No document uploads Enforced by: outbound-request allowlist.
The outbound allowlist test rejects document bytes and page images in every request.
Private by design
Fill any form. Nothing leaves your computer.
Fillauto reads the PDF, DOCX or scan you already have open, finds every blank, and fills it from your own saved profile. On your machine, in your browser, in seconds.
No uploads · No account for your first fill · Works offline · Cancel anytime
How it works
Three steps from blank form to filled copy
Step 1
Open the form in Fillauto
Choose a file, a document link, or the form in your current tab.
Step 2
Check the fields it found
Review the detected blanks and make any corrections before filling.
Step 3
Export the filled copy
Apply your local profile, choose editable or flattened output, and download.
Private by design
Seven claims backed by mechanisms
Encrypted local profile Enforced by: profile encryption round trip.
The encryption round-trip test verifies every saved value is encrypted at rest.
Narrow permissions Enforced by: manifest permissions.
A manifest test compares every permission with the reviewed permissions document.
Local token storage Enforced by: token storage and refresh.
Tests verify authentication tokens never enter synchronized storage.
Link-only content script Enforced by: content-script scope.
The content script scope test verifies that only document links are inspected.
Offline demo actions Enforced by: demo zero-network.
The demo network test records no external request after page load.
Reviewable changes Enforced by: site links and accessibility.
The link and accessibility checks keep this security record usable.
Verify it yourself
Watch the Network list stay empty
- Press F12
- Open the Network tab
- Fill a form
- The list stays empty
Network · All · Fetch/XHR
No requests recorded
Repeated work
A profile for the details you type every week
HR
Repeat employee forms without copying details line by line.
See the workflowLegal
Prepare repeat court and client forms while documents remain local.
See the workflowAccounting
Reuse company and contact details across tax and vendor forms.
See the workflowPublic service
Help residents complete forms without creating a cloud document store.
See the workflowPricing
Free for a few forms, Pro for repeated work
Free
$0
Forever after sign-in
- 3 documents each month
- Your first fill needs no account
- Local encrypted profile
Pro
$9.99 / month
Cancel anytime · 7-day money-back
- Unlimited documents
- Priority support
- Batch and custom fonts as they ship
| Feature | Free | Pro |
|---|---|---|
| Documents per month Usage is checked before work starts. | 3 | Unlimited |
| Deterministic filling Field matching follows visible, repeatable rules. | Included | Included |
| Batch Review multiple documents in one queue later this year. | Not included | Pro |
| Custom fonts Fonts are stored locally in your browser. | Not included | Pro, later this year |
| Assisted matching Optional assistance stays off unless you configure and confirm it. | Not included | Pro, optional, later this year |
| Priority support Pro questions enter the priority support queue. | Not included | Included |
FAQ
Six practical answers
What does Fillauto cost?
Your first document needs no account. After sign-in, Free includes three documents each month and Pro is $9.99 per month. Yearly billing is coming; today Pro is billed monthly and you can cancel any time.
Do you upload my documents?
No. The extension reads, recognizes, fills, and exports the document on your computer.
Where does my data live?
Your encrypted profile stays in the browser. The service stores only account, plan, trial, and usage records needed to provide the product.
Does it work with scans?
Fillauto can open scanned forms. Text recognition for scans is planned for Pro later this year.
Which browsers are supported?
Current Chromium browsers and Firefox are supported. The live demo runs in a modern desktop browser.
How large can a document be?
The extension accepts files up to 50 MiB, with separate page and render safeguards to keep the browser responsive.