest hosted plan is $300 a month
- Tight if you need several environments, since each needs its own server license
- Watch out: the hosted project may not collect personal or sensitive data
- Not for you if you want a no-code builder without developers
Good to know
Good for
- Engineering teams embedding forms and form building in their own applications
- Organizations that must host data in their own infrastructure
Worth knowing
- There is no free plan; the hosted SaaS project is $300 a month after the 30-day trial, and the self-hosted options start higher.
- Self-hosted minimum is one project plus one API server environment, $660 a month; each extra environment needs its own server license.
- The SaaS project must not hold personal or sensitive data, per the pricing page, and lacks some security features.
- Add-ons per month: Reporting UI $660, accessibility $495, multi-tenancy $330, embedded builder $660. Five developer licenses are $2,640 a year.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$300
A month to start
Form.io is a paid product with a free trial, starting at $300 per month, hosted SaaS project; self-hosted from $660 per month.
SaaS Enterprise Project
$300
per month, hosted on portal.form.io
One project with unlimited forms and developers, 1M submissions a month, 25 PDF-first forms and 1,000 PDF downloads. No PII; some security features missing.
Enterprise Level Project
$330
per month per project; at least one required
Unlimited forms, resources, developers, form builders and submissions, with a self-hosted developer portal.
API Server
$330
per month per environment
One server environment with unlimited API calls and submissions. An API Server or API Plus Server is required for each environment.
API Plus Server
$660
per month per environment
Adds audit logging, submission data separation, field-level encryption and container security scanning.
PDF Server
$330
per month per environment
Optional. Unlimited PDF submission downloads. The PDF Plus Server is $660 per month and adds uploads and a template designer.
Trying it first
30-day free trial of the hosted SaaS project, no credit card; the project turns read-only afterward
Read from form.io on Nov 13, 2026.
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
JSON form and API platform for developers, hosted or self-hosted. Here is what it does, as its own site describes it, and what it covers: open source, self-hostable, public API, forms.
Forms, API and PDF output are covered, but reporting, accessibility, multi-tenancy and the embedded builder are paid add-ons.
- JSON-driven forms
- Forms are defined in JSON, rendered by the open-source formio.js library and stored through the platform's API.
- Self-hosted containers
- The platform ships as Docker containers that run in the customer's own environments and databases.
- PDF forms
- Optional PDF servers display PDF forms and export submissions to PDF.
- Multi-tenancy and embedded builder
- Paid add-ons support tenant-separated forms and data, and an embedded form builder inside your own application.
- Security options
- API Plus adds audit logging, field-level encryption and data separation for compliance needs.
Where it runs
- Web
What it works with
Its own pages name no integrations.
Form.io is made by Form.io.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
0/60
Other form and survey tools it is graded above
Form.io's GPA of 1.6 is higher than 0 of the 60 other form and survey tools we grade.
It stands best on free plan and trial (C, above 4 of 60) and worst on value for money (D, above 0).
Its paid plans start at $300 a month, against a middle price of $19.50 for the category: 50 of the 51 others that charge start lower.
On features, ease of use and platforms it scores 1.7 out of 4. 50 tools score higher and cost less.
Each grade against the category
Every bar is all 61 form and survey tools we grade, cut by the letter each got. Form.io’s own letter is outlined.
- DValue for moneyAbove 0 of 60
- CFree plan and trialAbove 4 of 60
- CFeaturesAbove 0 of 60
- DEase of useAbove 0 of 60
- CPlatforms and integrationsAbove 0 of 60
Price against what you get
Each dot is one of 53 form and survey tools. Further left costs less; higher up scores better on features, ease of use and platforms. Form.io 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
A form at its plainest is questions, a button and a table of answers.
What Form.io does at its core is forms, 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 $3,600 a year. An AI app builder starts at about $20 a month on our listings, and you only need it while you build. Form.io is open source, so there is a third way: take its code and run it yourself.
What you could make
- Forms: an app builder makes this well.
- It runs in a browser, which is where something home-made would run too.
What you could not
- An API that other software can build on.
