Free Chrome extension · v1.1 live

Hide what you share
by accident.

Auto Blur finds card numbers.passwords. on any webpage and covers them up before anyone else can see. All on your computer. Nothing uploaded anywhere.

Free foreverNo accountWorks offline
dashboard.acme.com/users/447
User record · 447
Alice Chen
Account holder · Joined March 2023
Live

EMAIL
API KEY
CARD
AWS

Click any row to peek · auto re-hides after 3s4 / 4 hidden
Caught in
47ms
Works on ChromeEdgeBraveArcManifest V3No telemetryNo trackingNo accountWorks on ChromeEdgeBraveArcManifest V3No telemetryNo trackingNo accountWorks on ChromeEdgeBraveArcManifest V3No telemetryNo trackingNo account
9
Kinds it catches
0
Bytes uploaded
47ms
Time to hide
100%
On your device
Live demo

See it work.

Flip the switch. Sensitive parts disappear live — no reload, no waiting. Tap any hidden value to peek for three seconds.

dashboard.acme.com/users/447
User record · 447

Alice Chen

Account holder · Joined March 2023


From
Key
Card
AWS
Token
Password

6 / 6 values hiddenSafe to share

Click hidden values to peek — they re-hide themselves after 3 seconds.

What it hides

Nine kinds of trouble.

Auto Blur knows what secrets look like. It spots them on the page and covers them before you notice them yourself.

Email address
01
alice@company.com
Shown aboveHidden live
Phone number
02
+1 (415) 555 — 0147
Shown aboveHidden live
API key
03
sk_live_51H7A2K…
Shown aboveHidden live
JWT token
04
eyJhbGciOiJIUzI1…
Shown aboveHidden live
AWS credential
05
AKIAIOSFODNN7…
Shown aboveHidden live
Credit card
06
4539 1488 0343 6467
Shown aboveHidden live
Private key
07
-----BEGIN PRIVATE KEY---
Shown aboveHidden live
GitHub token
08
ghp_16C7e42F292c…
Shown aboveHidden live
Password
09
password: s3cr3t!…
Shown aboveHidden live
Pro · Unlimited
Add your own patterns.

Work at a place with custom employee IDs or internal tokens? Paste a regex and Auto Blur will hide those too.

Get the extension
Features

Small extension,
real peace of mind.

Six things it does well. Nothing extra. Every feature exists because real people have lost real minutes fumbling with screenshare when a credential flashed on screen.

Works on every site.

No setup per page. Install once and sensitive text is hidden everywhere — even when sites load new content after the page opens.

One-key panic.

Someone walks up mid call? Press Alt + Shift + B and the whole page goes dark. Press again to bring it back.

Click to peek.

Need to double-check a value? Click any covered item to see it for three seconds, then it covers itself again.

Remembers your choices.

Something covered that shouldn’t be? Add it to your always-show list. The value itself never leaves your device — only a fingerprint that cannot be reversed.

Per-site control.

On a site where you need the values visible? Pause Auto Blur for 15 minutes or turn it off on that domain entirely. Everywhere else keeps running.

Live counts.

Open the popup to see exactly how many values are hidden on the page right now, broken down by type.

How it works

Three steps.
One minute.

1
~30s

Install it.

One click from the Chrome Web Store. No sign up, no email, no setup.

2
always on

Browse like normal.

Auto Blur runs quietly in the background. You won’t notice it’s there.

3
< 100ms

Sensitive stuff hides itself.

Keys, passwords, emails, card numbers — covered in real time. Click any one to peek anytime.

Need to hide everything, right now?

Press the panic shortcut and the entire page goes dark.

Alt+Shift+B
Privacy by design

Your data
stays yours.

Auto Blur was built by people who do not want their own data collected, tracked, or sold. That is not a slogan. It is a design choice we made before we wrote the first line of code.

100% on your computer
  1. 01
    No account, no login.

    Install and use. Nothing to sign up for.

  2. 02
    No servers of ours.

    The extension has no backend. It literally cannot send your data anywhere — there is nowhere for it to go.

  3. 03
    No tracking.

    No analytics, no pings, no metrics. Not even how many times you use it.

  4. 04
    Your list stays unreadable.

    The always-show list is stored on your computer only, and never as plain text. Even we could not recover what you added.

  5. 05
    Browser-enforced.

    Chrome only lets Auto Blur do what its manifest asks for — and the manifest asks for three things: remember your settings, read the page you are on, and react when you switch tabs. That is it.

Reviews

What people
actually say.

I pair program over Zoom six hours a day. Before Auto Blur I would stop sharing every five minutes to check a header. Now I forget it is there — which is the whole point.
R
Ravi S.
Backend engineer
Pushed a live Stripe key to a client demo last year. Took an afternoon to rotate everything. Installed Auto Blur that night. The panic shortcut pays for itself the first time you need it.
M
Maya L.
Full-stack developer
Open plan office. The panic shortcut is muscle memory now — I hit it every time someone rolls their chair over. Zero explaining. Zero awkward moments.
J
James K.
DevOps engineer
Pricing

Free is enough.
Pro is thoughtful.

Fourteen-day, no-questions-asked refund on every paid plan. Free stays free forever.

Free
$0
per year
  • 9 kinds of data hidden
  • Click to peek (3-second timer)
  • Always-show list
  • Adjust blur strength
  • Live count on the popup
  • Community support
Get started free
Pro
$45
≈ $3.75/mo
  • Everything in Free
  • One-key Panic shortcut
  • Add your own regex rules (unlimited)
  • Pause or disable Auto Blur per site
  • Priority email support
  • Early access to new patterns
Start Pro
Most popular
Team
Soon
Building this next · join the waitlist
  • Everything in Pro
  • Up to 5 team members
  • Shared always-show list
  • Admin-managed rules
  • Usage reports
  • Dedicated support channel
Join waitlist
Coming soon

All paid plans include a 14-day money-back guarantee.

Ready when you are

Stop leaking by
accident.

Install Auto Blur in one click. Free forever. Everything runs on your computer. Your next call is safer by the time you finish reading this.

Free foreverNo accountWorks on all Chromium browsers