PromptStack
Smarter prompts. Seamless workflows.
Everything you need to build AI workflows, nothing you don’t
Prompt Chaining
Chain prompts to flow outputs directly into the next step - no copy-pasta required.
Organized
Keep everything tidy with a folder-based structure. Organize workflows by project, client, or idea so nothing gets lost.
BYOK
(Bring Your Own Key)
Use your own OpenAI, Anthropic, or Gemini keys together in the same workflow. Your data stays yours.
Built for Flow
A clean interface designed for fast iteration, branching ideas, and focused building — without getting in your way.
Built for Builders
Designed for indie devs, creators, and curious tinkerers. Built to stay out of your way.
Built for Iteration
Save workflows once, clone them as needed, and tweak prompts to instantly test new ideas across projects or use cases.
Built by a developer, for people who want their tools to respect their time, because we all have more important things to do.
PromptStack wasn’t built to chase the AI trend, it was built to solve a personal pain.I’m Joshua Allen - indie developer, software engineer, husband, and dad to a curious 3-year-old. I juggle code, creativity, and family life every day, and I don’t have time for tools that fight back.When working with LLMs, I kept hitting the same walls:
Prompt inputs were unwieldy
There was no clean way to branch or evolve ideas
I couldn’t track experiments without duct-taping tools together
I didn’t want a bloated dashboard, I wanted a workbench. Something lightweight. A tool that respects both your time and your curiosity. Something you could grow with, from quick tests to production workflows, without needing an expensive subscription or team license.PromptStack is my answer to that.If you’re a builder, a tinkerer, or someone trying to stay curious without burning out - this is for you.
Get early access. Help shape the future.
PromptStack is launching soon. If you want to be among the first to try it and help shape what it becomes, join the waitlist!You’ll get:
Be among the first to try PromptStack before it launches.
Lock in lifetime access to the Solo tier at a one-time discounted price, no subscriptions, ever.
Join a focused community of builders, prompt engineers, and tinkerers.
Get an exclusive deal when PromptStack officially goes live.
Begin building faster with a curated set of ready-to-use prompt chains.
Help decide what gets built next by voting on roadmap features.
Share your thoughts directly with the creator (me) and shape the future of the product.
Get recognized in the app and in the Discord as an early supporter with a special Founder badge.
Planned Pricing
Simple pricing. No subscriptions. No bloat.
Pay once. Own it forever.
Solo - Founder's Tier
(Lifetime)
$39
One-Time
Perfect for: indie devs, solo tinkerers, and prompt engineers who want full control without ongoing costs.
Includes:
Launch discount
Folder organization
5 saved workflows
BYOK: OpenAI, Anthropic, Gemini
Use multiple models in a single workflow
Workflow cloning + iteration
Lifetime updates to Solo features
Founder’s badge inside the app
No subscriptions. Yours forever.
Pro
(Coming Soon)
$79
One-Time or Subscription TBD
For builders who need more scale and sharing power.
Includes everything in Solo, plus:
Unlimited workflows
Workflow sharing
Advanced model options
Export/import support
Early access to plugin system
Priority support
Launching soon — upgrade from Founder when you’re ready.
Final pricing may adjust at launch, but if you’re on the waitlist, you’ll get the best deal.