Don't give your
real data to
every website.

Throwaway is a browser extension that fills forms with generated data, so you can protect your privacy, test auth flows, and iterate on payment forms without ever pausing your workflow.

Throwaway extension popup
Browser Extension·No Tab Switching·Privacy First·QA Testing·Chrome & Firefox·Open Source·
Browser Extension·No Tab Switching·Privacy First·QA Testing·Chrome & Firefox·Open Source·
The Problem

Every form asks for
your real data.

You're testing a signup flow. You need to fill a form. Your instinct is to use your real email, your real name, your real card number. But that's exactly the problem: every website you test still gets a piece of your identity.

And if you're a QA engineer? You're manually filling the same fields over and over, switching between tabs, copy-pasting OTP codes from a separate email client. It breaks flow and it's slow.

The Solution

A right-click.
That's it.

Throwaway lives in your browser toolbar. It generates realistic identities — names, addresses, emails, credit cards — and fills any form on any page with a single right-click.

No separate tab. No app to switch to. You're still on the page you're testing, and the data appears exactly where it needs to be.

Features

Built for two things:
privacy and speed

Whether you're protecting your data or testing a payment form, Throwaway has you covered.

One-Click Autofill

Right-click any page, select "Fill with Throwaway", and every form field gets populated instantly. Fuzzy matching finds the right fields even with unusual labels.

Context MenuFuzzy MatchAny Website

Stay Private

Never hand your real email, name, or address to a site you've never heard of. Disposable email addresses keep your inbox clean and your identity yours.

Disposable EmailNo TrackingLocal Storage

QA Testing Speed

Test signup forms, auth flows, and payment validation in seconds. Generate unique identities for each test iteration without manual data entry.

Auth FlowsPayment FormsRapid Iteration

Auto OTP Extraction

The extension reads incoming verification emails and auto-extracts OTP codes. No more switching between tabs to copy-paste codes.

Auto-refreshCode DetectionIn-app Inbox

Payment Form Testing

Generate Luhn-valid card numbers or use known test cards from Stripe, PayPal, and Amazon. Test declined, expired, and secure card flows effortlessly.

Luhn-validStripe/PayPalCard Variants

Extension-Native

No separate tab to manage. No app to switch between. Throwaway lives in your toolbar. Right-click to autofill, close the popup when done.

Zero FrictionIn-ContextChrome & Firefox
How it Works

Three steps.
Zero friction.

1

Open the Popup

Click the extension icon. A new identity is generated instantly — name, email, address, phone, card number, and financial data. All realistic, none of it yours.

2

Right-Click Autofill

Navigate to any form. Right-click the page, select "Fill with Throwaway". The extension matches fields using smart fuzzy search and populates them.

3

Done. Stay Private.

The form is filled with fake data. Your real identity stays yours. For QA, generate a new identity and iterate. For privacy, move on to the next site.

Screenshots

Built into your
browser workflow

No separate app. No tab switching. Just the extension, right in your toolbar.

Identity generation

Generate complete identities in one click

Disposable email inbox

Disposable inbox with OTP extraction

Context menu autofill

Right-click to autofill any form

Configuration options

Configure locales, card modes, and autofill sensitivity

FAQ

Got questions?

Your real data stays
yours.

Add Throwaway to your browser. Right-click to autofill. Stay private, test faster, keep your workflow intact.

Free forever · No account required · Open source