Mailvelope - Secure your email with PGP
Communication
Protect your email conversations and attachments on Gmail, Nextcloud, Outlook & more with PGP and end-to-end encryption.
Users
100K
Rating
4.4
Reviews
436
7D Growth
0|0%
Stable signalNo paid features detectedMedium-risk permissions
FlowCrypt: Encrypt Gmail with PGP
Simple end-to-end encryption to secure email and attachments on Google.
Users70KCurrent public install base
Rating4.7Store average score
Reviews359Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
6 assetsFlowCrypt: Encrypt Gmail with PGP Media preview
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User Growth Over Time
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7-day rating change
Start
4.72
Latest
4.72
7-day rating change
0.00
2026年7月14日2026年7月20日
Growth overview
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1-day growthFlat
00%7-day growthFlat
00%30-day growthDeclining
-10K-12.5%Technical snapshot
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Version8.5.13
ManifestV3
Size3.64MiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
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🟢 A simple end-to-end encryption to secure your emails and attachments on Google, including Google Workspace, Business, and Enterprise using OpenPGP.
🟢 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.
🟢 Adds a Secure Compose button to Gmail, allowing you to send private PGP-encrypted emails when you choose to.
🟢 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.
Reviews
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Store average score4.7Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.8Average computed only from synced review bodies below
Reviews with text276Synced review bodies
Total ratings / reviews359Chrome Web Store public rating/review count
Store average score: 4.7. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Well-integrated with gmail. Extremely responsive support from Tom! Thanks Tom!
Fantastic! Mail encryption simplified. Everyone, and I mean EVERYONE, should be using encryption for their email. CryptUP is an excellent plugin to help GMail users secure their email. Remember: Email is like sending a postcard, anyone with a will can read it. Encryption makes your Email private.
Works good so far. I can't wait to see the Android App so I can see my emails on my phone.
Excellent.
Great add-on. Very simple to instal and start using.
Simplified PGP and made sending/receiving messages+files super easy!
Awesome extension!! Can't believe it took this long. Been looking for something like this for years!!
Excellent tool with top notch support. PGP just got easy.
Didn't allow me to add contacts which didn't use this extension forcing me to brick it. UPDATE: Tom responded within a couple hours and fixed the issue I was having importing my key. Very solid thus far kudos to Tom and the CryptUp team.
Useful extension, seamlessly integrated with GMail. The developer was very helpful and quickly implemented my feature requests.