AI & LLM Utilities
Prompt engineering, context calculators, LLM benchmarks, and AI developer utilities.
AI & LLM Tools
Prompt engineering, context calculators, LLM benchmarks, and AI developer utilities.Interact with lightweight in-browser language models running locally in your device memory with zero server calls.
Structure raw prompts with role personas, step-by-step thinking, constraints, and schemas.
Interactively build few-shot input/output examples in XML, Markdown, and JSON schema formats.
Simulate document chunking by character or token count with configurable sliding window overlap.
Generate prompt injection defenses, input delimiters, and safety rules.
Analyze text sentiment, emotional valence, and keyword polarity 100% in browser memory.
Calculate Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, and reading time metrics.
Condense long articles and documents into key bullet points using in-browser sentence scoring.
Estimate BPE token usage, character counts, reading time, and density metrics for LLM prompts.
Generate structured XML/Markdown system instructions, personas, and behavioral guidelines.
Build prompt templates with mustache {{variables}}, live dynamic inputs and instant preview.
Compare text similarity and lexical overlap using word and n-gram vector cosine math.
Pricing, context window limits, and token costs across popular models via OpenRouter data.
Visually define tool schemas, properties, and parameters for OpenAI and Claude function calling.
Why use AI & LLM utilities on debug.tools?
Every tool in this category executes entirely within your browser runtime using the Web Crypto API, Canvas API, or native JavaScript parsers. Whether you are working with proprietary enterprise data, sensitive keys, or private files, your inputs are never transmitted over the internet or logged to any server.
Frequently Asked Questions
Are the utilities in AI & LLM free to use?
Yes, all tools in the AI & LLM category are 100% free with no account creation, subscriptions, or rate limits.
Do tools in AI & LLM upload my files or data to a server?
No. Every calculation, format conversion, and media transformation executes strictly inside your local browser memory using client-side JavaScript and modern Web APIs.
Can I use these AI & LLM tools offline?
Yes. Once the page is loaded in your browser, the tools operate with zero remote API dependencies and work completely offline.