FillMatic

FillMatic autofills forms with dummy data in one click, saving developers time and making testing faster and easier.

Stop typing "asdf" into every test form If you're a developer or QA tester, you know the drill: fill out the same form fields over and over just to check if a button works. FillMatic kills that grind. Click once (or hit your shortcut) and every field on the page gets filled instantly with data that actually looks real. Names look like names, emails look like emails, phone numbers look like phone numbers. Smart enough to know what goes where FillMatic checks each field's autocomplete attribute, name, ID, placeholder, and label to figure out what kind of data it needs. It also fires the real browser events (focus, input, change, blur), so React, Vue, and Angular forms treat it exactly like real typing, not a script dumping values in. Want it to type like a human or just fill instantly? You choose the speed. Works on custom widgets too, not just plain inputs Date pickers, comboboxes, toggles built from divs instead of native inputs, FillMatic can drive those too. Record how to interact with a custom widget once and it replays automatically on every fill after that, no matter what framework built it. An AI assist when you want it Open the side panel and scan the page. FillMatic proposes a mapping for every field, refined on-device by Chrome's built-in AI when it's available. Nothing leaves your machine. Adjust the mapping, fill the form, and save it if you want that exact page to fill the same way every time without rescanning. Profiles for testing as different users Switch between Work, Personal, Staging, whatever you need. Each profile keeps its own email domain, password, and field overrides, so testing multi-account flows or different user types doesn't mean resetting your settings every five minutes. One-click Actions for specific sites Some sites need specific values, not just realistic ones. FillMatic ships with built-in Actions for Stripe Checkout, Lemon Squeezy, and Paddle, so test cards (4242 4242 4242 4242) drop in automatically. Need your own? Build custom Actions matched by URL, hostname, or regex. Field Rules for values you never want to change Promo code should always be SAVE20? Username should always be testuser? Field Rules let you lock a fixed value to any field by ID, name, label, or autocomplete, saved per profile so nothing leaks across environments. Set it up your way Pick a disposable email domain (Mailinator, YOPmail, or mailsac), reuse one password or generate fresh ones, exclude fields you don't want touched, auto-check boxes like terms or newsletter signup, and trigger it all with a keyboard shortcut: fill the whole page, just the current form, or just the field you're in. Built for real testing workflows, not spam. More's coming, and feedback actually shapes the roadmap, so if there's something you want, say so.