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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Start
4.72
Latest
4.72
7-day rating change
0.00
2026年7月13日2026年7月19日
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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
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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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I liked this extension when I used it in the past. However, it does not work with Google's Advanced Protection service. I really wish that Google would allow this app for those that are enrolled in the Advanced Protection Program. The inability to use this app under that service really irritates me.
This software is already obsolete. No support response, no update nor no severe security fix. In addition, hardcoded part is also too old, so many functions don't work. To keep your pgp/gpg providing security, this is already dead. We need other open sourse fine pgp/gpg frontend for gmail. I completely disappointed this front end of pgp/gpg. Especially, this extention breaks our pgp/gpg encryped or signed email. At this moment, we must call it non-secure ware just saying itself sesure, unfortunately this is same as malware. Do not use it.
Крутая вещь
I just recently started using , and as others have said the onboarding process is seamless so for now four stars , I will revisit after some testing. A big thanks to the dev team @ FlowCrypt.)
No undo in secure composed emails. Just started using it, there is no undo after email is sent for a certain time (seconds). would be a good feature. Thanks.
It's a nice extension but it is reserved for experts on encryption like me <: Just kidding everyone can use it and it is a really helpful extension. I send AES-256 bit encrypted files with a software like this. Yes I said software. This is like one.
Lässt sich superschnell und einfach einrichten.
Very easy to use. It loses a star because it does not yet support autocrypt, particularly sending autocrypt headers. I'd also really like to see the compose encrypted mail interface replace the regular compose mail interface (particularly when it comes to Gmail shortcuts). Since the new interface can also send mail unencrypted, I don't need both. It would make the UI cleaner.
Very pleased that I can use something like this for my small business. Thanks for helping secure our Gmail account because so many people use Gmail and it still comes off as a professional extension for emails. -JR
The UI is decent but there are some serious functional issues with it. Their (hard-coded) key server doesn't seem to find keys in the other key servers it claims to look in. Their key server and/or UI doesn't seem to handle multiple keys that match a given recipient in public key servers. There is no ability to choose one and It's unclear how it's even choosing the key it chooses to use when multiple exist. I would have assumed newest key of highest strength, or most signatures, etc. but neither of those are the case. With these key server issues, the extension is not useful for all but very narrow use-cases. I've contacted support about these issues but the only one response I got back was pretty lack-luster and my followup has gone unanswered. So TL;DR: I cannot recommend this extension.