Prompt engineering, on tap

Stop writing prompts that waste good ideas.

You know what you want. The AI doesn't. Promptello interviews you like an expert prompt engineer and hands you a copy-ready, model-optimised prompt — no prompt-engineering skills required.

5 free prompts, no card required

1. Your idea

"I need a launch email for our new pricing"

2. Promptello asks

  • Who's the audience?
  • Existing customersTrial usersCold list
  • Tone? Length? Offer?

3. Engineered prompt

You are a senior lifecycle marketer.
Write a launch email announcing new
pricing to EXISTING customers…
Constraints: 120–160 words, warm but
direct, one CTA, no hype adjectives.
Copy promptCopy & open in ChatGPT

Why your AI output feels flat

It's almost never the model. It's the prompt.

Vague prompt, generic answer

One-line prompts get one-size-fits-all output. The detail that makes an answer useful is exactly the detail you forgot to mention.

Every model wants something different

ChatGPT likes structured instructions, Claude responds to XML-ish tags, Midjourney needs parameters. The same prompt does not travel well.

Your best prompts disappear

That perfect prompt from three weeks ago is buried in a chat log somewhere. So you rewrite it from scratch, worse, again.

Three steps. No expertise needed.

You bring the intent. Promptello handles the engineering.

1

Describe your goal in plain words

Type it or dictate it. No structure, no jargon — just say what you're trying to get done.

Type or dictate
2

Answer a few sharp questions

Promptello interviews you like a prompt engineer would: audience, tone, constraints, format — the details that actually change the output.

3–5 questions
3

Copy your engineered prompt

Paste it into ChatGPT, Claude, Midjourney — wherever you work. One click on "Copy & open in model" does both at once.

Copy & open in model

Everything an expert would do, done for you

Promptello isn't a prompt template pack. It's a working prompt engineer with a memory of your business.

Adaptive AI interview

Finds the details you didn't know mattered. Every question is chosen for your specific request — never a generic form.

11 target models supported

Text (ChatGPT, Claude, Gemini), image (Midjourney, Flux, Stable Diffusion, Nano Banana), video (Sora, Runway, Veo) and app-builders (Lovable) — each prompt formatted to that model's best practices.

Built-in critique & refine

Every prompt is reviewed by a second AI pass against the target model's known weaknesses, then improved — before you ever see it.

Tighten loop

Not quite right? Promptello asks follow-up questions targeting the weakest parts and forges a sharper new version.

Company Intelligence

Point it at your website. Promptello crawls it into a Master Company Prompt so every prompt speaks in your voice, about your actual product.

Layered context

Company → Brand → Project. Your files and knowledge are injected automatically, so you stop re-explaining yourself every session.

Reusable templates

{{variables}} turn a great prompt into a repeatable tool. Fill the blanks, preview live, copy, go.

Full version history

Every change is a version. Diff any two, restore an older one — a good prompt is never lost again.

A real prompt library

Voice dictation, file attachments, folders, tags and favourites, with full-text search across everything you've forged.

Marketplace

Publish your best prompts to the public storefront and set a price. The storefront is live; payouts are coming.

For your life and your business

Same engine, two very different kinds of leverage.

For you personally

Get more out of every AI you already use

  • Job hunting

    Attach your CV, describe the role. You get a prompt that turns ChatGPT into a career strategist — tailored cover letter, gap analysis, interview answers in your own voice.

  • Planning something big

    A house move, a wedding, a trip. Promptello asks about budget, constraints and dates, then hands you a prompt that produces an actual plan, not a listicle.

  • Learning a new skill

    Say what you want to learn and how much time you have. The prompt builds you a paced curriculum with checkpoints instead of vague advice.

  • Creative projects

    Midjourney and Sora prompts with the lighting, lens, style and parameters spelled out properly — the difference between a blurry idea and a usable frame.

For your business

Consistent, on-brand output across the team

  • On-brand content at scale

    Scan your site once. Every marketing prompt after that already knows your product, tone and audience — so drafts land close to final.

  • SEO briefs

    Give the topic, answer a few questions on intent and audience. Out comes a prompt that generates briefs with structure, angles and internal-link logic.

  • Product descriptions

    Build one {{variable}} template, reuse it across the whole catalogue. Consistent voice, no copy-paste drift.

  • Team & client work

    Shared brands, projects and version history mean your team ships one consistent voice — and you can publish and sell the prompts you build.

Same idea. Very different prompt.

A real marketing request, before and after Promptello's interview.

What most people type

Write me a marketing email about our new pricing.

Result: a generic, exclamation-heavy email that mentions no real benefit, addresses nobody in particular, and needs a full rewrite.

What Promptello hands you

You are a senior lifecycle marketing writer for a
B2B SaaS product.

TASK
Write a launch email announcing new pricing to
EXISTING paying customers.

AUDIENCE
Current subscribers on the legacy plan. They care
about cost predictability and not losing features.

TONE
Warm, direct, plainly honest. No hype adjectives,
no exclamation marks.

CONSTRAINTS
- 120–160 words
- Subject line + preview text + body
- Lead with what changes FOR THEM, not for us
- Exactly one call to action: "See your new plan"
- Acknowledge the price change openly; do not bury it

OUTPUT
Return: subject, preview text, body, CTA label.

What the interview added

  • Role and expertise set, so the model writes like a specialist
  • Audience, tone and length pinned down — no guessing
  • Explicit constraints: one CTA, no hype words, plain English
  • Output format defined, so the result is usable as-is

Try the real thing — 5 free prompts

This is the actual product, not a video. Describe something you need right now and see what comes back.

The real engine — intent, follow-ups, engineered prompt5 of 5 free prompts left

⌘/Ctrl + Enter to start · we'll ask a few quick questions next

Simple, honest pricing

Start free. Upgrade when you're hooked.

Save 17%

Free

Kick the tires. Forge a few prompts, see the magic.

$0
  • 5 prompt runs to try it out
  • All supported AI models
  • Basic library
Most popular

Pro

Unlimited forging, versions, brands and projects.

$29/mo
  • Unlimited prompt runs
  • Version history & diffs
  • Brands, projects, folders, tags
  • Voice-to-prompt (Whisper)
  • Export as Markdown / JSON

Straight answers

The things people ask before they try it.

Your next prompt could be the good one

Describe what you want. Answer a few questions. Copy a prompt that actually gets you what you had in mind.

5 free prompts, no card required