Code breaking? Credits burning? Start with a build-ready plan.
Zalcro plans your app and gives you a blueprint, diagram and paste-ready prompts for Lovable, Bolt, or Cursor
- Describe your idea.
- Generate your architecture.
- Get step-by-step prompts.
- Build with your AI tool.
Built for: Lovable, Replit, Cursor, Claude, Bolt.new, Codex
Four steps to a build-ready plan.
Describe your idea
Chat about your app in plain language and answer a few guided questions. Zalcro maps out what needs to be built.
Get step-by-step prompts
Receive a Prompt Pack for Lovable, Bolt, or Replit, or a sequenced ticket backlog for Cursor, Claude Code, or Codex.
View your architecture
See a system diagram showing how the parts of your app connect, before anything is built.
Review your documents
Review the Architecture Design Document, implementation plan, and tickets, then export them to your tools.
You started building. Now you're just fixing.
Your agent goes off-rails, hallucinates features, and breaks things that were working. You fix one bug, break two more. Your credits are draining and you're not building anymore, you're managing chaos. The problem was never the AI. It was the inputs.
Whack-a-bug.
Every fix introduces a new problem. You're not building anymore, you're firefighting.
Credits going up in flames.
Every fix attempt costs you. You're paying to watch the AI guess.
Jenga codebase.
Your code falls apart on the slightest touch.
Your AI wasn't told how to connect the pieces.
Every part worked on its own. But that was the problem. Every part was built in isolation, with no knowledge of what it needed to talk to. At 80%, when everything has to start talking, that's where it falls apart. Zalcro works out how the pieces fit before your first prompt, producing phase-by-phase prompts for Lovable, Bolt, and Replit, or a structured ticket backlog available via MCP. Your AI gets the structure it was missing.
Real Zalcro samples
Zalcro's generated outputs from real app concepts, not mockups
- Homestay (Built with Lovable): An Airbnb-style rental app. Hosts list places, guests book stays, and payments stay sorted.
- Strata (Built with Replit): A habit tracker you share with friends. Daily streaks, gentle accountability, and reminders so you actually keep the routine.
- Chroma (Built with Claude Code): A photo-and-video social feed like Instagram. Post, follow friends, and scroll a personalized timeline.
Want to see more? Lovable · Bolt · Cursor · Claude Code · Browse 6 real samples
Can't I just ask ChatGPT to plan this?
You can, and it will give you a solid plan. ChatGPT is genuinely good at thinking through an idea. Use it for that. What it cannot do is turn that plan into something your AI can build without losing the thread. And it cannot keep your decisions consistent from one conversation to the next. ChatGPT has no memory across sessions.
Zalcro does not replace that thinking. It takes what you have figured out and turns it into something your builder can execute in order, with the connections already worked out.
Go from idea to a build-ready plan in minutes.
Most builders jump straight from idea to coding tool. That's where the bugs come from. Zalcro is the step in between, the one that's always been missing.
Idea
Start with what you want to make, the vibe you're going for, and the problem you want solved.
zalcro
Turn the idea into architecture, a system diagram, and a sequenced build plan, ready for your coding agent or your vibe coding tool.
Build
Hand the plan to your coding agent, paste it into your vibe coding tool, and build with confidence.
Everything you need. Built for how you build.
Vibe Coding
For builders on Lovable, Bolt, Replit, or v0
Skip the doom loops. Zalcro gives you a plan before you start prompting, so your credits go toward building, not fixing.
Prompt Pack
Structured prompts, one per build phase, written specifically for Lovable, Bolt, or Replit. Paste them in sequence and your AI builds with full context, no guessing, no going in circles.
Architecture & Diagram, included
Your product is fully mapped before you start. Every technical decision is locked in and your system is diagrammed end to end. This is what powers your prompts, and what you hand to a developer if you ever need one.
Implementation Plan
A phased roadmap from architecture to execution. Know what to build in each prompt phase and why, before you paste anything into Lovable, Bolt, or Replit.
Agentic
For builders with Claude Code, Cursor, or Codex
Give your coding agent the structure it needs. Zalcro produces a complete, sequenced build plan your agent can execute without going off the rails.
Architecture Design Document
The source of truth for your product. Every decision, every component, every tradeoff, documented before you build.
Architectural Diagram
A diagram of how your product works. Share it with your team, your developers, or your investors.
Implementation Plan
A phased roadmap from architecture to execution. Know what gets built first and why.
Sequenced Ticket Backlog
Every task in the right order, agent-ready and dependency-aware.
Pricing
Starter
$0 / month
- 1 architecture generation per month
- Phase 1 implementation plan
- Phase 1 tickets
- 1st prompt of the Prompt Pack
- Markdown, PDF & Mermaid exports
Builder
$19 / month (or $15 / month billed annually)
Everything in Starter, plus:
- Unlimited architecture generations
- Full implementation plan
- All tickets included
- All prompts included
- DOCX + Draw.io exports
- Google Drive sync
Teams
Coming Soon
Collaborative team workspaces, shared contexts, and workspace governance.
Frequently asked questions
Everything you need to know before you start.
What is Zalcro?
Zalcro is the pre-build planning tool for AI app builders. You describe your app in plain language, answer a few guided questions, and get a build-ready plan: Architecture Design Document, paste-ready prompts for Lovable and Replit, and dependency-ordered tickets for Claude Code and Cursor, before your coding agent starts. Free to start.
Who is Zalcro for?
