App Overview

Toon json xml yaml PRO icon

Toon json xml yaml PRO

Francisco Espejo · Developer Tools

Stop wrestling with configuration files

$0.99 · In-app purchases

PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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Combine features and design from your favorite apps.

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What's included15 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Toon json xml yaml PRO: map the core Developer Tools workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Competitive pricing with generous free tier

Assumption to check: Expensive subscription

Validate with people who use this workflow before building.

Hypothesis 2

Focus on most-requested features first

Assumption to check: Missing features

Validate with people who use this workflow before building.

Hypothesis 3

Optimize for 60fps, fast load times

Assumption to check: Poor performance

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Stop wrestling with configuration files. Toon Converter is the fast, powerful, and elegant utility designed for developers, sysadmins, and IT professionals who need to convert data formats on the go. Pay once, get all features forever. No ads, no subscriptions, no in-app purchases. Built natively for iOS and iPadOS, this is a professional tool that respects your time and privacy. All conversions happen securely on your device—nothing is ever uploaded to a server. Toon Converter is your all-in-one solution for data transformation. POWERFUL FEATURES INCLUDED: CONVERT EVERYTHING Instantly convert between all major data and configuration formats: JSON (JavaScript Object Notation) TOON (The Minimalist Format) XML (Extensible Markup Language) YAML (YAML Ain't Markup Language) TOML (Tom's Obvious, Minimal Language) .properties (Java Properties Files) POWERFUL BATCH CONVERSION Save hours of manual work. Select an entire folder (e.g., from an iCloud Drive project), choose your input and output formats, and Toon Converter will process every file, saving the converted versions to a new directory. Perfect for project migrations. FULL SHORTCUTS INTEGRATION Automate your workflow. Use our built-in "Convert Text" and "Convert Files" actions in the Apple Shortcuts app. Create powerful custom flows, like "Get Clipboard -> Convert to YAML -> Save to 'My Snippets'". ADVANCED FORMATTING CONTROL Take full control of your output. Choose between "Pretty Print" (indented, human-readable) or "Minified" (compact, single-line) for formats like JSON and XML. You can also alphabetize keys for clean, standardized output. PROFESSIONAL & CLEAN UX A beautiful, distraction-free interface that just works. Full Files app and Clipboard integration. Robust syntax highlighting for all formats. Premium themes included (Dracula, Solarized, Monokai, and more). Native Light & Dark Mode support. PRIVATE & SECURE This is a tool that respects you. No tracking, no analytics, no servers. All processing stays 100% on your device. Whether you're debugging an API response, migrating a project's configuration, or just need a powerful data utility in your pocket, Toon Converter is the all-in-one tool you've been waiting for.

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
Supabase
RevenueCat
BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.