'Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, can be copied, tagged and modified either from the applications directly or from your own text editor. The notes are in Markdown format.
The notes can be synchronised with various cloud services including Nextcloud, Dropbox, OneDrive, WebDAV or the file system (for example with a network directory). When synchronising the notes, notebooks, tags and other metadata are saved to plain text files which can be easily inspected, backed up and moved around.
The application is available for Windows, Linux, macOS, Android and iOS (the terminal app also works on FreeBSD). A Web Clipper, to save web pages and screenshots from your browser, is also available for Firefox and Chrome.'

A great multiplateform tool for finding duplicate files on one's computer and hard-drives

'moteur de recherche minimaliste en français qui renvoie vers les liens de téléchargement des sites officiels des éditeurs de logiciels'
Testé et approuvé!

'No adware, no spyware, no bundles, no malware, fast downloads, free services and a single ad.'
All the software they display seems to be exellent -- a great resource!
All is free, and many programs are opensource.
(NB: A l'inverse, attention avec ce qui vient de SourceForge, il peut y a voir des malwares inclus. Le mieux est d'analyser le fichier ici: https://www.virustotal.com/)