Side panel · v0.10.7

Fill Any Form.In One Click.Powered by AI.

Stop wasting time typing the same data over and over. FillFast detects every input on any page, fills it with realistic data in under a second, and remembers what you typed for next time. Free forever.

⚡ Zero-setup — works the moment you install🔒 Profiles never leave your browser⌨️ Alt+Shift+F to fill anywhere
🔒 forms.acme.com/onboard
Full Name
Rohan Sharma
Email Address
rohan.sharma87@gmail.com
Phone Number
+91 98234 56781
City
Bangalore
PIN
560034
Plan
Free
Pro
Team
Submit application
<0s
Fill time
From click to populated form
0+
Field types
From text to ARIA dropdowns
0%
Local-first
Data never leaves your browser
₹0
Pricing
Free forever, no account needed
The Problem

Filling forms is stealing your time

The minutes add up. The frustration compounds. The work isn't the form — it's everything before and after.

🐌

Live demos feel slow

You're typing in front of a client. They're watching. Every second counts. You're on field 3 of 12.

😤

QA testing is repetitive hell

50 form submissions a day. Same fields. Same data. Same wasted minutes that add up to hours.

🔄

Onboarding the same flow again

New team member? New client? Same forms. Same explanation. Same wasted effort.

How It Works

Three clicks. Zero setup.

No onboarding form. No mapping screens. No tutorials. Install, open a form, click Fill.

1

Add to Chrome

One click from the Chrome Web Store. No login, no signup, no setup form — the side panel opens to an empty dashboard ready to use.

2

Open Any Form

A small “Fill this form” badge appears in the corner of any page that has inputs. The side panel shows AI ready · live progress.

3

Click Fill

One click — or Alt+Shift+F. The AI walks every tab, generates context-appropriate values, and saves a template per domain for next time.

Features

Built for the way real forms actually work

Six things we shipped to handle the messy reality of multi-tab, dynamic, JS-heavy forms — together, free.

🤖

Context-Aware AI

FillFast reads the page title, headings and submit button text to figure out if it's a login, registration, job application, loan form or bug report — then generates values that fit.

📋

Multi-Tab Forms

Forms split across tabs or steps? FillFast walks every section automatically and fills them all in one click.

💾

Per-Domain Templates

Every successful fill is saved as a template named after the site. Next visit, the same data is ready — edit anytime in Manage Templates.

Most Important
🔒

Your Data Never Leaves

Templates stored locally in your browser. Only anonymous field labels go to AI — never your actual values.

🪄

Floating Fill Badge

A small badge appears in the bottom-right of any page with a form, so you never have to hunt for the extension icon. Click to fill, or dismiss for the session.

🇮🇳

Realistic Local Data

Indian names, valid PAN, Aadhaar, IFSC, GST and PIN codes — coherent across fields. Or skip the template entirely and let pure-faker fill a different persona every click.

Comparison

FillFast vs the rest

Honest, side-by-side. Checked every form-fill extension on the Chrome Store in May 2026.

FeatureFillFastFormGoatOthers
Free foreverLimited✗ Paid
Context-aware AIBarely
Multi-tab forms
Smart dropdown handlingBarely
No login required
Data stays in your browser
Per-domain auto-templates
Keyboard shortcut (Alt+Shift+F)
Use Cases

Built for people who hate wasting time

💼

Impress clients in live demos

Fill a 15-field CRM form in 1 second while your client watches. Look like a wizard. Close the deal.

Save 8+ minutes per demo
FAQ

Questions, answered

If yours isn't here, ping us at hello@fillfast.app — we'll add it.

No. Your templates live in your browser (chrome.storage.local) and never leave the device. The only thing FillFast's server sees is anonymous field labels ("Email", "PAN Number") — not your values — and only when you have AI matching turned on.
It's free. There's no account to create, no upsell, no premium tier hidden behind a paywall. The AI runs on a free model via OpenRouter — if the limit is hit, the local realistic-data generator takes over and the fill still works.
FillFast first does a fast local match using your template keys, then asks the AI (with the page context) to map any field it didn't recognise — including ARIA-built dropdowns, React radio groups, and rich-text editors. If even that fails, the faker generates a sensible value so the field is never left blank.
Yes. FillFast detects role=tablist or any tab-like UI, walks every section automatically, fills each one, and finishes on the last tab so the submit button is right there.
Chrome's autofill only handles a fixed set of profile fields (name, address, card). FillFast detects 50+ field types — PAN, Aadhaar, IFSC, salary, dropdowns, file uploads, rich-text bios — and uses AI to map fields no autofill spec has ever seen.
Yes — that's exactly the "Use my saved info" toggle. Turn it OFF and every Fill click generates a completely new realistic persona (different name, email, PAN, address), perfect for testing form validation with varied data.
It still works. The faker generates realistic data for every field on the page — you don't need to set anything up first.
Yes. The local faker is Indian-context biased (PAN, Aadhaar, +91 phones, Indian cities). For US/UK/global forms, the AI's form-classifier reads the page context and adjusts: SSN instead of PAN, ZIP instead of PIN, $/€ salary, etc.

Start filling smarter.
Right now.

Free forever. No account. No credit card. Just install and go.

Available on the Chrome Web Store