PassLok for Email

High security encryption for email. PassLok is in no way associated with Gmail, Yahoo, or Outlook.

PassLok for Email is a powerful Chrome extension designed to empower users with high-security, easy-to-use end-to-end encryption for emails and real-time chat. Compatible with Gmail, Yahoo Mail, and Outlook Online, it offers robust protection without relying on servers, making it immune to hacking or government intervention.

Users can encrypt messages and files effortlessly via a simple interface that integrates directly into email compose and reply windows. PassLok supports two encryption modes: signed mode for retrievable encrypted messages and read-once mode that destructs messages after reading to maximize security. Additionally, it features real-time WebRTC chat with text, file, audio, and video capabilities.

Special security features include encrypting messages into images, concealed and invisible modes to mask the presence of encrypted content, and hidden messages encrypted with separate keys. Based on the industry-trusted NaCl encryption engine and 256-bit XSalsa20 symmetric cipher, PassLok ensures state-of-the-art cryptographic strength. All encryption occurs client-side, guaranteeing that your data remains private with no passwords stored or transmitted.

Ideal for privacy-conscious users, PassLok for Email is open-source, transparent, and designed to put control of private communication in your hands. It is currently in public beta and welcomes community feedback via GitHub.

By:
https://passlok.com/
Users:
367 3
Rating:
5.00
(2)
Version:
1.0 Last updated: 2024-11-27
Creation date:
2020-05-14
Risk:
High risk impact Very low risk likelihood
Permissions:
  • storage
  • alarms
Host permissions:
  • https://mail.google.com/*
  • http://mail.google.com/*
  • https://google.com/*
  • http://google.com/*
  • http://*.mail.yahoo.com/*
  • https://*.mail.yahoo.com/*
  • http://*.live.com/*
  • https://*.live.com/*
Size:
202.00KB
Email:
fr*****@gmail.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Chrome Web Store
Data ingested on:
2025-07-15

Other platforms

PassLok for Email (v1.0)
52 4.50 (2)

User reviews

Best extension for encrypting email. Easy and powerful.
by Fr*****, 2017-09-18
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

PassLok for Email requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: {{requestedDomains}}
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension.

PassLok for Email has earned a good reputation and can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* ** ****** ** ********
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

Promo images

Small promo image

Compare extensions

Similar extensions

Here are some Chrome extensions that are similar to PassLok for Email:

Popular extensions / apps

Here are some popular extensions / apps that you might be interested in: