Free / Open-sourceLargely free community-driven prompt sharing and instant chatting, rather than a transactional marketplace.
AltPlot records 0 monthly visits with 0% month-over-month growth and Free Trial pricing. PromptBase records 538,129 monthly visits with -1.8% growth and Paid pricing.
Email-delivered fanfiction where you steer every chapter
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | altplot.com | promptbase.com |
| Pricing Model | Free Trial | Paid |
| Monthly Visits | 0 (0) | 538.13K (538,129) |
| MoM Traffic Delta | 0 (0%) |
| -9.85K (-1.8%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (27.7%) |
|---|
| Direct Visits / mo | 0 | 256.49K |
|---|
| User Rating | 3.5 | 3.7 |
|---|
| Supported Platforms | Website | Website |
|---|
Email-delivered fanfiction where you steer every chapter
Each chapter is written specifically for your request rather than pulled from a shared library, with the relationship dynamic you choose.
You receive chapters by email and reply directly to influence the story, so no separate app or login flow is needed to keep reading.
Steer the plot either with predefined buttons for quick choices or with free text when you want to describe something specific.
Both the first chapter and each requested continuation are delivered within a 24-hour window.

Buy a prompt that already works - or sell the ones you have perfected.
Thousands of ready-to-use prompts organised by model and by output type, from illustration styles to marketing copy.
Listings are grouped by the model they were built for, so you can filter to the tool you actually use.
Each prompt is shown with example outputs, making it easy to judge the style before spending anything.
Anyone can upload prompts for sale and earn revenue share on every copy sold.
Free / Open-sourceLargely free community-driven prompt sharing and instant chatting, rather than a transactional marketplace.
SpecialistMassive free prompt search engine and discovery platform, but lacks PromptBase's direct creator monetization marketplace.
The largest public Japanese storywriting AI, trained on a massive corpus
#3
Free, unlimited AI story generator with no sign-up and no filters

SpecialistDeeply specialized catalog for Midjourney styles and reference codes, but lacks multi-model text and video coverage.
Free / Open-sourceFree, community-curated AI prompt library for ChatGPT, Claude and Gemini
A storytelling suite for planning, worldbuilding, and drafting your novel

Free / Open-sourceCommunity marketplace for AI prompts, agents, and automations

SpecialistA searchable AI prompt database with 25 AI tools built in

Free / Open-sourceA free prompt library and a curated, no-noise AI tools directory

An AI writing room that finishes your whole book
Structured planning and drafting for web serial authors
Free / Open-sourceLargely free community-driven prompt sharing and instant chatting, rather than a transactional marketplace.
SpecialistMassive free prompt search engine and discovery platform, but lacks PromptBase's direct creator monetization marketplace.
The largest public Japanese storywriting AI, trained on a massive corpus
Free, unlimited AI story generator with no sign-up and no filters
SpecialistDeeply specialized catalog for Midjourney styles and reference codes, but lacks multi-model text and video coverage.
Free / Open-sourceFree, community-curated AI prompt library for ChatGPT, Claude and Gemini
A storytelling suite for planning, worldbuilding, and drafting your novel
Free / Open-sourceCommunity marketplace for AI prompts, agents, and automations
SpecialistA searchable AI prompt database with 25 AI tools built in
Free / Open-sourceA free prompt library and a curated, no-noise AI tools directory
An AI writing room that finishes your whole book
Structured planning and drafting for web serial authors