Smart Converter
Free online converter for developers — JSON, TypeScript, Zod, YAML, CSV, JSON Schema. No registration.
Input — json
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Output — plaintext
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Free online converter for developers — JSON, TypeScript, Zod, YAML, CSV, JSON Schema. No registration.
Smart Converter is a multi-format data conversion tool built for developers. Instead of searching for several separate online tools, Smart Converter combines seven popular conversions in one place: JSON to TypeScript, JSON to Zod, JSON to CSV, JSON to YAML, CSV to JSON, YAML to JSON and JSON to JSON Schema. The tool runs entirely in the browser — no data leaves your device.
The TypeScript generator automatically detects nested objects and arrays, producing ready-to-use interfaces that follow TypeScript conventions. The Zod generator outputs Zod v3 compatible validators ready for client or server-side use. JSON Schema conversion produces a Draft-07 specification with full type support. CSV and YAML conversions handle nested structures, headers and custom delimiters.
Select a conversion mode from the sidebar (e.g. JSON to TypeScript), paste input data in the left panel — the result appears automatically in the right panel with no button press required. Both panels are powered by Monaco Editor with syntax highlighting. Copy the result with one click or download it as a file with the correct extension (.ts, .yaml, .csv, .json).
All computation happens client-side — no pasted data is sent to any server, which is critical when working with production schemas, API keys or sensitive data structures. No installation, registration or payment required. itcoders.pl Smart Converter is fully free and supports 25 interface languages.
Seven: JSON → TypeScript interfaces, JSON → Zod schema, JSON → CSV, JSON → YAML, CSV → JSON, YAML → JSON, and JSON → JSON Schema (Draft-07).
No — all conversions happen entirely in the browser. No data is ever transmitted to a server.
The generated interfaces use standard TypeScript syntax compatible with TypeScript 4 and later, including TypeScript 5+.
Click the Download button below the output panel — the file is saved locally with the correct extension (.ts, .csv, .yaml or .json).