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JSON to TOON

A compact, token-efficient format for LLMs.

Drop your JSON file here or click to browse

Accepted: .json

Free to try — no signup needed. Limited demo quota applies.

Upload a .json file and Lemino re-encodes it as TOON (Token-Oriented Object Notation), a compact representation that preserves your data while using far fewer tokens.

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Clean output

Only the meaningful content is kept. Boilerplate and noise are filtered out automatically.

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Structure preserved

Headings, lists and tables carry over, so the output stays faithful to the source.

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One simple API

Automate it with a single HTTP call and drop the result straight into your LLM or RAG pipeline.

Do it in code

Same conversion, one API call.

cURL 
# 1. Upload the file to get a URL
FILE_URL=$(curl -s -X POST https://platform.lemino.ai/upload \
  -H "accept: text/plain" \
  -F "[email protected]")

# 2. Convert it to TOON
curl "https://platform.lemino.ai/api/url2md/$FILE_URL"

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Frequently asked questions

What is TOON?

TOON is a compact, token-efficient encoding of structured data designed for LLM context.

Why convert JSON to TOON?

TOON conveys the same data in fewer tokens, reducing prompt size and LLM cost.

Is the conversion lossless?

Yes, the structure and values are preserved — only the encoding changes.

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