Fill any form in seconds, not hours
AI-powered document filling
Fill any form in
seconds, not hoursSave each client once — then every form fills itself. PDFs, Word docs, and real government forms, auto-filled from reusable profiles and sent for signature with a no-login link. Built for lawyers, freelancers, and HR.
More than a PDF filler — a form-filling workflow that remembers your clients.
Free forever plan · No credit card required
23 fields extracted
Reviewed & approved
client-intake.pdf
Full nameSarah Mitchell
Date of birth04 / 12 / 1988
Case numberIMM-2026-0417
Country of originCanada
Signature
All fields filled & signed Ready to send
0
Official US forms built in
0
Ready-made templates
0
Clients per batch fill
Ready-made templates — or bring your own form
Mutual NDAInvoiceOffer LetterService AgreementContractor AgreementOne-Way NDACV / RésuméCover LetterMutual NDAInvoiceOffer LetterService AgreementContractor AgreementOne-Way NDACV / RésuméCover Letter
16 official forms — included on every plan
Real U.S. government forms, filled in seconds
Add an official IRS, USCIS, or SSA form and Filly auto-fills it from your saved client profiles — no retyping A-numbers, SSNs, or addresses onto page after page.
IRS
W-9W-4W-8BEN")SS-42848W-7")88214506-T
USCIS
I-9AR-11G-28G-1145I-765I-864I-131
SSA
Included on every plan — free plan, no card required.
See Filly in action
From upload to a filled, signable document in under a minute.
Everything included
Stop retyping the same details
From upload to signature, Filly handles the busywork.
AI field extraction
Upload a PDF or DOCX and Claude identifies every field, its type, and what data it needs — even from scanned documents via OCR.
Create with AI
Describe any document in plain English and Filly generates a ready-to-fill template — fields, layout, and client-profile autofill built in. New on Pro.
Reusable client profiles
Save each client once. Their details auto-fill across every form, with a completeness score so you always know what's missing.
Encrypted at rest, isolated per account, never used to train AI.
Smart autofill
Pick a client and watch matching fields fill themselves — color-coded by confidence so you only review what matters.
It learns your corrections
Remap a field or nudge a value into place once, and Filly saves it to that form. The next fill of it — and every one after — is exact and instant, with nothing left to guess.
Batch fill
Generate the same form for up to 20 clients at once and download them all as a single ZIP.
Share & e-sign
Send a no-login link where clients review, edit, and sign on any device. Get notified the moment they do.
Pixel-perfect export
Export filled PDFs that overlay your data onto the original document, ready to send or file.
Official form library
16 ready-to-fill US government forms — IRS (W-9, W-7, 8821…), USCIS (I-9, I-765, I-864…) and SSA — pre-mapped to your client profiles, no upload needed.
AI fill assistant
Ask Filly to complete a form for you — it reads each question and answers from what it already knows about your client.
Time savings
See how much time you get back
Drag the slider to match how many forms you fill in a typical week.
Forms filled per week20
1150
Filling by hand3.3 hrs/week
With Filly AI15 min/week
13.4 hrssaved / month
Based on 10 min/form manually vs 45s/form with Filly AI.
How it works
Built for documents you can't afford to get wrong
An immigration lawyer's client intake form is a good example — nothing goes out until a human signs off on every field.
1
Source document in
Upload the client's blank form as-is — a scanned government PDF, a contract, an intake packet. No re-typing, no reformatting.
2
AI drafts every field
Claude reads the document, extracts each field, and fills it from the client's saved profile — color-coded by how confident it is.
3
You approve, then send
Every filled value sits side-by-side with the source so you can review or correct it. Nothing is exported, shared, or signed until you approve it.
Pricing
Simple, transparent pricing
Start free. Upgrade when you scale.
Free
$0/mo
- 3 forms
- 5 clients
- 10 fills / month
- AI field extraction
- Official IRS, USCIS & SSA forms
- Ready-made templates Start free
- 20 forms
- Unlimited clients
- 100 fills / month
- Official IRS, USCIS & SSA forms
- Ready-made templates
- Batch fill up to 5
- Share & e-sign Choose Solo
- Unlimited forms
- Unlimited clients
- Unlimited fills
- Official IRS, USCIS & SSA forms
- Batch fill up to 20
- White-label share links
- Priority support
- AI-generated templates Choose Pro
- Everything in Pro
- Up to 5 team seats
- Custom domain for share links
- White-label share links
- AI-generated templates
Solo
$19/mo
Most popular
Pro
$39/mo
Enterprise
$79/mo
Testimonials
Loved by professionals
See what lawyers, freelancers, and HR teams are saying.
“I used to spend 20 minutes filling out each client's visa application by hand. Filly AI does it in seconds. The autofill accuracy is impressive — it even handles unusual field labels correctly.”
S
Sarah M.
