Tools
Token Calculator
Estimate how many tokens your text uses, and how much of a model's context window it fills.
Tokenizer:
Tokens
Characters
Words
Lines
Context window usage
/
(%)
⚠ Window almost full. The model may have no room for output.
The count is approximate for every model: it is estimated from the character count (~3.6 chars ≈ 1 token, up to +40% when much of the text is non-ASCII).