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TOON

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toon-format/toon · homepage ↗

🎒 Token-Oriented Object Notation (TOON), Compact, human-readable, schema-aware JSON for LLM prompts. Spec, benchmarks, TypeScript SDK.

  • data-format
  • llm
  • serialization
  • tokenization
stars 25k
last activity 19d ago
open issues 7
language TypeScript
license MIT
latest release v2.3.0
momentum · per month since covered + 927/mo (+5%/mo) · + 7k total since PR#22

metrics as of today

star history

Exact curve on star-history.com ↗
PR#22 · 18k25k★ now Oct 2025Jul 2026
  1. PR#22 18k★ 2025-11-26
  2. now 25k★ + 7k since first covered

curve is sampled from GitHub's star history; the dashed stretch is before we first covered it, the solid line since. figures at coverage are the numbers we printed then (approx.), current count is live.

covered in

  • PR#22 2025-11-26 on the radar

    Token efficient JSON alternative for LLM inputs

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