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FlowCrypt: Encrypt Gmail with PGP

Chrome extension by flowcrypt-release · Productivity · Communication

  • Featured
  • Established publisher
  • Trader

A Chrome extension in Productivity · Communication with 70 000 users, an established extension.

Specific sites only: 8 match patterns.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
70 000
Rating
4.7 (360 ratings)
Users, last 17 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
8.5.14
Updated in the store
2026-06-25
Published
2016-01-19
Manifest
V3
Browser access
6 permissions, 8 site patterns

How it has moved

Users
unchanged since 31.08
70k · 2 readings
  1. 2026-08-3170k
  2. 2026-09-1670k
Rating
unchanged since 31.08
reviewsrating 4.72 · 2 readings
  1. 2026-08-31reviews360rating4.72
  2. 2026-09-16reviews360rating4.72
Users
unchanged since 31.08
70k · 2 readings
  1. 2026-08-3170k
  2. 2026-09-1670k
Rating
unchanged since 31.08
reviewsrating 4.72 · 2 readings
  1. 2026-08-31reviews360rating4.72
  2. 2026-09-16reviews360rating4.72

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 8 match patterns.

  • https://flowcrypt.com/*
  • https://*.google.com/*
  • https://outlook.live.com/*
Show the remaining 5
  • https://outlook.office365.com/*
  • https://outlook.office.com/*
  • https://graph.microsoft.com/*
  • https://login.microsoftonline.com/*
  • https://www.googleapis.com/*
  • See the address and title of every tab you have open tabs
  • Sign you in with a Google account identity
  • Run its own code on the pages it can access scripting
Show the remaining 3
  • Schedule work to run later alarms
  • Store data in your browser storage
  • Store data in your browser without the usual size limit unlimitedStorage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

flowcrypt-release. Listed website: flowcrypt.com.

Like this one

Listings the catalog judges closest in what they say they do.

  1. GmailKrypt Describes nearly the same job, smaller audience 7 users (last published figure)
  2. CipherMail Describes nearly the same job, smaller audience 7 users
  3. Mailvelope - Secure your email with PGP Describes nearly the same job, with a large installed audience 100k users ★ 4.4
  4. Secure Send Mail Describes nearly the same job, smaller audience 254 users ★ 3.3
  5. GPGWebAuth Describes nearly the same job, smaller audience 16 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.