Token Counter
Estimate prompt tokens, text size, and context window usage locally in your browser.
Prompt text
Estimate prompt size locally before sending text to an AI model.
Estimated tokens
40
Characters
145
Words
19
Lines
6
Bytes
145
Context used
0.03%
Context window
About 127,960 tokens remain out of 128,000.
This is an estimate. Exact token counts depend on the model and its tokenizer.
Questions
Is the token count exact?
No. This tool gives a local estimate because exact token counts depend on the model and tokenizer.
What context sizes are supported?
You can compare the estimate against common context windows from 8K through 1M tokens.
Does Utilumo upload my input?
No. This tool is designed for local browser processing and does not send your input to a server.
Do I need an account?
No. Utilumo tools are built to work without accounts or sign-in.