FlowCrypt: Encrypt Gmail with PGP icon

FlowCrypt: Encrypt Gmail with PGP

by FlowCrypt a. s. · flowcrypt.com · Communication
FeaturedEstablished publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Simple end-to-end encryption to secure email and attachments on Google.

Users
70K
0 in 30 days
Rating
4.2 / 5
−0.52 in 30 days
Ratings
361
+1 in 30 days
Store rank
#2,750
#2,412 among extensions
Version
8.5.15
updated 18 Sep 2026

Users

monthly, 3 years
20K55K90KAug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 70,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
100231362Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 361 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About FlowCrypt: Encrypt Gmail with PGP

🟢 FlowCrypt adds a Secure Compose button to Gmail so you can send encrypted emails and attachments using OpenPGP. It is designed for individuals, teams, and Google Workspace organizations that need private email communication without changing their Gmail workflow. 🟢 You can generate a new PGP key in a few clicks, use an existing key, send encrypted attachments, sign messages, and exchange encrypted email even with recipients who don't use FlowCrypt. 🟢 FlowCrypt lets you use PGP encryption by generating a private and public key. It uses the recipient’s public key to encrypt the email, and only the recipient’s private key can decrypt the message and reveal its content. 🟢 We update the extension regularly (see the "Updated" field to the right). FlowCrypt allows you to: ✔ Set up the extension in just a few clicks. ✔ Generate private keys using the ECC and RSA (up to 4096-bit) algorithms. ✔ Use FlowCrypt’s own Attester public key server. ✔ Send and receive encrypted emails and attachments (up to 25MB, with previewing functionality) to anyone. ✔ Send and receive encrypted emails directly or through Encrypted Contact Page. ✔ Send password-protected emails to the recipient who doesn’t have any OpenPGP software (as well as receive such emails). ✔ Sign encrypted emails to let your recipients verify that the message is from you and that the content hasn’t been modified. 🌐 Website: https://flowcrypt.com/ 📁 Source code: https://github.com/FlowCrypt/ 📚 Documentation: https://flowcrypt.com/docs/ 🧠 Knowledge Base: https://flowcrypt.com/blog/questions/ 📱 Android & iOS apps: https://flowcrypt.com/download 📩 Looking forward to your feedback! Please email us at human@flowcrypt.com.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%0−0.51
30 days0+0.0%+1−0.52
6 months−10K−12.5%0−0.52
1 year−10K−12.5%+1−0.53

Chrome Web Store search rankings

Where FlowCrypt: Encrypt Gmail with PGP appears when people search the store, with the 30 day change
Search phrasePosition30 days
encrypt#10
release#14+5
receive#280
gmail#37+32
password-protected#99new

Version history

59 versions recorded
8.5.1517 Sep 2026
8.5.1416 Jun 2026
8.5.137 Jan 2026
8.5.1227 Nov 2025
8.5.1123 May 2025
8.5.1021 Feb 2025
8.5.96 Feb 2025
8.5.823 Dec 2024

Details

Category
Communication
First seen
4 Jul 2020
Size
3.8 MB
Languages
en
Pricing
Free
Privacy policy
flowcrypt.com
Support
flowcrypt.com
Extension ID
bnjglocicdkmhmoohhfkfkbbkejdhdgc

Permissions and risk

Minimal riskimpact 4, likelihood 0
Permissions
alarmsstoragetabsscriptingunlimitedStorageidentity
Site access
https://flowcrypt.com/*https://*.google.com/*https://outlook.live.com/*https://outlook.office365.com/*https://outlook.office.com/*https://graph.microsoft.com/*https://login.microsoftonline.com/*https://www.googleapis.com/*

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