PAe CTT - Cliente de firma electrónica de @firma
Source-code: https://github.com/ctt-gob-es/clienteafirma
Archives
Create and view web archives
Regex101
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java. Features a regex quiz & library.
YaCy
YaCy P2P - Decentralized Search Engine
Search engine