Tiktoken Online Tool

Free online version of OpenAI's tiktoken tokenizer

No installation required - Use tiktoken directly in your browser

🚀No Setup Required

Skip Python installation and package management. Use tiktoken online instantly without any configuration.

âš¡Real-time Results

See token counts and visualization instantly as you type. Perfect for testing and optimization.

🎯All Tiktoken Encodings

Supports cl100k_base (GPT-4), p50k_base, r50k_base, and all OpenAI encoding formats.

📊Visual Tokenization

See exactly how tiktoken breaks down your text into tokens with color-coded visualization.

What is Tiktoken?

Tiktoken is OpenAI's official tokenizer library used by GPT-4, GPT-3.5-turbo, and other OpenAI models. It efficiently encodes text into tokens that the models can understand.

Our online tiktoken tool provides the same functionality as the Python library, but directly in your browser:

# Python tiktoken equivalent:
import tiktoken
enc = tiktoken.get_encoding("cl100k_base")
tokens = enc.encode("Your text here")
# Now available online! →

Tiktoken Encoding Formats

cl100k_base: Used by GPT-4, GPT-3.5-turbo, text-embedding-ada-002
p50k_base: Used by Code-Cushman, text-davinci-002, text-davinci-003
r50k_base (GPT-2): Used by GPT-2 models
Launch Tiktoken Online Tool →

Why Use Tiktoken Online?

  • ✓Calculate API costs before making requests
  • ✓Optimize prompts to fit within context limits
  • ✓Debug tokenization issues in your applications
  • ✓Compare different encodings side by side
  • ✓No Python installation or dependencies needed

Ready to use tiktoken online? Choose your preferred option:

Launch Tiktoken Online Tool →Learn About Tokenization