Dabble Writer - Writing software for novelists.
Scritika - Scritika is advanced-level writing software that helps the writer to tell their stories in a creative and smart way, and it encourages you to compose the stories quickly.
Novlr - Online word processor and organizer for novel writing.
Manuskript - Open-source tool for writers.
SHAXPIR - A modern cloud workspace for fiction writing & worldbuilding
Novelize - Novelize is an online novel writing app designed to keep authors on track.