Filly AI vs. Instafill.ai
Instafill.ai is an AI PDF filler known for handling long, complex, and scanned government-style forms — up to hundreds of fields per document.
Quick answer
Filly AI is the best Instafill.ai alternative when you fill forms for the same clients repeatedly. Instafill excels at one complex document at a time; Filly saves each client's details once and auto-fills every future form from that profile — plus batch fill and no-login e-signature.
Where Instafill.ai is strong
Instafill is genuinely strong on single complex documents: large multi-page PDFs, checkboxes, tables, and scanned forms.
Filly AI vs. Instafill.ai at a glance
| Feature | Filly AI | Instafill.ai |
|---|---|---|
| Free plan | Yes — 3 forms, 5 clients, 10 fills/mo, no card | Paid / credit-based |
| Reusable client profiles | Core feature — save a client once, reuse everywhere | Not the focus — document-at-a-time |
| Batch fill (many clients at once) | Yes — up to 20 per run, one ZIP | Limited |
| AI field extraction | Yes — reads any PDF/DOCX, incl. scanned (OCR) | Yes |
| No-login e-signature | Yes — share a link, sign in any browser | Varies |
| Starting paid price | $19/mo (Solo) | Paid / credit-based |
| Best for | Professionals refilling the same clients' details across many forms | One-off complex or scanned documents |
Why teams switch to Filly
Fill once, reuse forever
Instafill fills a document; Filly remembers the client. Save a client's details once and every future form auto-fills from that profile — no re-uploading the same data.
Batch fill for many clients
Generate the same form for up to 20 clients in one run, downloaded as a single ZIP — built for recurring, high-volume filling.
Built-in e-signature
Share a no-login link so clients review and sign in any browser, and the signed copy comes straight back to you.
Free to start
A real free plan (3 forms, 5 clients, 10 fills/month) with no credit card — try the full workflow before paying.
Try Filly free — no card
Fill your first forms today. 3 forms, 5 clients, 10 fills a month on the free plan.
Get startedFrequently asked questions
- What is the best Instafill.ai alternative?
- Filly AI is a strong Instafill.ai alternative for professionals who fill forms for the same clients repeatedly. It saves each client's details as a reusable profile and auto-fills every form from it, adds batch fill for up to 20 clients at once, and includes no-login e-signature — with a free plan to start.
- How is Filly AI different from Instafill?
- Instafill is built around filling one complex document at a time. Filly is built around the client: you save a person's details once, then every future form auto-fills from that profile. Filly also adds batch fill and built-in e-signature aimed at recurring, multi-client workflows.
- Is Filly AI cheaper than Instafill?
- Filly has a free plan (3 forms, 5 clients, 10 fills/month, no credit card) and paid plans from $19/month. Compare that against your expected monthly volume — for recurring multi-client filling, Filly's flat plans are predictable versus per-document credit models.
- Can Filly handle scanned PDFs like Instafill?
- Yes. Filly reads scanned documents with OCR, extracts the fillable fields with AI, and lets you review anything it's unsure about before exporting — so scanned government-style forms are supported.
Other comparisons
Comparison based on publicly available information as of 2026. Product names and trademarks belong to their respective owners; Filly AI is not affiliated with or endorsed by Instafill.ai. Details change — verify current features and pricing on each provider's site.