OpenAI Tokenizer
OpenAI
π‘ Pick it for authoritative token counts and visualizations when working primarily with OpenAI models.
OpenAI Tokenizer is a web tool for inspecting how text is split into tokens by OpenAI models. It is aimed at developers...
Pros
- More accurate than a generic counter for supported OpenAI models
- Shows individual token boundaries and token IDs
- Officially maintained alongside OpenAI model tooling
Cons
- Focused primarily on OpenAI tokenizers
- Less useful for Claude, Gemini, and local model workflows
- Not designed as a reusable application API