GGoogleno-reply@accounts.google.com · just nowInbox
Your verification code
Your Google verification code is 482 913. It expires in 5 minutes.
v0.2.0 · Field suggestions are here
Stop chasing verification codes in your inbox.
Simple OTP's browser extension catches fresh Gmail codes and offers them beside any OTP field — with a live countdown, one-click fill, and nothing ever leaving your device.
On a Mac? Get the menu-bar app →
- Free
- No account needed
- Chrome + Firefox
- No analytics
accounts.example
······
482 913expires in 04:37
Filled — code marked used
Local onlyFill with ⌃⇧ONever auto-submits
The extension reads the code on-device and offers it exactly where you type.
- Chrome
- Firefox
- Menu bar
- Terminal
- Gmail
- Keychain
Features
Everything codes need.
Nothing they don't.
One job, done end to end: detect the code, prove it's fresh, hand it over, clean up after.
Live countdowns you can believe
“Expires in 5 minutes” in the email becomes a real ticking timer. No statement? A conservative 10-minute default takes over.
Field suggestions
A suggestion appears beside any focused OTP field. You hit Fill — it never submits for you.
Ephemeral capture
AutoFill, clipboard auto-catch and Paste & Parse keep just the code in memory for ≤ 5 minutes. Never logged, never synced.
Multi-account sync
Each Gmail keeps its own resumable cursor, so refreshes read only what changed. First account free.
History search
Used and expired codes stay searchable for 1, 7 or 30 days — then they're gone. Filter fresh, used, expired.
Automation-friendly
simple-otp doctor · list · history · copy · use — script the whole lifecycle from your terminal.
$ simple-otp list
● Google······482 913··04:37
○ GitHub······394 102··03:12
Surfaces
One flow, three surfaces.
Fill without the round-trip
Standalone Gmail client for Chrome and Firefox. With the Mac app installed, the extension reads its shared local snapshot — Gmail is fetched once, both products read the same result. Fill only ever happens on your explicit action.
Chrome · FirefoxQuiet until it matters
Universal binary for Apple silicon and Intel. The menu-bar icon fills when a fresh code lands; the popover offers copy, mark-used, restore, per-account pause, and instant refresh. Settings live one click away.
macOS 15+Scriptable by default
doctor diagnoses setup, list shows fresh codes, copy grabs the latest (and marks it used), use/unuse manage state — all against the same on-device store. Your AI agents can use it too: with your approval, an agent you're working with can pull a fresh code straight from the terminal instead of sending you to dig through Gmail.
How it works
From inbox to field
in seconds.
- 1
Connect Gmail
Google's own browser flow, accounts you pick. Read-only by default; refresh tokens stay in your browser profile or Keychain.
- 2
We catch it
Incremental sync decodes new messages in memory, extracts the code, discards the body.
- 3
You use it
Hit Fill beside the field, or copy from the popup. Used codes step aside automatically.
Security
Local-first isn't a slogan. It's the architecture.
No Simple OTP cloud. No inbox database. No analytics pipeline. A stateless broker only exchanges OAuth tokens; messages and codes never pass through it.
- Read-only by defaultGmail scope is
gmail.readonlyunless you opt further. - Auto Archive is off by defaultEnabling it requests
gmail.modifyseparately, per account. - Surgical by designOnly the exact message that produced a code loses its
INBOXlabel — it stays in Gmail All Mail. - Denying the separate Auto Archive permission does not affect these read-only features.
Gmailyour choice→Keychaintokens→Engineon-device→Youcopy · fill
- Data protection
- Tokens in Keychain / browser profile. Codes in local storage.
- Retention and deletion
- 1, 7 or 30-day history. Ephemeral codes vanish in ≤ 5 min.
- Limited Use & AI
- No ads, no tracking, no model training. See Privacy for AI and machine learning + Limited Use.
Pricing
Start free. Upgrade when you have more inboxes.
Starter
$0forever
One Gmail account, full code inbox, countdowns, fill.
Get the Mac appPro
$30/ year
Multi-account sync on every browser profile you use.
Choose yearlyor go monthly ($3)Lifetime
$50once
Pay once. Multi-account sync forever, no renewals.
Choose lifetimeCheckout by Polar — key arrives with the receipt, activated in extension Settings → Pro license. Tokens, messages and codes never leave your device; verification sends only the key.
FAQ
Answers, up front.
Which browsers are supported?
Chrome and Firefox — the extension is a standalone Gmail client in both.
Do you store my emails?
No. Bodies are decoded in memory and discarded; only code, sender and expiry persist locally.
What marks a code used?
Copying or filling does, automatically. Manual used / unused controls are always available.
Does it submit forms?
Never. Every fill is your explicit action; submit stays yours.
How does auto-archive work?
Off by default. With separate per-account consent it removes only the INBOX label from the exact OTP message (kept in Gmail All Mail) and retries safely on failure.
Do I need the Mac app for the extension?
No — the extension works standalone. With the app installed, both share one local snapshot instead of fetching twice.
Stop hunting. Start pasting.
Free. Set up in two minutes.
Open installed app ↗ Chrome + Firefox · No account required · Mac menu-bar app included