Zalcro is for anyone building software with AI tools. Vibe coders using Lovable, Bolt, or Replit who keep hitting the wall where the AI loses context and the codebase starts falling apart. Agentic builders using Cursor, Claude Code, or Codex who need dependency-aware tickets and a persistent architecture reference their agent can build against. And anyone who needs to baseline a system design, document architecture decisions, and export structured tasks to Jira, Linear, or ClickUp before the first line of code is written. If you're building with AI and tired of fixing things that were never designed to connect, Zalcro is for you.
What do I get on the Starter tier?
The Starter tier gives you a complete build plan and your first paste-ready prompt. Your project is saved permanently so you can return any time and continue the conversation. To unlock all prompts for every build phase (vibe coders) or the full implementation plan and ticket backlog (agentic builders), you need a Builder subscription.
How is Zalcro different from asking ChatGPT or Claude for a plan?
ChatGPT is genuinely good at thinking through an idea. What it cannot do is turn that plan into something your AI can build without losing the thread. Zalcro takes what you have figured out and turns it into something your builder can execute in order. It produces structured, step-by-step prompts and tickets with verification steps built in, and keeps your decisions consistent from one conversation to the next.
Does this work with Lovable, Bolt, or Replit?
Yes. Zalcro is designed specifically for vibe coding tools like Lovable, Bolt, and Replit. The Vibe Coding workflow produces a Prompt Pack, which is a set of platform-specific paste prompts you can use directly in your tool of choice. Each prompt gives your coding tool the architectural context it needs to build in the right direction from the start.
What is a Prompt Pack?
A Prompt Pack is a set of structured prompts tailored to a specific vibe coding platform (such as Lovable, Bolt, or Replit). Each prompt encodes the architecture decisions from your planning session so you can paste it into your tool at the right moment and have it build with full context. Prompt Packs are generated as part of the Vibe Coding workflow and are available on the Builder tier. Starter tier users receive the first prompt.
What is an Architecture Design Document?
An Architecture Design Document (ADD) is a structured written document that describes the technical architecture of a software product. It covers the technology stack, database design, main system components, key trade-offs considered, and the recommended implementation approach. In Zalcro, every ADD also includes a plain language summary, the requirements that shaped the architecture, implementation risks, and a "what to build first" checklist. The ADD is the first document Zalcro generates and the foundation everything else builds on.
Do I need to be technical to use Zalcro?
No. Zalcro is designed for people who are building software but do not have a technical background. The elicitation conversation is in plain language. You do not need to know what a database is, what hosting means, or how APIs work. Zalcro will explain options in plain terms, give you a recommendation, and flag decisions that matter without overwhelming you with the ones that do not. That said, technical users will also find value in Zalcro. The outputs are structured for coding agents to consume directly, and experienced builders can use the Architecture Design Document as a reference throughout development.
How long does it take to get my documents?
The planning conversation typically takes five to ten minutes depending on how much detail you provide. Architecture Document and diagram generation takes about a minute, depending on the complexity of your project. The Implementation Plan and tickets are generated on demand after you review and approve the architecture, and each phase of tickets generates in about a minute.
What happens to my projects if I downgrade from Builder to Starter?
Your documents are never deleted. If you downgrade, you retain access to your Architecture Design Document and diagram. Access to the full Implementation Plan and tickets beyond Phase 1 is gated to Builder subscribers, but the documents remain stored and are unlocked immediately if you re-subscribe.
Can I use the outputs in my own tools?
Yes. Architecture Design Documents can be exported as Markdown, PDF, or DOCX. Diagrams can be exported as images or Draw.io XML. Tickets can be copied as structured text compatible with Linear, Jira, and ClickUp. DOCX and Draw.io XML export are Builder tier features.
What coding tools does Zalcro work with?
Zalcro produces outputs designed for use with any AI coding environment. The Vibe Coding workflow produces platform-specific prompts for Lovable, Bolt, Replit, and v0. The Agentic workflow produces structured documents designed to be consumed by Claude Code, Cursor, and similar tools. The Architecture Design Document and tickets can be read directly via MCP, or used with any coding agent that accepts text context.
What is spec-driven development for vibe coders?
Spec-driven development means defining your architecture, data model, and integration points before writing a single prompt. Zalcro automates this. It runs a structured elicitation conversation and produces a complete Architecture Design Document, system diagram, and implementation plan so your coding agent has a blueprint instead of guessing.
What data does Zalcro collect and do you sell it?
Zalcro collects your account email, the inputs you provide during your session, and standard usage data like feature activity and billing status. We never sell your data to third parties. For the full picture, read our Privacy Policy.
Is my data secure?
Yes. We protect your information with encryption in transit and at rest, access controls for authorized personnel only, and infrastructure security from our hosting and database providers. Zalcro never stores your password or payment card details; authentication and billing are handled by dedicated providers. We share data only with contracted service providers, not for their own marketing or model training, and session recordings capture UI interactions only, not the contents of your conversations or generated documents. Details are in our Privacy Policy.
Write-ups for builders
- Vibe Coding vs Agentic Building: Which Is Right for You? (Blog, ): Not sure whether to use Lovable or Cursor? Here's how to choose the right approach for your app.
- Before Vibe Coding an Airbnb Clone with Lovable (Blog, ): Most Lovable builds fall apart at 80%. Here's the architectural blueprint I built before writing a single prompt, and why it's the reason Homestay didn't.
- Vibe Coding Hasn't Won. The Industry Is Misreading Its Own Data. (Paper, ): Why the 84% AI adoption rate is a category error, and what the data actually says about prompt-led engineering in 2026.
Can't decide? See how Zalcro compares →
Do the next one differently.
Ten minutes with Zalcro changes how the whole build goes. Free to start, no credit card required.