FillOnce
Built for renters & buyers
Your income, references, SSN.
Once. For the next application.
Rental applications. Lease renewals. Mortgage forms. The same 40 fields, asked endlessly. FillOnce stores them once and fills the next application in seconds, privately, no auto-submit.
AES-256 encryption · Sensitive-field confirmation · Co-applicant profiles
Why FillOnce
Built for housing paperwork
Income, employer, references, last 3 addresses, SSN, bank, pre-filled across every rental and mortgage form.
Co-applicants & guarantors
Add roommates, partners, and co-signers as separate profiles. Pick the right person on each form.
SSN safety built in
Sensitive fields are encrypted and require explicit confirmation before any fill. Never sent to an AI.
The paperwork between you and the keys
Rental applications
Rental portals with standards-based forms (think Apartments.com-style applications) and indie landlord PDFs — fill the same 40 fields once. Specific sites vary; you review before submitting.
Leases & addenda
Pet addenda, parking, utilities, move-in checklist — auto-fill and sign them yourself.
Mortgage forms
URLA (Form 1003), employment-verification letters, asset statements.
Renters & home insurance
Applications, claim forms, riders for jewelry/electronics, pre-filled from your vault.
How it works
Save details from a form you’ve filled
Upload a filled PDF, Word, or Excel form (or type a few details). FillOnce saves them under People, encrypted so we can't read them.
Open the next blank form
A standards-based web form in Chrome, or a fillable PDF, Word, or Excel sheet under Forms. FillOnce matches fields to your saved details.
Fill, review, download
FillOnce fills every matched field from your vault. You review and submit yourself. FillOnce never submits for you.
Built for real paperwork
Camp & school packets
Save last year’s form under People, fill this year’s blank packet.
Job applications
Save details from your résumé, then fill PDF or Word applications.
Rental & medical
Reuse income, insurance, and contacts without retyping every portal.
AES-256 encryption · Per-account isolation · Never auto-submits · Security · Compare
The autofill that doesn't spy on you
Browser autofill ships your data to a third party. Password managers only do logins and cards. FillOnce fills standards-based forms, fillable PDFs, Word documents, and Excel intake sheets from a vault you control — stored encrypted with your key, so we can't read them — and matching runs without handing your data to an outside AI service (see how we protect data).
Simple, honest pricing
Web-form autofill is available via the Chrome extension (beta — sideload from Settings; Chrome Web Store listing pending). Upgrade for unlimited documents and exports, supported file conversions, e-signature, and household profiles. Cancel anytime from your billing page.
Free
Try it free.
- ✓Web-form autofill via Chrome extension (beta — sideload)
- ✓1 person profile
- ✓5 stored documents
- ✓3 document exports / month
- ✓Encrypted, never sent to any AI
Pro
Most popularFor anyone who fills forms.
or $90 CAD/yr (2 months free)
- ✓Everything in Free
- ✓Unlimited documents & exports
- ✓Supported file conversions (e.g. XLSX ↔ CSV, flat PDF)
- ✓E-signature on documents
- ✓Priority support
Family
One vault for the whole household.
or $149 CAD/yr (2 months free)
- ✓Everything in Pro
- ✓Up to 6 household members (kids, pets, contacts)
- ✓A separate profile for each member
- ✓Pick who a form is about and FillOnce uses their data
- ✓Camp / school / medical form ready
Frequently asked questions
What kind of rental application forms does it support?
Standards-based rental-application web forms (with the Chrome extension) and PDF or Word applications and leases (in the app). Many rental portals and landlords use these patterns; we don't guarantee a specific portal without testing it first.
Can I fill the same data into 20 applications fast?
That's the point. Store your income, employer, references, SSN, and rental history once. Each new application fills in seconds. No more 'wait, what was my last landlord's number again?'
What about co-signers and joint applicants?
Add them as separate profiles under People (Family plan, up to 6 people). When a form needs co-applicant info, pick the right person before you fill.
Are my SSN and bank details safe?
Sensitive fields (SSN, bank, salary) are stored with AES-256 encryption and only filled after explicit confirmation. We never send your data to a third-party AI service.
Does it handle mortgage applications?
It handles standard mortgage paperwork patterns — fillable PDFs like the URLA (Form 1003) and standards-based web forms. As with any portal, we don't guarantee a specific site without testing; review before you submit.
Other life paperwork
FillOnce works for anyone with forms. Pick the version that sounds most like you. The product underneath is the same.
Families & parents
Camp, school, sports, medical. For every kid, without re-typing.
Job seekers
Standards-based application forms and résumé PDFs. Reuse what you already typed—you review before you submit.
Patients & caregivers
Intake forms, insurance, specialist referrals. For you and your family.
Small businesses
Onboarding, vendor, tax, and HR paperwork across your whole team.
Students & applicants
College, FAFSA, scholarships, housing. Built from forms you already filled.