Stop Autofill

About

Stop Autofill — take control of browser autofill

Modern browsers are aggressive about autofill, password prompts, and form suggestions — and they often appear where you don’t want them.

Stop Autofill gives you precise, opt-in control over where browser autofill and password managers are allowed to appear — without breaking websites or collecting data.

You decide:
on which websites autofill is disabled
on which pages it applies
or even which specific form or element should be ignored

No global blocking. No tracking. No guesswork.

How it works:

Stop Autofill operates on an opt-in rule system:

This website — disable autofill across an entire site
This page — apply rules only to a specific page
Block element — target a single form, input group, or container

Rules are easy to create, review, export, and remove.

Common use cases
🧑‍💻 Developers & IT professionals

Stop password prompts on internal admin portals
Prevent autofill from interfering with test forms
Eliminate accidental credential injection during demos

🧾 Finance & enterprise tools

Disable autofill on accounting, ERP, or ticketing systems
Prevent browsers from offering unrelated saved data
Reduce mistakes caused by incorrect autofill suggestions

🛒 Online shopping & checkout flows

Block autofill on multi-step checkout pages
Avoid incorrect address or payment suggestions
Keep forms clean when entering data manually

🧪 QA, staging & testing environments

Prevent autofill from polluting test data
Keep test inputs predictable and controlled
Avoid cached values during repeated test runs

👤 Privacy-conscious users

Reduce browser-level data exposure
Stop password manager prompts where they aren’t needed
Maintain control without disabling autofill everywhere
Element picker (surgical control)
Need to block autofill on just one form?

Use Block Element:
Click “Block Element” from the popup or right-click menu
Select a form, container, or input area
Confirm the selection
Perfect for sites where only part of a page misbehaves.

Privacy-first by design:
Stop Autofill is built to run locally in your browser.
❌ No analytics
❌ No tracking
❌ No ads
❌ No external servers

What is stored on your browser:
Your rules (sites, pages, selectors)
Your preferences and counters

All data is stored locally using browser extension storage.
If browser sync is enabled, your settings may sync across devices via your browser account — Stop Autofill does not operate any servers.

Customizable defaults
Control how new rules behave:
Disable autofill by default
Disable password manager prompts
Disable the right-click context menu if desired

You’re always in control.

Backup & portability:
Export all rules to a JSON file
Import rules on another browser or machine
Clear all rules anytime from Settings

Why Stop Autofill?

✔ Precise control instead of global blocking
✔ Works per site, per page, or per element
✔ No data collection
✔ No subscriptions
✔ No permissions beyond what’s required

Open & transparent

Stop Autofill is open source and maintained transparently.
Security engineers and curious users are welcome to review the code and report issues.