The two free AI story generators that ask for nothing at all are Perchance (no sign-up, no daily limit) and Toolbaz (no sign-up, up to about 4,000 words a click). AI Dungeon, NovelAI, Squibler and Sudowrite each give you a free tier or a trial, then ask for a subscription. Free works for one story. For a long one, look at what the tool does once the story gets big: Perchance's own code says it cuts the middle out, and the AI never sees that part.
Free AI story generators compared
| Tool | What's free | Sign-up | How long, how much it remembers | What you end up with |
|---|---|---|---|---|
| Perchance | Everything: "no daily usage restrictions" | None | Writes paragraph by paragraph with no length cap. Once the story outgrows the model's window, the middle is cut | A story saved in that browser; export as a .ai-story.json file |
| Toolbaz | The generator; a paid Pro exists | None | One story per click, with length presets up to "Novella (3000 – 4000 words)" | One story; export as TXT, DOC or HTML |
| AI Dungeon | Free tier (Wanderer) | Account | "Up to 4k" tokens of context, 25 memories | An adventure, turn by turn. Journey ($14.99/mo) gets 8k, Mythic ($49.99) 32k |
| NovelAI | "50 free Text generations" | Account with a verified email | 28,672 tokens on the $25 Opus tier | A story in NovelAI; then $10, $15 or $25 a month |
| Squibler | 1,000 AI credits a month, "$0 forever" | Account | Free tier is for testing; "Generate full-length manuscripts" is listed under Plus | Drafts; PDF and DOCX export on Plus ($15.83/mo billed annually) |
| Sudowrite | A trial, "No credit card" | Account | The page doesn't say how long the trial lasts | Your projects stay readable, but you "won't be able to use AI features without a paid plan" |
Checked 28 October 2026: every figure above was read on the vendor's own page that day. Perchance's story page refused our fetch, so its row comes from the generator's source, which Perchance serves to anyone through its public download endpoint. DreamGen isn't listed: its pricing page shows paid plans only.
Perchance: free and unlimited, until the story gets long
Perchance is the free AI story generator people mean when they say "unlimited". Its own description says: "Completely free & unlimited AI story generator/writer based on a prompt. No sign-up or login." It writes "LONG stories, paragraph-by-paragraph, optionally guiding the AI on what happens next", and it means it. Nothing stops you at 2,000 words.
What happens at 20,000 words is in the code. Perchance's AI text plugin, which the story generator imports, carries this warning for generator builders: when the input is "longer than the AI model's context window allows… the MIDDLE of the text was cut out ("middle-out" truncation) before it was sent to the AI… The AI did not see the removed middle part." Its advice is to "trim old chat/story history… summarize older history, or shorten long lore/instructions."
So a long Perchance story keeps its opening and its last pages in view and quietly loses chapter 4. It's the same thing users run into: one regular on the Perchance community explained that memory "isn't about taking up too much space on a server", it's "about how much text/stuff the AI has to do each time you press generate" (Lemmy, c/perchance).
The second thing in the code is where your story lives. There's no account, so stories are kept in the browser itself, on that device, and after you've generated 300 times over 10 days without exporting, the page shows: "Please back up your stories to prevent data loss." Until you export it, the story is only as safe as that browser's data. The 💾 export button saves it as a file; use it.
Toolbaz: one story per click
Toolbaz is the other no-login option, and it's built differently: you fill in a form (characters, setting, genre, point of view, tone, length) and get one finished story. The length presets run from "Short Story (300 – 600 words)" to "Novella (3000 – 4000 words)". You pick the model too, from a list that includes Gemini 3.6 Flash, DeepSeek V3.1, GPT-5.2 and Claude Sonnet 4.
That's a good machine for a bedtime story or a writing prompt. For anything longer it hands the work back to you. An 80,000-word novel is at least twenty Novella clicks, and the form asks for characters, setting and notes, not the story so far. Continuing a story is a separate tool on the site (AI Story Continuer). When you have a story you like, export it as TXT, DOC or HTML before you close the tab.
Free tiers of the story apps: AI Dungeon, NovelAI, Squibler, Sudowrite
These are subscription products with a free door:
- AI Dungeon is free to play, and its free Wanderer tier gets "up to 4k" tokens of context and 25 memories. Four thousand tokens is roughly 3,000 words of English, story and memory together. The window doubles on Journey at $14.99 a month and reaches 32k on Mythic at $49.99.
- NovelAI gives a verified account 50 free text generations, which is a scene or two, then Tablet at $10, Scroll at $15 or Opus at $25 a month. Only Opus states its window: 28,672 tokens.
- Squibler has a $0 tier with no time limit and 1,000 AI credits a month. Its pricing page says the free tier lets you "Test full book and screenplay creation". Generating full-length manuscripts, and PDF and DOCX export, are on Plus.
- Sudowrite offers a trial with no card. Its plans start at $10 a month billed yearly, and its FAQ is plain about the end of it: without a paid plan you "won't be able to use AI features".
A free AI story generator with no restrictions
"No restrictions" means two different things, and the tools only promise one of them.
No sign-up and no usage cap: that's Perchance, and Toolbaz for single stories. No content filter is a different promise. Toolbaz is the only one here whose page says anything about it: three of its models (L3-Euryale-v2.1, Midnight-Rose and Unfiltered_X) are marked as unfiltered, with "minimal constraints" or "minimal filtering". The Perchance description we read talks about horror, creepypasta and "basically anything else", but says nothing either way about explicit scenes.
If what you were refused is a romance or a sex scene, the AI smut writer guide quotes each tool's written policy on explicit content, and uncensored AI models for fiction lists the models fiction writers use when the big chatbots say no.
Where the free generators fall short
Perchance: unlimited length, but past the model's window it drops the middle of your story, and the story lives in one browser on one device until you export it.
Toolbaz: one story per click, 4,000 words at most, and nothing carries from one click to the next unless you paste it into another tool.
AI Dungeon: a game first. The free 4k window is a few pages, and what you keep is a turn log, not chapters.
NovelAI, Squibler, Sudowrite: the free part is a sample. Fifty generations, a test tier, a trial of unstated length; then a monthly subscription that bills whether or not you wrote that month.
When you want a book, not a story
Every limit above is the same limit: the tool doesn't remember the book for you. That's the one thing KudoWrite is built to do.
Where Perchance drops the middle and Toolbaz starts every click from a blank form, KudoWrite keeps the book's memory outside the model's window: as you write, it keeps a story bible (characters, places, items, events) and a running summary of everything so far up to date. Nothing is cut to make room; chapter 4 is in the summary, and its people are in the bible. There's no cap on chapters or words.
It runs in a browser, as Perchance does, but the story is saved to your account, not to the browser, and opens on any device you sign in from. The account comes with one free credit to try it once the email is confirmed; then it's one-off packs, $3.50 for 100 credits (about a short novel), nothing monthly, and no content filter of KudoWrite's own.
Already have a story in a free generator? Export it from Toolbaz as TXT, or copy your Perchance story into a .txt file, and import it (My Books → Import): chapters and scene breaks are detected for free. Then start writing the next chapter with the whole story behind it.
The free tools are worth keeping for what they do well: a quick idea, a prompt, a scene to see whether a premise has legs. When one of those stories won't leave you alone, write its next scene as three beats. Why long stories lose the thread in any tool, and the manual fixes that help, are in AI forgets my story.