No software subscription
Use the open-source core with no per-user license fee. Budget separately for any hosting, support, and business systems your workflow still requires.
FILLVISA OS VS INSZOOM
An open-source INSZoom alternative. 100% free.
Beautiful forms. Your own hosting. Open code.
For immigration professionals who want focused form preparation without a software subscription. Fillvisa OS is free to use, open to inspect, and ready to self-host—while you choose the other tools your practice needs.
100% free software Self-hostable AGPL-3.0
IS FILLVISA OS AN INSZOOM ALTERNATIVE?
For immigration form preparation, yes.
For your entire practice, compare the scope.
Fillvisa OS is a 100% free, self-hostable, AGPL-3.0 alternative for the supported immigration form-preparation part of an INSZoom workflow. It gives you browser-based tools and public source code. It does not replace INSZoom’s full practice management platform.
INSZoom combines immigration forms with global case workflows, stakeholder portals, and practice operations. Fillvisa OS can be useful when you want a standalone form tool and already handle those responsibilities elsewhere. Fillvisa OS documentation · INSZoom features overview
CHOOSE THE SCOPE YOU NEED
Sometimes the right tool
has a smaller job to do.
If your immediate need is to prepare supported immigration forms, you may prefer a focused tool over adopting a broader platform. Fillvisa OS keeps that choice open.
A focused form experience
Readable questions and clear sections keep attention on the preparation task. Try the same sample form in your current workflow and the Fillvisa demo.
Control over your copy
Inspect the public code, choose your deployment, and adapt the project under its license. Self-hosting lets you operate the form tool yourself.
Fit matters more than feature count. A smaller scope can be useful if you do not need the surrounding platform. It creates gaps if you do. Our design perspective is not a measured claim that INSZoom is harder to use.
SOFTWARE COST, WITH CONTEXT
Fillvisa OS vs. INSZoom pricing
Fillvisa OS has a $0 software license fee. The official INSZoom pages reviewed do not publish a subscription amount. Request a current proposal based on your organization’s needs.
| Option | Software cost | Scope | What to verify |
|---|---|---|---|
| Fillvisa OS | $0 license fee | Supported open-source form tools | Deployment, maintenance, and other tools are separate |
| INSZoom | Request current pricing | Hosted immigration case platform | Users, countries, capabilities, services, and contract terms |
| INSZoom global framework | Confirm subscription requirements | Country-specific global case capabilities | Enterprise eligibility and available forms by country |
Sources: Mitratech INSZoom and Global Forms Framework documentation. We do not use unverified directory prices as a current vendor quote.
Keep form software costs at zero.
Fillvisa OS has no per-user software license charge. Use the public core, inspect its code, and self-host your copy under AGPL-3.0.
Compare the complete operating cost.
Include hosting, updates, staff time, and systems you retain. Ask about onboarding, migration, support, country subscriptions, and integration costs in any INSZoom proposal. A free form tool does not reproduce a global case platform.
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 →
PREPARATION TOOLS AND GLOBAL CASEWORK
Choose the scope your practice needs.
INSZoom supports workflows involving clients, employers, and immigration teams. Fillvisa OS offers a focused preparation tool for supported forms when you already manage the surrounding work elsewhere.
| Need | Fillvisa OS | INSZoom |
|---|---|---|
| Core purpose | Supported immigration form preparation. | Cloud-based immigration case management for firms and corporate teams. |
| Forms & questionnaires | Supported USCIS PDF workflows and DS-160 tools; verify your release. | Questionnaires populate forms; paper and online filing capabilities are advertised. |
| Global coverage | Check supported forms; no equivalent global case platform is claimed. | U.S., Canadian, and global workflows; country access and form availability vary. |
| Case processes | Manage case stages, assignments, and deadlines separately. | Configurable workflows, milestone tracking, and deadline alerts. |
| Stakeholder portals | No hosted client accounts or shared cloud workspace in the core. | Self-service portals for document sharing and case updates. |
| Corporate integrations | No native INSZoom or HR-system integration promised. | Advertises HR-system API integrations; confirm scope and implementation. |
| Documents & reporting | Preserve outputs and manage practice records separately. | Digital file assembly and configurable case reporting. |
| Billing & payments | Not included in the open-source core. | Invoice generation and payment integrations; verify your package. |
| Source & hosting | Public AGPL-3.0 code; self-hostable static frontend. | Hosted commercial platform; no self-hostable open-source edition identified in reviewed sources. |
| Saved work & migration | Local browser progress; no automatic sync or direct INSZoom import. | Centralized case data; confirm export options and migration scope with Mitratech. |
Sources: Fillvisa OS, INSZoom overview, features and integrations, and global framework.
