A build prompt is a starting point. These three original prototypes let you try the result, inspect the code, and judge the tradeoffs.
Cards, notes, labels, due dates, checklists, three renameable columns, archive/search, and JSON backup with a restore preview.
What is missing: One board. No accounts, device sync, live collaboration, or integrations.
Planning effort: Allow a weekend for a comparable first prototype, plus time for your own changes and testing.
Read the comparison and prompt →
Square, portrait, and landscape layouts; your words, colors, and photo; automatic text fitting; full-resolution PNG export.
What is missing: Fixed layouts and system fonts. No stock library or freeform editor. Photos stay in memory and must be reattached after reload.
Planning effort: Allow one to two weekends if you want more layouts, reliable typography, and image-handling polish.
Read the comparison and prompt →
Channel labels, captions, dates, status, list/calendar views, copy caption, JSON restore, and spreadsheet-safe CSV export.
What is missing: Nothing posts automatically. No social login, analytics, team approvals, or background reminders.
Planning effort: Allow a weekend for a personal planner; actual network publishing would be a separate integration project.
Read the comparison and prompt →Tell us which tool you have in mind. We’ll review what you need and discuss a quote before any paid work. These demos and their source stay free.
Help me replace this →Built and checked on September 28, 2026. We exercised the core workflows, reload persistence, backup/restore, malformed imports, downloads, and mobile layouts in automated Chromium tests. We also checked accessibility and inspected the screenshots. This is prototype validation, not long-term reliability testing or a guarantee that an AI will reproduce the same result from one prompt.
All three run locally with no paid API or required hosting bill on hardware you already own. Your time, coding tools, optional hosting, and future maintenance are separate. The effort ranges above are editorial planning allowances, not measured beginner completion times.
The demos save to this browser only. Export backups; do not use them for passwords, sensitive records, or business-critical work. Downloaded source includes setup instructions and an MIT license.