100% free software
The public core has no subscription or per-user license fee. Budget separately for government fees, any professional help, and optional self-hosting.
FILLVISA OS VS GREENCARDHERO
An open-source GreenCardHero alternative. 100% free.
Beautiful forms. Your own hosting. Open code.
Prepare supported immigration forms at your own pace with software you can inspect and self-host. Fillvisa OS gives individuals and families a free browser-based starting point, without buying an application service package.
100% free software Self-hostable AGPL-3.0
IS FILLVISA OS A GREENCARDHERO ALTERNATIVE?
Yes, for supported forms.
Choose the guidance you need, too.
Fillvisa OS is a 100% free, self-hostable, AGPL-3.0 alternative for supported immigration form preparation. Use browser-based tools, inspect the source, and run your own copy.
GreenCardHero focuses on marriage green-card applications through desktop software with a questionnaire, document checklist, and filing guidance. Fillvisa OS provides a free software foundation while you organize the rest of your application. Fillvisa OS documentation · GreenCardHero overview
A FREE STARTING POINT
Prepare your forms.
Keep control of your tools.
If you want to work through supported forms yourself, Fillvisa OS gives you an approachable interface and an open-source foundation without a preparation software fee.
A focused form experience
Work through readable questions and clear sections, then review the result. Try a sample before deciding whether the experience suits your application.
A copy you can inspect
Explore the source or deploy it yourself under AGPL-3.0. You can try the public demo without first setting up a server.
Choose the help you need, too. A form interface is only one part of preparation. Decide how you will confirm requirements, organize evidence, and review your work. Our design perspective is not a measured usability comparison.
FREE FORM TOOLS AND PAID PREPARATION SOFTWARE
Fillvisa OS vs. GreenCardHero pricing
Fillvisa OS has no software license fee. GreenCardHero’s pricing page lists $299 for its preparation software. Compare the included guidance and your required forms as well as the price.
| Option | Software fee | Scope | Before choosing |
|---|---|---|---|
| Fillvisa OS | $0 | Supported open-source form tools | Check your release and outputs |
| GreenCardHero | $299 listed price | Guided marriage green-card preparation | Confirm current price and supported scenario |
| GreenCardHero free start | Free to begin | Questionnaire and parts of the checklist | Payment required to download completed forms and cover letters |
Source: GreenCardHero pricing. Government filing fees, professional help, and optional hosting are separate from these software prices.
Try the experience before choosing.
Explore the Fillvisa demo with fictional information. For either tool, test the form workflow and understand what remains to be done before submission.
Plan for more than form completion.
Include evidence collection, review, government fees, and any professional assistance in your budget. Free software does not make an entire immigration application cost-free.
A SIMPLER PREPARATION WORKFLOW
Open a form. Work through it. Review the result.
Try a supported form before changing your process. Check the exact release and output you plan to use.
- 01 / CHOOSE
Find your supported form
Check the form directory and repository. Confirm that your chosen release includes the workflow and form edition you need.
Browse forms → - 02 / PREPARE
Work in your browser
Complete the questions and review the guidance. Local browser progress does not automatically sync across devices; plan how you will preserve your work.
Try the demo → - 03 / REVIEW
Check the final output
Review supported PDF outputs or online autofill results. Form preparation and autofill do not replace your final review or the official submission process.
Check supported capabilities →
COMPARE THE PREPARATION EXPERIENCE
Open-source form tools or a guided desktop package?
Choose based on the forms you need and how much help you want organizing the application. Neither comparison column should be read as a promise of equal coverage.
| Need | Fillvisa OS | GreenCardHero |
|---|---|---|
| Main focus | Supported immigration form preparation. | Marriage green-card preparation for supported scenarios. |
| How you use it | Browser-based static frontend. | Downloadable Windows and Mac software. |
| Guidance | Check the guidance available for each supported form. | Personalized questionnaire, document checklist, and filing instructions. |
| Source & deployment | Public AGPL-3.0 code; self-hostable. | Desktop software under its own license; no open-source edition identified in reviewed sources. |
| Local work | Local browser progress; no automatic device sync. | Advertises offline use and sensitive data stored on your computer. |
| Application package | Organize supporting evidence and submission steps separately. | Advertises customized cover letters and assembly guidance. |
| Professional review | Arrange professional help separately. | Lawyer review is not included in the software price. |
| Support | No equivalent paid support package promised. | Customer support is advertised; verify availability. |
| Coverage | Verify exact forms, editions, and outputs in your release. | Check current supported forms and whether your situation is supported. |
| Moving your work | No direct GreenCardHero import promised. | Confirm export and transfer options before changing tools. |
Sources: Fillvisa OS, GreenCardHero overview, pricing and inclusions, and desktop license.
FILLVISA OS MAY FIT WHEN
You want free tools and source access.
- Your required forms are supported in your chosen release.
- You are comfortable organizing the application yourself.
- You value inspectable code and optional self-hosting.
- You can preserve your local browser progress.
- You will arrange any additional review separately.
GREENCARDHERO MAY FIT WHEN
You prefer a guided marriage application workflow.
Evaluate whether the desktop experience and its preparation guidance match your application and preferred way of working.