What this rests on. Form.io’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
Formstack, FormAssembly, Jotform, Formaloo and Feathery
The 5 tools Form.io is most often weighed against, with where each one differs from it.
- 2.2GPA
Formstack
Free trial · from $83/mo
No-code forms with document generation and eSignatures.
- Form.io is open source and self-hostable, according to its own site.
- Formstack also covers templates, workflow automation and no-code.
- 2.0GPA
FormAssembly
Paid
Form and workflow platform for regulated and Salesforce teams.
- Only FormAssembly lists iOS and Android apps.
- Form.io is open source and self-hostable, according to its own site.
- FormAssembly also covers workflow automation and documents.
- 3.0GPA
Jotform
Free plan · from $34/mo
No-code form builder with payments, e-signatures and workflows.
- Jotform has a free plan. Form.io does not, though it has a free trial.
- Only Jotform lists iOS and Android apps.
- Form.io is open source and self-hostable, according to its own site.
- 2.6GPA
Formaloo
Free plan · from $19/mo
Form, survey and portal builder with workflows and PDFs.
- Formaloo has a free plan. Form.io does not, though it has a free trial.
- Form.io is open source and self-hostable, according to its own site.
- Formaloo also covers databases, workflow automation, no-code and surveys.
- 1.8GPA
Feathery
Paid
Workflow and document automation built on forms for finance.
- Form.io is open source and self-hostable, according to its own site.
- Feathery also covers workflow automation and documents.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
12
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 Form.io free?
No, Form.io is a paid product, but you can try it first. 30-day free trial of the hosted SaaS project, no credit card; the project turns read-only afterward.
How much does Form.io cost?
Form.io lists 5 plans. SaaS Enterprise Project: $300 per month, hosted on portal.form.io.
What platforms does Form.io work on?
Form.io is available on Web.
Does Form.io have an Android app?
No Android app was listed when its pages were read on Nov 13, 2026. Form.io is listed for Web.
Does Form.io have an iPhone app?
No iPhone app was listed when its pages were read on Nov 13, 2026. Form.io is listed for Web.
Is Form.io open source?
Yes. Form.io is open source, according to its own site.
Does Form.io have an API?
Yes. Form.io offers a public API, according to its own site.
Who makes Form.io?
Form.io is made by a company of the same name.
What are the alternatives to Form.io?
The closest alternatives to Form.io in our directory are Formstack, FormAssembly, Jotform, Formaloo and Feathery.
How does Form.io compare with other form and survey tools?
Form.io's GPA of 1.6 is higher than 0 of the 60 other form and survey tools we grade.
Is Form.io good value for money?
ToolGPA grades Form.io D for value for money. Its paid plans start at $300 a month, against a middle price of $19.50 for the category: 50 of the 51 others that charge start lower.
Could I make my own version of Form.io?
A form at its plainest is questions, a button and a table of answers. What Form.io does at its core is forms, 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 Form.io’s own pages on Nov 13, 2026, and the grades were given on Nov 13, 2026. Graded from this listing, whose facts were read from Form.io's own pages on 13 November 2026. 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 Form.io. Prices change, so check form.io before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
5,038
Tools graded, in 95 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.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
5,038
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Form.io, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/form-io
- 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, "Form.io: The Insider's Guide", checked Nov 13, 2026. https://toolgpa.com/tools/form-io
Know someone choosing between form and survey tools?
Send them this guide: toolgpa.com/tools/form-io/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded form and survey tools after Form.io, each with an Insider's Guide of its own.
- Forms & Surveys Insider's GuideEvery one of the 61 form and survey tools we grade, compared
- Google Forms Insider's GuideForm, survey and quiz builder that comes with a Google Account3.2 GPA
- Jotform Insider's GuideNo-code form builder with payments, e-signatures and workflows3.0 GPA
- Fillout Insider's GuideForm builder with unlimited seats, payments and scheduling2.8 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 Form.io’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. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Form.io is a trademark of its owner, and this guide is not made, paid for or approved by Form.io. Prices and plans change: check form.io before you buy.