Stop Wasting Tokens.
Start Using Tauq.
The most token-efficient data notation for LLMs. Schema-driven, streaming-ready, and state-of-the-art.
[{"id": 1, "name": "Alice"}, {"id": 2, "name": "Bob"}]!def User id name
1 Alice
2 Bob* 1,000 records: JSON 24,005 → TOON 12,002 → Tauq 11,012
Built for the AI Era
Every feature designed to minimize tokens and maximize developer productivity.
Token-Optimal
44% fewer tokens than JSON overall, 54% on flat data. Space delimiters tokenize better than commas.
True Streaming
StreamingParser iterator API processes records one at a time. No count required unlike other formats.
Schema-Driven
Define data shapes with !def. Switch schemas with !use. Nested types and typed arrays for complex data.
Programmable
Tauq Query for data transformations. Unix pipe model with polyglot support (Python, Rhai, JavaScript).
Production CLI
Full-featured CLI with build, format, minify, exec, and validate commands. Ready for production use.
Language Bindings
Native support for Python, JavaScript, Go, and Rust. Use Tauq in your favorite language.
LSP Support
Language Server Protocol implementation for VS Code, Neovim, and other editors. IntelliSense, syntax highlighting, and more.
Battle-Tested
85+ passing tests. Benchmarked with tiktoken. Production-ready with comprehensive error handling.
Verified Performance
Primary benchmark: 1,000 user records with tiktoken cl100k_base (GPT-4/Claude tokenizer).
* All measurements verified with tiktoken cl100k_base tokenizer
** Cost based on GPT-4o/Claude 3.5 Sonnet pricing ($3 per 1M input tokens)
*** TOON encoded via toon-python library for fair comparison. Tauq v0.1.0
Get Started in Minutes
Install Tauq and start saving tokens immediately. Available for all major languages.
1. Install
# Install via cargo
cargo install tauq
# Or via package managers
pip install tauq # Python
npm install tauq # JavaScript
go get github.com/epistates/tauq # Go2. Use
# Create a config file
cat > config.tqn <<EOF
app_name "MyService"
version "1.0.0"
port 8080
debug true
features [api websockets metrics]
EOF
# Parse to JSON
tauq build config.tqn --prettyPerfect for Every Use Case
AI/LLM Applications
Reduce token costs by up to 54% vs JSON, 11% vs TOON on average. Perfect for prompt engineering, RAG systems, and LLM training data.
Learn more →Data Processing
Stream large datasets efficiently. ETL pipelines, data transformations, and batch processing.
Learn more →Configuration Management
Human-readable configs with schema validation. Replace YAML, JSON, or TOML with Tauq.
Learn more →Multi-Language Support
Use Tauq in your favorite programming language.
Python
Native bindings
JavaScript
Native bindings
Rust
Native bindings
Go
Native bindings
Example: Tabular Data
!def User id name email role
1 Alice "alice@example.com" admin
2 Bob "bob@example.com" user
3 Carol "carol@example.com" userReady to Save Tokens?
Join developers who are already using Tauq to reduce AI costs and improve performance.