Chrome //
Extensions 
Chrome
Web store 
QR Code Maker and Decoder
QR Code Maker. Text, URL, phone numbers, SMS and contacts are supported. You can also decode QR code from image.
HEIC Image Viewer Decoder
This app allows you to view and decode directly HEIC, HEIF images in your browser, and Save as a PNG, JPEG file format.
URL Encoder, Decoder and JSON Formatter Tool
Automatic URL Encoder, Decoder tool with JSON Formatter, Validator and Beautifier features
Base64 Encoder and Decoder
Encode plain text to Base64, Decode Base64 text to plain text – All functionality available offline also.
Gato Base 64 Encoder / Decoder
Gato Base 64 Encoder / Decoder encodes to and decodes from Base 64 format.
WebP, BPG, JXR Image Decoder
This app allows you to view and decode directly WebP, BPG, JXR images in your browser, and Save as a PNG, JPEG file format.
URL Encoder and Decoder
Converts characters into a format that can safely be transmitted over the internet as well as decodes them back to normal
URL Query Decoder
This extension will break apart the query parameters in the url and decode them. Also allows you to copy them to the clipboard.
Gato URL Encoder / Decoder
Gato URL Encoder / Decoder encodes to and decodes from url encoded format.