Free AI Prompt Optimizer & Token Counter
Audit token counts, compress redundant conversational phrasing, enforce structured XML tags, and project API inference costs across GPT-4o, Claude 3.5, and Gemini with zero cloud proxy leaks.
Token Audit & Financial Impact
Sharper AI Answers, Lower Token Costs
Trim conversational filler to reduce AI token costs by up to 35% while organizing instructions with clean XML structure for consistent AI accuracy.
Cut Polite Filler Without Changing What You Want
Standard LLM prompts are cluttered with conversational pleasantries, polite padding, and redundant qualifiers that waste expensive context window space.
Calibrated against OpenAI cl100k, o200k, and Claude 3.5 BPE tokenizers.
Strictly protects technical constraints, regex strings, and variables.
Organize Instructions with Clear XML Tags
Leading AI research labs demonstrate that wrapping instructions into explicit XML containers drastically eliminates hallucinations and prevents prompt leakage.
Isolates system directives from user content to stop prompt injection.
Standardized tags ensure the LLM reproduces exact desired output schemas.
<rules>Output JSON only</rules>
<task>Inspect token budget</task>
See How Much Money You Save as AI Calls Grow
Every token saved multiplies across every user query. Accurately benchmark monthly dollar savings across Claude 3.5 Sonnet, GPT-4o, and Gemini 1.5 Flash.
Includes official input and output token rates for all major model tiers.
Generate quantitative reports to substantiate prompt engineering ROI.
100% Private on Your Device — No Prompts Sent to Servers
Your proprietary system prompts, trade secret instructions, and confidential customer data never leave your local browser memory.
All word calculations and text cleaning run purely inside your local browser memory.
Download .md files or copy ready-to-use prompts with just one click.
How to Use AI Prompt Optimizer
Fast, intuitive, and 100% client-side. No signups, no watermarks, no server delays.
Input Prompt
Paste your raw instruction, role, or task for Claude, ChatGPT, or Gemini.
Select Framework
Choose optimization rules: Chain-of-Thought, Few-Shot, System Persona, or Markdown XML.
Copy Optimized
Copy structured prompt with estimated token counts and zero prompt leakage.
Your Files Never Touch Our Servers
Rule-based structural optimization runs locally. Your proprietary company prompts and IP are never sent to external AI APIs.
Common Questions About AI Prompt Optimizer
Clear answers about performance, browser compatibility, and our zero-data retention model.
Which AI models does this prompt optimizer support?
It works with all leading LLMs including Claude 3.5 Sonnet, GPT-4o, Google Gemini 1.5 Pro, Llama 3, and DeepSeek.
Does ZeroTool send my prompts to OpenAI or any AI API?
No! The optimizer uses rule-based structural engineering algorithms entirely in your browser. Your confidential business logic and IP are never leaked to external APIs.
What prompt frameworks are included?
Frameworks include Role-Context-Task (RCT), Few-Shot Reasoning, Chain-of-Thought (CoT), Output Formatting Constraints, and Markdown XML fencing.
How does prompt structuring improve AI output quality?
Clear constraints, XML delimiters, and defined evaluation criteria reduce hallucinations by up to 70% and produce consistent JSON/code responses.