mockdata.run

mockdata.run is an editorial mock data lab for generating seeded JSON, CSV, and API-ready sample payloads from a compact blueprint.

What it does

• Writes believable mock records from a simple field:type[:args] schema
• Keeps runs deterministic with a reusable seed
• Exports three views:
  • JSON array
  • CSV
  • API response shape
• Includes curated presets for SaaS, commerce, and creator workflows
• Shows schema mix, payload size, and a live table preview

Blueprint format

Each line follows:

field:type[:args]

Examples:

leadId:id
fullName:name
email:email
plan:enum:Starter|Growth|Scale
monthlySpend:number:49:799
conversionRate:float:1.4:12.8:1
active:boolean
signupDate:date:2024-01-01:2026-12-31
productTags:list:Accessories|Furniture|Lighting

Supported field types

• id
• uuid
• name
• firstName
• lastName
• company
• email
• phone
• city
• country
• url
• avatar
• sentence
• paragraph
• slug
• number:min:max
• float:min:max:fractionDigits
• boolean
• date:from:to
• enum:one|two|three
• list:one|two|three

Stack

• React 19
• Vite 8
• Framer Motion
• Lucide React
• Playwright

Scripts

• npm run dev — start local app
• npm run build — production build
• npm run preview — preview production output
• npm run test:e2e — run Playwright suite
• npm run test:e2e:headed — run Playwright headed

Local setup

npm install
npm run dev

Validation

Current local validation completed:

• Production build passes
• Playwright suite passes (4/4)
• No editor-reported errors in the workspace

Design direction

This project intentionally avoids the same visual language used in the previous tools.

It uses:

• an editorial split-layout
• warm paper tones instead of neon glass
• Fraunces, DM Sans, and IBM Plex Mono
• structured “data lab” panels instead of repeated dashboard cards

Terminal Chai

Built for the Terminal Chai portfolio workflow.