Convert Any Format to TOONSave 30-60% on Tokens
Free online tools to convert between JSON, XML, CSV, YAML and TOON format. Reduce your LLM token usage and API costs with this efficient data serialization format.
30-60%
Token Savings
100%
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Free
Forever
All Available Converters
Convert from any format to TOON and back with full bidirectional support
XML ↔ TOON
Transform XML data to TOON format and back with full structure preservation.
Why Choose Toon over other formats?
Discover the benefits of using TOON format for your LLM applications
30-60% Smaller than JSON
TOON format removes JSON's verbose syntax like repeated quotes, braces, and colons, reducing token count significantly.
More Compact than XML
Unlike XML's heavy opening/closing tags, TOON uses minimal delimiters making it far more token-efficient.
Better Structure than CSV
CSV lacks hierarchy and type information. TOON maintains data structure while being more compact.
Faster Processing than YAML
YAML's indentation-based syntax is harder to parse. TOON offers similar readability with simpler parsing.
LLM-Optimized Format
Designed specifically for LLM contexts with clean syntax that's easy for both humans and AI to understand.
Lower API Costs
Fewer tokens mean lower costs for GPT-4, Claude, and other LLM APIs. Save money on every request.
See the Difference
Real-world example showing token savings
JSON Format
257 tokens
{
"users": [
{
"id": 1,
"name": "Alice",
"role": "admin",
"salary": 75000
},
{
"id": 2,
"name": "Bob",
"role": "user",
"salary": 65000
},
{
"id": 3,
"name": "Charlie",
"role": "user",
"salary": 70000
}
]
}TOON Format
166 tokens (35% reduction!)
users[3]{id,name,role,salary}:
1,Alice,admin,75000
2,Bob,user,65000
3,Charlie,user,70000Ready to Save Tokens?
Start converting your data to TOON format now and reduce your LLM API costs.