Developer Playground — Free & Private

TypeScript, JSX, SQL, YAML and TOML converters plus git, npm, semver and env helpers.

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Tools in Developer Playground

TypeScript Playground (Mini): Type TS → see transpiled JS output
HTML to JSX Converter: Convert HTML → React JSX with className/style props
SQL Query Explainer: Paste SQL → plain-English clause-by-clause breakdown
YAML ↔ TOML Converter: Bidirectional YAML and TOML format conversion
Git Command Builder: Pick a git operation → get the correct command + flags
npm Package Search: Search registry → preview metadata, bundle size, deps
Environment Variable Formatter: Paste `.env` → sanitize, sort, generate exports
Timestamp Format Reference: date-fns / Moment / Luxon / strftime tokens + locale preview (merged)
JSON Schema Generator: Infer a JSON Schema (draft 2020-12) from a sample JSON object or from CSV headers and rows