Every choice is a door. Open all of them.
Every story is a map of the stories it could have been.
BeginA story is a tree, not a line.
Most fiction marches in one direction. Alexandria branches. Reach a turning point and you don't pick a single path — you take every path. Each fork becomes its own living timeline, and they all coexist.
Four moves, infinite stories.
Spark a premise
Give it a single sentence — a genre, a tone, a what-if. Alexandria writes the opening passage.
Read a passage
Each beat is about 250 words. Short enough that the tree, not the page count, is the experience.
Steer a fork
Nudge the next passage — "but she refuses the offer" — and a new branch grows from where you stood.
Revisit, instantly
Every passage is frozen once written. Jump back to any timeline with zero waiting and zero cost.
A library you build, not output you discard.
Written once, yours forever
Revisiting a passage is instant and free — no regeneration, no surprise bills. The story you wrote stays exactly as you left it.
A free allowance to begin
Every account comes with a built-in allowance of new passages — enough to grow real timelines before you ever think about cost.
Single-player, no noise
No feeds, no followers, no algorithm. Just you and the tree of everything your story could become.
The short version.
Is it open yet?
Alexandria is in public beta. Sign in with a magic link and start writing — no waitlist.
Do I need to pay to start?
No. Every account comes with a free allowance of new passages to get you going — no setup, no card required.
What languages can I write in?
English or Brazilian Portuguese, chosen per story — independent of the language you read the site in.
Is this an AI book generator?
No. Alexandria doesn't spit out a finished novel. It grows a branching tree you explore and steer, one passage at a time.