About Tiktokenizer

Tiktokenizer is a free, open-source visualization tool designed to help developers understand how large language models break down text into tokens.

Our Mission

We believe that transparency and understanding are crucial for building effective AI applications. By visualizing the tokenization process, developers can:

  • Optimize prompt engineering strategies
  • Reduce API costs by understanding token usage
  • Compare tokenization across different models
  • Improve application performance and efficiency

Key Features

  • Multi-Model Support

    Support for OpenAI models, Meta's Llama, Qwen, and many other LLMs

  • Real-time Visualization

    Instant feedback on how text is tokenized

  • 100% Free & Open Source

    No signup required, available on GitHub

How It Works

1

Select a Model

Choose from a wide variety of LLMs including GPT, Llama, Qwen, and others.

2

Enter Your Text

Paste or type any text you want to analyze for tokenization patterns.

3

See Results

Get instant visualization of how the model tokenizes your input text.

Built With Modern Technology

Tiktokenizer leverages cutting-edge open-source libraries and technologies:

Next.js - Modern React framework
Tiktoken - OpenAI's tokenizer library
Transformers.js - Hugging Face transformers
TypeScript - Type-safe development

Ready to Explore?

Start visualizing tokenization and optimize your LLM usage today.

Go to Tokenizer