CyberChef : A simple, intuitive web app for analysing and decoding data without having to deal with complex tools or programming languages. CyberChef encourages b...
Kaitai Struct : A new way to develop parsers for binary structures.
Declarative: describe the very structure of the data, not how you read or write it
TileMill : TileMill is an application for making beautiful maps
D3.js : D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG and CSS. D3’s emphasis on web ...
librehosters : librehosters is a network of cooperation and solidarity that uses free software to encourage decentralisation through federation and distributed platf...
The GeoNames geographical database covers all countries and contains over eleven million placenames that are available for download free of charge.