Immigration Lawyer
“Sending NDAs and contracts used to be a back-and-forth nightmare. Now I upload the template once, and every new client gets a perfectly filled copy with a signing link. Game changer.”
J
James K.
Freelance Designer
“We onboard up to 15 new hires a month. Batch fill alone saves our team hours every week. The ZIP download means everything is ready to file without any extra steps.”
P
Priya R.
HR Manager
“The client profile completeness score is something I didn't know I needed. It instantly tells me what information is still missing before I try to fill anything. Really thoughtful feature.”
T
Tom B.
Accountant
“Our firm handles a lot of repetitive court forms. Filly AI extracted every field correctly on the first upload, even from scanned PDFs. The e-signature flow is clean and professional.”
L
Leila N.
Paralegal
“I love that my clients don't need to create an account to sign. They just click the link, review the document, and sign. I get an email the moment it's done.”
C
Carlos D.
Freelance Consultant
Launched on
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FAQ
Frequently asked questions
Everything you need to know before you start.
What types of documents does Filly AI support?
Filly AI supports PDF and DOCX (Word) files. This includes standard forms, contracts, legal documents, HR paperwork, and invoices. Scanned PDFs are also supported via built-in OCR — text is extracted automatically before analysis.
How does the AI field extraction work?
When you upload a document, Filly AI sends it to Claude (Anthropic's AI) which reads the content and identifies every fillable field — its label, type (text, date, currency, signature, etc.), and what client data it needs. This happens in seconds and you can review or edit the field list before filling.
How accurate is it on scanned or non-fillable forms?
It depends on the form, so here's the honest answer. Official forms that carry a real field layer — IRS W-9 and W-4, USCIS I-9, and most government PDFs — are filled deterministically: Filly reads the actual field objects out of the document, so placement isn't a guess. Flat or scanned forms have no field layer at all, so Filly runs OCR and then an AI-plus-geometry pass to locate the blanks and checkbox squares. On a clean scan that works well; on a heavily degraded photocopy it degrades, and we won't pretend otherwise. What Filly is built to do is fail loudly rather than silently: the dangerous outcome isn't a missed field, it's a confidently wrong one, so anything it can't place with confidence is flagged as an unplaced value for you to position — never quietly guessed into the neighbouring box. Every value is colour-coded by confidence and nothing is exported until you approve it. And corrections persist: fix a field or its placement once and every future fill of that form is exact and instant.
Where does my client data live, and how is it protected?
Your data is stored in the EU — Filly is operated by Cyrus Group Kft. (Hungary) — and encrypted in transit and at rest. Every client profile, form, and fill is scoped to your account with database row-level security, so no other user can reach it. Uploaded documents sit in a private bucket and are only ever served over short-lived signed links. Documents are processed by Anthropic's API, which does not train on your data, and we never sell or share it. Stored files are auto-deleted after 12 months of inactivity, and you can erase your account and every document instantly from Settings.
Do my clients need to create an account to sign?
No. When you share a document for signing, your client receives a private link. They can review the filled document, make suggested edits, draw their signature, and submit — all without creating an account or logging in.
What is batch fill and who is it for?
Batch fill lets you generate the same form for multiple clients at once. Select a form, pick up to 20 clients, and Filly AI fills and exports a separate PDF for each. All files are packaged into a single ZIP download. It's ideal for HR teams sending onboarding packets or lawyers preparing the same contract for multiple clients.
Can I use my own document templates?
Yes — upload any PDF or DOCX and Filly AI will extract its fields. The Pro plan and above also unlocks 25 built-in templates (NDAs, contracts, offer letters, invoices, and more) that are pre-mapped to client profile fields for instant autofill with no setup.
What happens if I cancel my subscription?
You can cancel anytime from Settings → Billing. Your plan stays active until the end of the current billing period. After that, your account reverts to the Free plan — you keep access to your data but are limited to the free tier's usage caps. See our Refund Policy for the 14-day goodwill refund on first payments.
Does Filly AI provide legal advice?
No. Filly AI is a document automation tool, not a law firm. The built-in templates and AI output are provided for convenience only and do not constitute legal advice. Always have a qualified attorney review documents before relying on or executing them.
Security
Your data stays yours
Built for sensitive documents — with controls you can verify, not just trust.
Encrypted & isolated
Encrypted in transit and at rest, scoped to your account with database row-level security.
Delete anytime
Wipe your account and every document instantly from Settings — your GDPR right to erasure.
Auto-deleted
Stored documents are automatically removed after 12 months of inactivity.
Never used to train AI
Documents are processed by Anthropic's API, which doesn't train on your data. Never sold.
Operated by Cyrus Group Kft. (Hungary, EU). Read our security & data-handling page.
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Join professionals who reclaim hours every week with Filly AI.
Free forever plan · No credit card · GDPR-compliant, EU-operated · How we protect your data
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