An offline-first writing suite
Your stories live on your device. Not on our servers.
Manuscript editor, worldbuilding tools, plot tracking, and character management — all offline, all on your device.
Seven integrated modules
Everything you need to write your story
Four modules free forever. Three more when you upgrade. No trial period, no word count limits. Paid plans from $10/month.
Tools for the journey
Built for writers who write
Your writing should never depend on a server, a subscription, or an algorithm. Asermu stores everything locally, so you can write anywhere — on your terms.
Write without internet
After initial setup, every word is saved directly to your device. No cloud round-trip, no loading spinners, no connection errors interrupting your flow.
Your data stays yours
Your manuscripts, characters, and world-building notes live on your machine. No one else can read them. Export anytime. No vendor lock-in.
Fast by design
Everything runs locally. The editor responds without waiting for a server. Switching chapters, searching characters, browsing your timeline — no network latency.
Every word is yours
No algorithm writes your sentences. No machine suggests your next paragraph. The ideas, the voice, the craft — it all comes from you. That is the point.
Get started
Three steps to your first chapter
Create a project
Sign up for free and create your first project in seconds. The free plan includes the manuscript editor, character profiles, locations, and timeline — everything you need to start writing.
Write and organize
Use the distraction-free editor to write your chapters. Build out your cast with character profiles. Track locations and plot threads across chapters. Everything auto-saves.
Export and share
When you're ready, export your manuscript as Markdown. Pro and Lifetime users can also export as PDF and EPUB. Your formatting, structure, and styles are preserved exactly as you wrote them.
Watch the 2-minute demo
See asermu in action
The name
Asermu
A name drawn from the Amazigh language tradition — the same tradition that gave the world Tifinagh, one of humanity's oldest writing systems. In Amazigh, asefru means poem, aru means to write, and the ase‑ prefix marks a tool or instrument. Asermu lives at the intersection of all three.
Thousands of years ago, the Amazigh peoples split across an ocean. The Tuareg carried Tifinagh south into the Sahara, carving it into rock and silver. The Guanche carried their branch west to the Canary Islands, pressing pintaderas into clay and skin. Same impulse, different materials — separated by water, connected by the belief that marks carry meaning across time.
Asermu is built by a Canarian — someone from those islands, where Amazigh heritage runs through the volcanic rock and the bloodlines alike. Writing is mark-making. Every word you put on the page is an imprint — your own crossing through the unknown.
The “Forever Yours” Promise
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 — long enough to watch tools come and go, and to know exactly what it feels like when the one you trusted disappears.
If Asermu ever shuts down, I release standalone installers. Every offline feature keeps working indefinitely. No expiration date. No phone-home check. Your copy of the app is yours.
Your stories belong to you. Your worldbuilding belongs to you. The tool you used to create them should too.
Frequently asked questions
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Your story starts here.
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