Retune your JSON.
Keep your prompts light.

reTOONer takes JSON configs and turns them into a compact, TOON-style text block that keeps structure but drops punctuation noise.

Config-first view for agent prompts Lossless conversion logic on JSON Free to use while the name spreads

reTOON preview

JSON → TOON-style snapshot

JSON config

{
  "agent": {
    "name": "SupportAgent",
    "role": "Helps users with simple issues.",
    "constraints": [
      "Stay safe.",
      "No private data.",
      "Ask one question at a time."
    ]
  }
}

Original JSON

TOON-style output

agent:
  name: SupportAgent
  role: Helps users with simple issues.
  constraints[3]:
    Stay safe.
    No private data.
    Ask one question at a time.

Fewer brackets, same structure Ready to paste into prompts

Playground

JSON → TOON-style converter

Free, browser-side. No accounts, no paywall. Paste, convert, copy.

JSON input

Source config

Paste any valid JSON. Objects, arrays, configs, tool schemas.

agent configs tool schemas RAG settings

TOON-style output

Prompt-ready text

Drop this into system prompts, tools, or docs.

compact human-readable LLM-friendly

JSON – chars, – est. tokens TOON – chars, – est. tokens

Δ size –% vs JSON (lower is smaller)

Retune your JSON. Keep your prompts light.

JSON → TOON-style converter

Retune your JSON.
Keep your prompts light.