Does Token Estimate (Chars) upload my file or text to Tool-You servers?

No. Token Estimate (Chars) runs in this browser tab. Files stay on the device. Limit note: Text in browser. Heuristic only. Not a real tokenizer.

Should I use Token Estimate (Words) instead of Token Estimate (Chars)?

Use Token Estimate (Chars) when you need Rough tokens from character count. Use Token Estimate (Words) when you need Rough tokens from word count. They share a category (AI) but not the same job.

Token Estimate (Chars)

Rough tokens from character count.

Estimates tokens as ceil(chars / 4). Unlike Token Estimate (Words) this uses characters, not word count × 1.3. Unlike Prompt Stats this focuses on the char heuristic only. Runs locally; no model call.

What Token Estimate (Chars) does

Practical limit for Token Estimate (Chars): Text in browser. Heuristic only. Not a real tokenizer. That is why output can differ from heavy desktop AI software. Read the tool-specific note again: Estimates tokens as ceil(chars / 4). Unlike Token Estimate (Words) this uses characters, not word count × 1.3. Unlike Prompt Stats this focuses on the char heuristic only. Runs locally; no model call.

How to use Token Estimate (Chars)

Keep this tab on Token Estimate (Chars) (/ai/token-estimate-chars). Pasting into the wrong AI tool (for example Token Estimate (Words)) changes the job.
Paste or type the input Token Estimate (Chars) expects. Path hint: ai · token estimate chars. Rough tokens from character count.
Apply the Token Estimate (Chars) action only. Context Window % is a different transform (How full a context window is.). Estimates tokens as ceil(chars / 4). Unlike Token Estimate (Words) this uses characters, not word count × 1.3. Unlike Prompt Stats this focuses on the char heuristic only. Runs locally; no model call.
Copy the output of Token Estimate (Chars) if you need it elsewhere. Size/complexity still follows: Text in browser. Heuristic only. Not a real tokenizer.
If the text job is actually Rough tokens from word count., leave Token Estimate (Chars) and open Token Estimate (Words).

When not to use Token Estimate (Chars)

Skip Token Estimate (Chars) when a neighbor tool matches better — start with Token Estimate (Words) or Context Window % — or when the description already warns the job will fail. In the tool’s own words: Estimates tokens as ceil(chars / 4). Unlike Token Estimate (Words) this uses characters, not word count × 1.3. Unlike Prompt Stats this focuses on the char heuristic only. Runs locally; no model call.

Questions about Token Estimate (Chars)

What does Token Estimate (Chars) do that other AI pages on this site do not?: Estimates tokens as ceil(chars / 4). Unlike Token Estimate (Words) this uses characters, not word count × 1.3. Unlike Prompt Stats this focuses on the char heuristic only. Runs locally; no model call. Short version: Rough tokens from character count.
Does Token Estimate (Chars) upload my file or text to Tool-You servers?: No. Token Estimate (Chars) runs in this browser tab. Files stay on the device. Limit note: Text in browser. Heuristic only. Not a real tokenizer.
Should I use Token Estimate (Words) instead of Token Estimate (Chars)?: Use Token Estimate (Chars) when you need Rough tokens from character count. Use Token Estimate (Words) when you need Rough tokens from word count. They share a category (AI) but not the same job.
What are the limits of Token Estimate (Chars)?: Text in browser. Heuristic only. Not a real tokenizer. Also: Estimates tokens as ceil(chars / 4). Unlike Token Estimate (Words) this uses characters, not word count × 1.3. Unlike Prompt Stats this focuses on the char heuristic only. Runs locally; no model call.