HOW FYLLYO WORKS

From client documents
to a completed PDF.

Five steps. Your documents stay on your computer.
You stay in control of every answer.

01 / CHOOSE A FORM

Start with the
form you need.

Pick a built-in template, like I-864 or 1040-X. Already have a fillable PDF? Add it once and reuse it for each client.

How to add your own form →
USCISI-864Affidavit of Support
IRS1040-XAmended Individual Return

02 / ADD CLIENT DOCUMENTS

Bring the files.
Skip the retyping.

Add PDFs, scans, photos, Word files, or typed notes for your client. Fyllyo reads the information across them without uploading the documents.

Client records.pdfPDF
Identity scan.jpgScan or photo
Employment letter.docxWord document
Client notesTyped text

03 / FILL WITH LOCAL AI

Let Fyllyo do
the data work.

AI extracts facts and maps them to the right fields. Code handles calculations and formatting—from annual income to dates in the format your form needs.

Download the local model once (about 5 GB). After setup, configured forms fill offline.

04 / REVIEW THE ANSWERS

Check the details.
See the source.

See the filled PDF beside its source information. Click a field to follow the mapping, confirm key facts, and correct answers in one place.

Uncertain answers are left blank and flagged for review. Always check the completed form before using it.

05 / SAVE YOUR PDF

Your form.
Ready for the next step.

Save your corrections straight into the PDF. Keep the completed file on your computer, ready for your usual submission process.

Fyllyo prepares forms. It doesn’t e-file them or provide legal or tax advice.

I-864 · Completed.pdf Saved on your computer

ADD YOUR OWN FORM

Set up once.
Reuse for every client.

Add a blank fillable PDF and describe how it should be filled. Fyllyo Cloud prepares the template; your computer handles client documents when you use it.

Set up once in the cloudOnly your blank form + instructions
Fill locally, every timeClient documents stay on your computer

No API key required. You can use your own if you prefer. Keep client details out of the blank form and instructions, and check the first few completed forms carefully.

See exactly what stays local →

Put your paperwork on autopilot.
Keep the final say.

Download for Mac

Apple silicon Mac · 16 GB memory recommended · About 8 GB free space