FILLVISA OS MAY FIT WHEN
You want an independent form tool.
- Your required forms are supported in the release you choose.
- You want free software with public source code.
- You prefer to control your deployment.
- Your other systems cover casework and client communication.
- You can preserve local work and maintain your copy.
INSZOOM MAY FIT WHEN
Your cases involve a wider organization.
Employer access, global country workflows, shared records, integrations, and reporting may be essential to your operation. Evaluate those requirements before replacing a connected platform.
Fillvisa OS can also serve a separate supported preparation task while you retain your existing systems. Plan how information moves between them; this is not a claim of automatic integration.
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.
SWITCH WITH A CLEAR PLAN
Test the fit before moving active work.
Start with one complete preparation workflow. Keep your existing process available until you know what the open-source edition covers.
Inventory your actual requirements
List forms, outputs, client communication, deadlines, billing records, accounting, and staff access. Identify which tasks can move to a form tool and which must remain in a practice management system.
Run a representative sample
Use fictional information to test a typical form and an edge case. Review the exported output and saved-progress behavior, including what happens when you close and reopen the browser.
Check exports and records
Confirm INSZoom’s export options and preserve your source records. Test only supported imports. Matter relationships, documents, notes, calendars, and financial records require separate handling; form answers do not recreate a practice database.
Prepare your deployment
Assign responsibility for hosting, updates, access, and backups. Document how users preserve local work and where completed files are stored.
Decide what stays and what moves
Compare the full operational cost and effort. Keep any tools you still need, and verify records and workflows before cancelling an existing service.
DIRECT ANSWERS
Fillvisa OS vs. INSZoom: frequently asked questions
Is Fillvisa OS an open-source INSZoom alternative?
Yes, for supported immigration form preparation. Fillvisa OS is free, self-hostable software under AGPL-3.0. It does not replace INSZoom’s entire global case management platform.
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 business tools are separate costs.
How much does INSZoom cost?
The official pages reviewed on October 29, 2026 did not publish a subscription amount. Request a current proposal from Mitratech and confirm users, country coverage, included capabilities, services, and contract terms.
Does INSZoom support global immigration work?
Yes. Mitratech describes U.S., Canadian, and global capabilities. Its Global Forms Framework documentation describes country subscriptions for Enterprise clients and notes that available forms vary by country. Confirm the scope in your proposal.
Does Fillvisa OS offer the same country coverage?
No equivalent global coverage is claimed. Check the repository and your chosen release for the exact forms and outputs you need before adopting Fillvisa OS.
Does Fillvisa OS include client or employer portals?
The open-source core does not include hosted client or employer accounts or a shared cloud workspace. Retain a separate system if those capabilities are part of your process.
Can Fillvisa OS replace case tracking and billing?
No complete replacement is claimed. Manage case records, deadlines, assignments, invoices, payments, and reporting through separate tools or processes.
Can I import my INSZoom records into Fillvisa OS?
No direct import or automatic sync is promised. Confirm export options, preserve your records, and test supported transfers with sample data. Form answers do not recreate case histories, employer relationships, or financial records.
Can I self-host Fillvisa OS?
Yes. Fillvisa OS is a static frontend that can run on your own web server. Follow the repository instructions, test your deployment, 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.
What license does Fillvisa OS use?
Fillvisa OS uses AGPL-3.0. Read the repository license before adapting, distributing, or operating a modified version for others.
Is this a Fillvisa Plus comparison?
No. This page covers Fillvisa OS, the free, self-hostable open-source edition. Paid hosted offerings 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 Fillvisa OS with Mitratech INSZoom.
- Fillvisa OS repository and AGPL-3.0 license — scope and deployment.
- INSZoom product overview
- INSZoom features and benefits
- Global Forms Framework documentation
- Global capability highlights (PDF)
Confirm current pricing, contractual scope, and form availability with the vendor. We have not performed a controlled usability study or tested direct migration. This page does not assume feature parity, equivalent country coverage, or guaranteed total-cost savings.
INSZoom is a trademark of its respective owner. Fillvisa is not affiliated with or endorsed by INSZoom or Mitratech.
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.