Source access, self-hosting, and local data storage are different considerations. Local storage alone does not make software open-source or establish a security advantage.
SELF-HOSTABLE. AGPL-3.0 LICENSED.
Your copy. Your deployment. Public source.
Fillvisa OS is a static frontend. The open-source core does not require a backend. Start with the repository instructions and verify your deployment before using it for real work.
01 / GET THE CODE
Start with the project.
Choose a repository release, review its included forms and documentation, and keep a record of the version you deploy.
View the repository →02 / HOST YOUR COPY
Serve the static files.
Use a static web server and test the form workflow, asset loading, downloads, and saved progress. Your deployment remains your responsibility.
Read setup documentation →03 / UNDERSTAND THE LICENSE
Built on AGPL-3.0.
Review the license before adapting, distributing, or operating a modified version for others. The repository’s license text is the authoritative reference.
Read the license →Control comes with responsibility. Plan updates, access controls, device security, and backups. Self-hosting a static frontend does not create a shared client database or cloud sync. Source availability alone is not a security certification.
BEFORE YOU CHANGE TOOLS
Keep your application organized from the start.
Try Fillvisa OS on a sample before moving work in progress. Avoid assuming that a different tool will recreate an entire application package.
List the forms and help you need
Identify the documents and outputs you plan to prepare. Separate software needs from filing guidance, customer support, and professional help you may want.
Check coverage in your release
Use the directory and repository to verify each supported form. Test the actual output with fictional data, including repeated fields or extra sections.
Preserve your existing work
If you have started with GreenCardHero, confirm how to retain your answers and documents. There is no promised one-click import into Fillvisa OS.
Plan storage and review
Local browser progress does not automatically follow you to another device. Check export and backup options, keep your documents organized, and decide who will review the completed work.
Check any existing service commitment
Before cancelling a package, review its terms and the help you would lose. Verify your alternative process end to end and follow the relevant official filing instructions.
DIRECT ANSWERS
Fillvisa OS vs. GreenCardHero: frequently asked questions
Is Fillvisa OS a free GreenCardHero alternative?
Yes, for supported immigration form preparation. Fillvisa OS is free, self-hostable software under AGPL-3.0. It does not promise the same complete application guidance or form coverage as GreenCardHero.
Is Fillvisa OS really 100% free?
Yes. The open-source core has no subscription or per-user software license fee. Hosting, maintenance, government fees, professional services, and other tools are separate costs.
How much does GreenCardHero cost?
Its pricing page lists $299 as reviewed on October 29, 2026. Confirm the current offer before purchasing. The software price is separate from government filing fees and professional assistance.
Can I start GreenCardHero for free?
Yes. Its pricing page says you can begin for free, with payment required to download completed application forms and cover letters. That differs from Fillvisa OS’s free open-source software license.
Is GreenCardHero desktop or browser software?
GreenCardHero offers Windows and Mac downloads. Fillvisa OS is a browser-based static frontend that you can self-host. Choose the deployment model that suits how you work.
Does local storage mean GreenCardHero is open-source?
No. Where information is stored and what rights a software license grants are different questions. Fillvisa OS publishes AGPL-3.0 source code; no equivalent open-source GreenCardHero edition was identified in the reviewed sources.
Does Fillvisa OS include a complete marriage application checklist?
Do not assume equivalent package guidance. Check the guidance and outputs available for your supported forms, then plan evidence collection, package assembly, and final review separately.
Does either option include a lawyer?
Fillvisa OS is software, not a legal service. GreenCardHero states that lawyer review is not included. Arrange qualified professional assistance separately when you need it.
Can I import GreenCardHero work into Fillvisa OS?
No direct import is promised. Preserve your answers and documents, check supported transfer options, and test with sample data before moving work in progress.
Can I self-host Fillvisa OS?
Yes. Serve the static frontend using your own web server and follow the repository instructions. Test the workflow and plan updates, access controls, and backups.
Does Fillvisa OS sync progress across devices?
The open-source workflow uses local browser progress and does not automatically sync across devices. Check export and backup options for your release and keep completed files organized.
Is this a comparison of Fillvisa Plus?
No. This page covers Fillvisa OS, the free, self-hostable AGPL-3.0 edition. Paid hosted products are separate and are not included in this comparison.
Sources & comparison methodology
Published by Fillvisa, not an independent review site. First-party documentation reviewed October 29, 2026. This page compares software scope rather than providing application eligibility advice.
- Fillvisa OS repository and AGPL-3.0 license — scope and deployment.
- GreenCardHero product overview
- GreenCardHero pricing and inclusions
- Windows and Mac downloads
- Desktop license agreement
Confirm current prices, supported form editions, and service availability before choosing. This comparison does not repeat government fee amounts or processing-time estimates from vendor marketing. We have not audited either product’s security, tested a direct migration, or performed a controlled usability study.
GreenCardHero is a trademark of its respective owner. Fillvisa is not affiliated with or endorsed by GreenCardHero.
FREE TO USE. OPEN TO EXPLORE.
Make the workflow your own.
Get Fillvisa OS. Inspect the code. Host your copy.
100% free software, licensed under AGPL-3.0.