How it works
Your details, once
Press "Start free" for 3 applications with no account, or paste the key you already have. Then paste your details or choose text files: name, address, date of birth and the numbers you want used, kept under your key. The same profile serves web forms.
Choose the PDF
Every box on every page is read, named from the words printed next to it and outlined on a picture of the page. Reading the PDF is free.
AUTOFILL, check, download
Each box gets its answer. Beside the page, the same mirror as for web forms lists every answer with the form's own tick boxes and choices. Change anything, then download: the filled file is read back before you get it.
The forms
- IRS W-9 - Request for Taxpayer Identification Number and Certification
- IRS W-4 - Employee's Withholding Certificate
- USCIS I-9 - Employment Eligibility Verification (the employee's part)
- USCIS I-765 - Application for Employment Authorization
- Any other fillable PDF - supplier forms, registration forms, school and medical intake forms, company forms: each box read from the words next to it.
What it will not do
- Invent. A box your files do not answer stays empty and says why.
- Fill someone else's part. An employer's section, a preparer's or an interpreter's details, a part about a spouse: left for them.
- Sign. Signature boxes are never filled.
- Fill scanned or flat PDFs. A PDF without fillable boxes is not filled yet.
- Send the form. You download it and send it yourself.
Your data
Tax and identity forms hold your most private details. The PDF is kept on the FormFillPilot engine at most 30 minutes, then deleted, and "forget now" deletes it at once. We keep no file name and no value; only counts. For the boxes the form rules do not answer, only the box names, a picture of the page and your profile details go to the AI model; the filled PDF is sent nowhere. Answers you type yourself are remembered under your key for the next form, as on web forms - identity numbers are not. A form that came locked against changes comes back locked the same way.
Start with the free applications
3 free applications, no card. Choose a fillable PDF and see every box outlined before anything is written.