
SimpleCitizen
Docketwise
Clio
Bridge.us
Pterocos
ImmiCompliance
The easiest way to complete immigration forms, free and entirely in your browser.

PDFShift
DocRaptor
PDFCrowd
pdflayer
HTML PDF API
PDF my URL
HTML2PDF Rocket
PDF Generation API, powered by AWS Lambda. HTML to PDF | URL to PDF | Office Doc to PDF | Merge PDFs . Supports wkhtmltopdf, Headless Chrome, and LibreOffice. No rate limits and no file size limits.

Which is more popular?
Based on our record, Api2Pdf should be more popular than Filllvisa. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | fillvisa.com | api2pdf.com |
| Pricing | ||
| Platforms | — | |
| Company | 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


USCIS forms are painful. The official PDFs are XFA-based - broken in most browsers. Third-party tools charge money or require an account just to get started. Fillvisa is different: it runs entirely in your browser, saves your progress to localStorage, and generates a real fillable AcroForm PDF -...
Api2Pdf.com is an easy-to-use REST API that gets you converting HTML to PDF in minutes. You don't need to worry about installing a PDF rendering engine on your local developer environment and wrangle with it when you deploy your web app to production. Api2Pdf is a wrapper for WKHTMLTOPDF,...
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Api2Pdf yet.
Walkthroughs and reviews on video.
No Filllvisa videos yet. You could help us improve this page by suggesting one.
Generate PDFs from .NET with Api2Pdf.com
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Filllvisa and Api2Pdf.
Filllvisa's answer
Built by Junaid, a founder with a personal connection to the immigration experience. The core frustration was that existing free tools were either low-quality fillable PDFs, server-side tools that harvested user data, or paywalled SaaS products. Fillvisa was built to give immigrants the tool they actually deserve - professional-grade, private, and genuinely free.
Filllvisa's answer
Immigrants navigating the U.S. naturalization or adjustment-of-status process on their own - people filing forms like the N-400 without legal representation, often cost-sensitive, frequently non-native English speakers, and deeply privacy-conscious about where their personal information goes.
Filllvisa's answer
It's free with zero friction - no signup, no paywall, no upsell nag. Your data stays on your device. The output is a properly filled, submission-ready PDF, not a printable web form. For immigrants who can't afford an attorney and don't trust third-party servers with sensitive personal data, that combination is hard to beat.
Filllvisa's answer
Fillvisa is 100% client-side - no account, no server, no data ever leaves the browser. It runs entirely on localStorage, generates real AcroForm PDFs via pdf-lib, and embeds structured JSON metadata directly into the PDF so forms can be re-imported and resumed later.
No other free USCIS form tool offers that round-trip fidelity.
Filllvisa's answer
HTML, vanilla JavaScript, pdf-lib (PDF generation), localStorage (persistence), and a per-page -map.js validation config architecture. No frameworks, no backend, no database. Fully static and deployable as a CDN asset.
Filllvisa's answer
As a free consumer tool, Fillvisa doesn't have "customers" in the traditional sense. It has users - immigrants filing USCIS forms independently. There are no named enterprise accounts or notable client logos to list.
Share your experience with using Filllvisa and Api2Pdf. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I'm building Fillvisa (https://fillvisa.com/) I built a prototype and shared it travel/immigration subreddit. Note, my product is 100% free, no-login and (most importantly), solves a pain problem in a niche. There's a paid version... - Source: Hacker News / 10 days ago
Fillvisa – https://fillvisa.com USCIS immigration forms are still distributed as XFA PDFs - a deprecated Adobe format that modern browsers and PDF readers can't render or fill. Immigrants download them, get a blank white page, and give... - Source: Hacker News / 6 months ago
My colleague and I built api2pdf.com and launched in 2018. It was a massive amount of upfront work requiring sleepless nights and weekends for months on end because launching a SaaS involves way more than just the software component. Source: almost 4 years ago
It might be easiest to use something like api2pdf.com to convert the HTML to PDF using a simple REST API call instead of trying to wrangle wkhtmltopdf or headless chrome inside serverless functions on Netlify or Google Cloud. That can... Source: over 4 years ago
I built api2pdf.com - there was a massive upfront effort to build the product, infrastructure, marketing, everything you need to create a real business and a reliable, high quality service. Source: over 5 years ago
When comparing Filllvisa and Api2Pdf, you can also consider the following products.

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