free & open source tools:

Asana
Audacity
Autodesk Fusion 360 -CAD/CAM software
Bandlab
Bitly
Blender
Cakewalk
Canva
Codecademy
Dall-E AI
Dark Table
DaVinci Resolve
FreeCAD 3D modeler
FreeCodeCamp
GIMP image editing
Glitch web builder
Glimpse image editor
Inkscape vector graphics editor
KDEnLive video editing
LibreOffice
Linktree
Musescore
Open Broadcaster Software (OBS)
Photopea graphics editor
PhotoScape
Pixlr online photo editor
QRCode Monkey
Reaper DAW
Shotcut
TensorFlow machine learning
The Noun Project
TinyURL
Unreal Engine 3D creation tool
Unsplash
VLC media player
7-Zip file archiver