How do their growth rates compare?

Autofilly has a month-over-month growth rate of —; WebFill has -12.5%.

How does pricing compare?

Autofilly: Free. Free. There is no paid tier; if you enable the OpenAI mode you pay OpenAI directly for API usage through your own key. WebFill: Freemium. Freemium. Free plan: 1K words/month, basic models, 20 Vision uses. Standard: $7.99/mo (100K words, 400 Vision uses). Premium: $19.99/mo (250K words, 1,000 Vision uses, enterprise-level data security). Annual billing saves 20%.

What are alternatives to Autofilly and WebFill?

Other tools in related categories include Monica, Fillout, Sider, forms.app, HARPA AI.

Autofilly vs WebFill — Traffic (0 vs 2.04K), Pricing & Verdict

Open AI Tools

Autofilly vs WebFill — Traffic (0 vs 2.04K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Autofilly	WebFill
Official Domain	chromewebstore.google.com	webfill.co
Pricing Model	Free	Freemium
Monthly Visits	0 (0)	2.04K (2,044)
MoM Traffic Delta	0 (—)	-293 (-12.5%)
Primary Market & Share	🌐 Global (—)	🌐 Global (—)
Direct Visits / mo	0	805
User Rating	4.2	4.1
Supported Platforms	Browser Extension	Website

Autofilly

Fill test forms with random or AI-written data in one click

One-click filling

Click the extension on any page and it populates the detected form inputs, with no per-field setup required.

Random data mode

Generates random values in JavaScript for instant, offline filler content — ideal for quick layout and submission checks.

Bring-your-own OpenAI key

Add your own API key to have OpenAI write realistic, human-readable values instead of random strings.

Developer-oriented workflow

Aimed at local development and testing, where you need throwaway data in forms rather than a stored personal profile.

Strengths & Pros

+Genuinely free with no subscription or paywall
+Two modes in one tool — instant random data or AI-written values
+The OpenAI mode uses your own key, so billing and quota stay under your control
+Developer declares no data collection, keeping local development self-contained