TOON is the token-optimized serialization format built for the AI era. Cleaner than JSON. Lighter on tokens. Ready for production.
JSON was built for the web. TOON is built for LLMs. By removing redundant syntax, we save you money on every API call.
Average savings across standard datasets
Lossless conversion between JSON and TOON. Perfect fidelity.
Milliseconds to process large datasets. Zero latency overhead.
Client-side processing. Your data never leaves your browser.
TOONer provides a smooth interface for bi-directional data conversion: easily transforming JSON data to TOON and vice-versa.
Access typical JSON objects under the /samples directory, ready to be used directly in the converter.
Upgrade to Pro for exclusive benefits, including:
We are actively developing new features to establish TOONer as the leading platform for utilizing TOON in production environments. If you have suggestions for improvement, please share your ideas. Pro Tier subscribers receive 100x voting power on new feature requests.
Create & vote on feedback here.