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 PRIMA FACIE
An open-source Prima Facie 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 A PRIMA FACIE 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 a Prima Facie workflow. It gives you browser-based tools and public source code. It does not replace Prima Facie’s full practice management platform.
PrimaFacie is now branded Prima.Law. Its platform combines immigration forms with case management, client intake, and package assembly. Fillvisa OS can be useful when you want a standalone form tool and already handle those responsibilities elsewhere. Fillvisa OS documentation · Prima.Law 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 Prima Facie is harder to use.
CORE LICENSE + IMMIGRATION ADD-ON
Fillvisa OS vs. Prima.Law pricing
Fillvisa OS has no software license fee. Prima.Law, previously PrimaFacie, prices its Core license and US Immigration add-on separately. The combined row below is our sum of those two published amounts.
| Product / component | Monthly pricing | Annual-plan monthly rate | Scope |
|---|---|---|---|
| Fillvisa OS | $0 software fee | $0 software fee | Supported open-source form tools |
| Prima.Law Core | $54 | $49 | Case management foundation |
| US Immigration add-on | +$25 | +$20 | Immigration tools, interviews, and assembly |
| Core + US Immigration | $79 | $69 | Calculated combined rate; not an additional charge |
Source: Prima.Law pricing. Annual rates require the annual plan. Confirm current billing terms and any discounts or service charges.
Free software has a clear boundary.
Fillvisa OS’s public core has no subscription or per-user license fee. Hosting, maintenance, and systems for other practice responsibilities remain separate.
Include optional services in your budget.
Prima.Law lists AI Credits separately at the firm level and quotes Enterprise API access separately. Check what your selected package includes before comparing total costs.
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 →
LOOK AT THE COMPLETE PREPARATION PROCESS
Forms, intake, and filing packages.
Prima.Law connects client information, casework, and assembled packages. Fillvisa OS is a focused option for supported forms when you already have a process for the surrounding work.
| Need | Fillvisa OS | Prima.Law / PrimaFacie |
|---|---|---|
| Core purpose | Supported immigration form preparation. | Case management with optional immigration tools. |
| Immigration forms | Supported USCIS PDF workflows and DS-160 tools; verify your release. | Immigration forms populated from client information; confirm your required forms. |
| Client intake | Use the input workflow available for your supported form. | Smart Interviews generate adaptive questions from case forms, followed by review and import. |
| Package assembly | Manage supporting documents and package organization separately. | Combines forms and exhibits into an indexed, paginated PDF. |
| Client portal | No hosted client accounts or shared cloud workspace in the core. | Client portal for uploads, interviews, forms, and payments. |
| Casework & deadlines | Manage case records, assignments, and deadlines separately. | Case workflows, deadlines, and reminders. |
| Billing & communication | Not included in the open-source form core. | Core pricing lists trust accounting, payment capabilities, and texting; confirm limits. |
| AI review | No equivalent AI package-review service is promised. | AI Case Review; AI Credits are separately priced. |
| Source & hosting | Public AGPL-3.0 code; self-hostable static frontend. | Hosted service; no self-hostable open-source edition identified in reviewed sources. |
| Progress & migration | Local browser progress; no automatic sync or direct Prima.Law import. | Hosted case information; confirm export options and migration scope. |
Sources: Fillvisa OS, Smart Interviews, Package Assembly, Client Portal, and plan inclusions.
FILLVISA OS MAY FIT WHEN
You want free tools for supported forms.
- Your required forms are supported in your chosen release.
- You value source access and optional self-hosting.
- You can preserve local browser work.
- Your existing processes cover client intake and package assembly.
- You can maintain your deployment or arrange help.
PRIMA.LAW MAY FIT WHEN
Your team needs a connected preparation process.
Adaptive client interviews, shared case records, and indexed package assembly may be important to your daily work. Evaluate those capabilities before replacing a platform with a form tool.
Fillvisa OS can also serve a separate supported task while you retain your existing systems. Plan how information moves between them; no automatic integration is claimed.
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 Prima Facie’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. Prima Facie: frequently asked questions
Is Fillvisa OS an open-source Prima Facie alternative?
Yes, for supported immigration form preparation. Fillvisa OS is free, self-hostable software under AGPL-3.0. It does not replace every case management, intake, package assembly, or billing capability in Prima.Law.
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.
Is PrimaFacie now called Prima.Law?
Yes. Clio’s official integration directory identifies Prima.Law as previously PrimaFacie. This page uses the familiar Prima Facie name for the comparison and current Prima.Law documentation for features and prices.
How is Prima.Law immigration pricing structured?
The published Core license and US Immigration add-on are separate components. The pricing table above shows each component and their calculated combined rate. Confirm current billing terms and optional services directly with Prima.Law.
What are Prima.Law Smart Interviews?
They are adaptive questionnaires generated from the forms in a case. Clients complete the interview, and staff review the answers before importing them into contacts and forms. Fillvisa OS does not promise an equivalent hosted client-intake system.
Does Fillvisa OS replace Prima.Law Package Assembly?
No equivalent package-assembly workflow is claimed. Prima.Law describes combining forms and exhibits into an indexed PDF with page numbers. With Fillvisa OS, plan separately how you will organize supporting documents and review the complete filing.
Does Fillvisa OS include a client portal or AI Case Review?
The open-source core does not include hosted client accounts or an equivalent AI review service. Evaluate those needs separately from the supported form-preparation tools.
Can I import PrimaFacie or Prima.Law records into Fillvisa OS?
No direct import or automatic sync is promised. Preserve your records and test supported transfers with sample data. Form answers do not recreate case histories, document 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. PrimaFacie is now branded Prima.Law; this comparison uses its current offering.
- Fillvisa OS repository and AGPL-3.0 license — scope and deployment.
- Prima.Law pricing
- Prima.Law product overview
- Smart Interviews
- Package Assembly
- Client Portal
- Clio integration directory: Prima.Law, previously PrimaFacie
Combined prices are calculated from the listed Core and US Immigration amounts. Confirm current terms, feature inclusions, and form coverage. We have not performed a controlled usability study or tested direct migration. No feature parity or guaranteed total-cost savings are assumed.
PrimaFacie and Prima.Law are trademarks of their respective owner. Fillvisa is not affiliated with or endorsed by Prima.Law.
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.