About Asermu
The writing tool, and the person behind it.
What Asermu is
Asermu is an offline-first novel writing app for fiction writers — novelists, worldbuilders, series planners. It runs in your browser, stores your manuscripts on your device, and includes modules for characters, locations, timelines, plot structure, and worldbuilding.
It has no AI writing features. No autocomplete, no text generation, no "write my scene" button. The reasoning behind that choice is on the blog.
Who built it
Asermu is built and maintained by Carlos Diaz — a Canarian software engineer based in England. Asermu wasn't built by a working novelist. It was built by someone who spent years procrastinating on writing by auditioning every writing app instead. Eventually it seemed faster to build the one I actually wanted than to keep downloading new ones. Asermu isn't my first product — it's the one I kept coming back to.
The name draws from the Amazigh language tradition — the language family of the Guanche people of the Canary Islands, my ancestors. Asefru means poem or verse. Aru means to write. The prefix ase- marks a tool or instrument. Asermu is a coined word that follows real Amazigh morphology: a writing instrument, named in a language family older than most of the languages software tends to be named in.
What Asermu believes
- Your words belong to you. Manuscripts live on your device, in open formats. Export at any time, on any tier.
- Writing fiction and generating text are different problems. Asermu is a writing tool, not a co-author.
- A good tool is one you can keep.The Lifetime plan exists so you don't have to rent the place where you work.
- Warm, not cold. Writing is a human act. The tool should feel that way.
Contact
Email: [email protected]
Elsewhere: Bluesky @asermu, X @Asermu_app, Mastodon @[email protected].
Legal
Asermu is operated by Carlos Diaz, a sole trader based in England (124 City Road, London EC1V 2NX). See the privacy policy and terms for details.