Prompt Cleaner
Clean prompts, chat transcripts, labels, spacing, and Markdown fences locally before sending text to an AI model.
Prompt cleaner workspace
Clean prompt text, chat labels, spacing, and Markdown fences.
Prompt input
Cleaned prompt
Output
131 chars before100 chars after31 removed5 lines
Files are processed in your browser. No data is uploaded.
Questions
Does Prompt Cleaner use AI?
No. It applies local text cleanup rules for spacing, chat labels, blank lines, and wrapping code fences.
Can this clean copied chat transcripts?
Yes. It can remove common User, Assistant, System, Developer, Human, AI, ChatGPT, and Claude labels while preserving the text body.
Does this change my prompt automatically?
The cleaned output updates locally as you edit options. Review it before copying into another AI tool.
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.