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https://github.com/schmich/crypto-address-visualizer

Compare copy-pasted crypto addresses visually across services with images and checksums.
https://github.com/schmich/crypto-address-visualizer

bitcoin brave brave-extension browser-extension chrome chrome-extension cryptocurrency edge edge-extension ethereum firefox firefox-extension opera opera-extension privacy visualization vivaldi vivaldi-extension

Last synced: 8 days ago
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Compare copy-pasted crypto addresses visually across services with images and checksums.

Host: GitHub
URL: https://github.com/schmich/crypto-address-visualizer
Owner: schmich
License: mit
Created: 2021-08-26T16:08:57.000Z (over 3 years ago)
Default Branch: master
Last Pushed: 2021-09-01T11:02:38.000Z (over 3 years ago)
Last Synced: 2024-11-13T21:54:36.154Z (2 months ago)
Topics: bitcoin, brave, brave-extension, browser-extension, chrome, chrome-extension, cryptocurrency, edge, edge-extension, ethereum, firefox, firefox-extension, opera, opera-extension, privacy, visualization, vivaldi, vivaldi-extension
Language: JavaScript
Homepage: https://chrome.google.com/webstore/detail/crypto-address-visualizer/fbobbccllnpjhnmhaekkggngkomifhhp/
Size: 562 KB
Stars: 2
Watchers: 3
Forks: 0
Open Issues: 1
Metadata Files:
- Readme: README.md
- License: LICENSE

Awesome Lists containing this project

README

# Crypto Address Visualizer

Crypto Address Visualizer is a browser extension that gives you extra confidence when copy-pasting crypto wallet addresses between online crypto services by enabling you to compare addresses visually with images and checksums.

## Installation

Install the extension for your browser:

Chrome: [Install extension](https://chrome.google.com/webstore/detail/crypto-address-visualizer/fbobbccllnpjhnmhaekkggngkomifhhp/) \
Edge: *Support coming soon* \
Brave: *Support coming soon* \
Vivaldi: *Support coming soon* \
Opera: *Support coming soon* \
Firefox: *Support coming when Firefox supports [Manifest v3](https://blog.mozilla.org/addons/2021/05/27/manifest-v3-update/)*

## Quick Start

**1. Select your crypto wallet address text on any website**

**2. Right-click and select _Crypto Address Visualizer_**

**3. Repeat across websites and compare images and checksums to ensure addresses are the same**

When comparing visualizations, everything should be identical, though hosts can be different if the addresses are on different websites.

## Privacy & Security

The following steps have been taken to maximize privacy and security when using Crypto Address Visualizer:

1. **This extension is fully open source**

The full source code for this extension is available in the [crypto-address-visualizer repository](https://github.com/schmich/crypto-address-visualizer/tree/master/src).

1. **This extension _cannot_ make external requests**

Due to a very strict [content security policy](https://developers.google.com/web/fundamentals/security/csp), this extension *cannot* make external requests, so it cannot send information to or receive information from any external service. See `content_security_policy` in [manifest.json](src/manifest.json).

1. **This extension only requires one single permission**

Browser extensions must [declare all permissions](https://developer.chrome.com/docs/extensions/mv3/declare_permissions/) necessary to function. This extension only requires the [contextMenus permission](https://developer.chrome.com/docs/extensions/reference/contextMenus/), meaning its scope and capabilities are extremely limited. See `permissions` in [manifest.json](src/manifest.json).

1. **This extension _cannot_ read or edit content on any page**

Related to the previous point, due to permissions limitations, this extension cannot read or edit content on any page you visit. It has no access to your user profile or any of your personal data, public or private. It has no access to your clipboard.

It *only* has access to the text you select and provide to it through the context menu.

1. **This extension has zero tracking, zero analytics, and zero cookies**

No Google Analytics. No social media tracking. No marketing pixels. Nothing.

1. **This extension runs fully offline**

This extension is [offline enabled](https://developer.chrome.com/docs/apps/manifest/offline_enabled/) and does not need internet connectivity to function. See `offline_enabled` in [manifest.json](src/manifest.json).

1. **This extension does not store any data**

This extension does not use local storage or extension storage of any kind. Nothing is saved to or loaded from disk. This extension operates entirely in memory.

1. **This extension does not import any external assets at runtime**

All assets (HTML, CSS, JavaScript, images) are packaged and included with the extension at the time of publishing. No external assets are requested or included at runtime.

For visualization, parts of the following libraries are copied and packaged with this extension: [emn178/js-sha3](https://github.com/emn178/js-sha3), [emn178/js-crc](https://github.com/emn178/js-crc), [dmester/jdenticon](https://github.com/dmester/jdenticon), [stewartlord/identicon.js](https://github.com/stewartlord/identicon.js), [download13/blockies](https://github.com/download13/blockies), and [davidshimjs/qrcodejs](https://github.com/davidshimjs/qrcodejs).

1. **All loaded assets have subresource integrity checksums**

All assets loaded in the visualizer are protected with [subresource integrity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity) to ensure they were not manipulated or tampered with between development, packaging, distribution, installation, and runtime. See the `integrity` attributes in [visualizer.html](src/visualizer.html) for details.

## Donate

Crypto Address Visualizer is free forever. Donations are appreciated.

Bitcoin

3AMquLosfN95B7znVX4JSMTwrbps7FegKc