</aethereum> / tools / system-prompt-formatter
System Prompt Formatter
Clean up a messy system prompt: trim it, collapse runs of blank lines, and strip trailing whitespace, with live character, word, and estimated token counts. Everything runs in your browser: nothing is uploaded.
characters
0 → 0
words
0 → 0
tokens (est.)
0 → 0
// cleaned prompt
Paste some text above to see the cleaned result.
We trim the text, remove trailing whitespace, and collapse three or more blank lines to one. Token counts use a transparent heuristic (about max(chars / 4, words × 1.3)) and are estimates: a model's real tokenizer will differ.