Freelancify - Self-Management for freelancers
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
AND CO - AND CO helps freelancers, entrepreneurs and other small businesses run their business smarter.
Standard Notes - A safe place for your notes, thoughts, and life's work
Coworkly - Coworkly is a free tool for creative contractors to put freelance bookings, payments, & work goals on auto-pilot!It's a portfolio, scope of work, & invoice bundled into one simple flow that allows clients to reserve your time in a few easy steps.
Joplin - 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, tagged and modified either from the applications directly or from your own text editor.