Chrome Extension · v0.1.2

Safe Night Check

Let it wait for morning.

A Chrome extension that shows a gentle confirmation before an email goes out on Gmail during the night hours you set.

Available on the Chrome Web Store
mail.google.com
A Safe Night Check confirmation dialog over a late-night mail compose window: under an illustration of a sleeping moon, the heading “It’s 23:45 right now.” and three choices — Back to draft, Schedule send instead, Send anyway.

USE CASES

Morning would do

Finishing and sending is one continuous motion. Interrupting it exactly once is all this does.

Finishing an email late at night

Writing something at midnight and sending it unread tends to be a single gesture. During the hours you set, a confirmation appears, which leaves reading it again in the morning as an option.

Not wanting it to land while the other person is off

You may be awake, but the notification goes off on their phone at the same hour. The pause gives you a moment to think about how a midnight message arrives, and to decide whether it waits.

Wanting a beat before a sharply worded reply

A rebuttal or a chase reads at its harshest right after you write it. Reading it back at the confirmation lets you choose between sending it as is and rewording it. Send anyway is always there.

Features

Designed to stay out of your way.

During your night hours, that one send is paused for you to confirm. It never rewrites your words or sends anything on its own — just one gentle moment of pause before a late-night email goes out.

Night hours only

The confirmation appears only during the night hours you set. During the day it does nothing.

Never reads your email

The only inputs are the clock and your settings. It never reads the body of your email.

No external sending

Network APIs are excluded by construction, and a build-time machine scan verifies that nothing communicates.

Never decides for you

The final call is always yours. Choose "Send anyway" and your email goes out as is.

NIGHT HOURS & SETTINGS

Night hours & settings

You decide what counts as "night." Settings are stored on your device.

Night hours

Set any start and end time. Ranges that cross midnight, like 22:00–06:00, are supported.

Default: 22:00–06:00

Days of the week

Every day, weekdays only, or custom. Late night belongs to the previous evening (Saturday 1:00 counts as Friday night).

Customizable

Not tonight

A snooze for just this one night. The confirmation stays quiet until the night is over.

Optional

ON / OFF

Toggle any time from the toolbar popup, which also shows the current state at a glance.

Default: ON

Display language

Auto-selected by your browser language.

日本語 English
Auto

Compatibility

Works on Gmail (mail.google.com), Chrome 116 or later.

Chrome 116+

HOW IT WORKS

A gentle pause before a late-night send

A kind confirmation gate that works only during the night hours you set. During the day nothing happens and your email goes out as usual.

1

Catch the late-night send

It acts only the instant you try to send an email on Gmail during your night hours.

Gmail (mail.google.com) Only during your night hours Never reads the body

Daytime sends never show anything.

2

Ask gently

A confirmation modal appears with an illustration of a sleeping crescent moon. It never rushes or scolds you.

"The person you are writing to may be asleep right now. How about letting this email rest until morning, too?"

3

You decide

Three choices. For safety, "Back to drafts" is selected first.

Back to drafts Schedule send Send anyway

"Schedule send" guides you to Gmail’s own schedule-send feature.

GET STARTED

Install & use

Add it, open it from the toolbar, and reach settings in a click.

Adding Safe Night Check from the Chrome Web Store

1Install

Just press “Add to Chrome” on the Chrome Web Store.

Pinning the extension from Chrome’s extensions icon

2Pin to the toolbar

Open the extensions icon (the puzzle piece) at the top-right of Chrome and pin Safe Night Check so it’s always one click away.

The Safe Night Check settings (options) screen

3Open the settings

Right-click the icon → “Options,” or open the settings from the popup. Adjust night hours, days, and the snooze.

The confirmation modal shown before a late-night send

4See it in action

Try to send an email on Gmail during your night hours and the confirmation modal appears before it goes out.

Open it any time from the extensions icon (the puzzle piece) at the top-right of Chrome.

PRIVACY

Our privacy promise

Because it exists to offer a moment of pause, it never takes custody of your email itself.

The body of your email never leaves this extension.

The only inputs are the clock and your settings — no server sending, analytics, or telemetry whatsoever.

Where data lives

Only your settings are stored on your device (storage). Your email contents are never read or saved.

External traffic

No server, no analytics, no telemetry. Network APIs are excluded by construction and a build-time machine scan verifies that nothing communicates.

Permissions needed

Just settings storage (storage) and running on Gmail (mail.google.com) — minimal permissions only.

Read the Privacy Policy →How to verify (Transparency) →

Frequently asked questions

Does it read my email?

No. Whether to show the confirmation is decided from the clock and your settings alone. It never reads the body of your email.

Will it stop me from sending?

No. It only adds a single confirmation. Choose “Send anyway” and your email goes out as is.

Does it appear during the day?

No. It works only during the night hours you set (default 22:00–06:00).

Does it work outside Gmail?

It currently supports Gmail (mail.google.com) only.

MORE TOOLS

Sibling tools you can use now

Published tools that also act before you send.

Let it wait for morning.

Free and fully on-device. Add it to Chrome and start tonight.

View on Chrome Web Store

LEGAL

Before you start

Our privacy promises and usage rules are collected in the documents below.