Free LLM Development Tools
A comprehensive suite of free tools for LLM development, optimization, and cost management. Build better AI applications with our professional-grade utilities designed for developers, architects, and product managers.
OpenAI Error Code Explorer
Quickly decode and troubleshoot OpenAI API errors. Get detailed explanations, common causes, and suggested solutions for error codes.
Explore Errors →Prompt Injection Tester
Test your LLM prompts for security vulnerabilities. Get instant risk assessment scores and mitigation strategies.
Test Security →OpenAI Token Counter
Calculate token usage and costs for GPT-4, GPT-3.5, and other OpenAI models. Get instant token estimates and visual breakdowns.
Count Tokens →RAG Cost Estimator
Calculate and optimize costs for your Retrieval Augmented Generation system. Compare providers like OpenAI and Pinecone, estimate embedding and storage costs.
Calculate RAG Costs →Token Cost Calculator
Estimate API costs across different LLM providers. Calculate token usage, compare pricing, and optimize your budget for AI applications.
Calculate Costs →Prompt Health Analyzer
Analyze your prompts for readability, token efficiency, and potential risks. Get optimization suggestions and best practices.
Analyze Prompt →LLM txt Generator
Generate an optimized llms.txt file for your website. Configure LLM crawling behavior and improve content discovery.
Generate File →Content Structure Analyzer
Analyze your content structure for LLM optimization. Get recommendations for better organization and semantic markup.
Analyze Structure →Knowledge Graph Validator
Validate your knowledge graph implementation for LLMs. Ensure proper semantic relationships and data structure.
Validate Graph →LLM Citation Checker
Verify citations and references in your content. Improve trustworthiness and source attribution for LLMs.
Check Citations →HTML to Markdown
Convert HTML content to Markdown format for better LLM processing. Clean and standardize your content structure.
Convert Format →MCP Score Tracker
Monitor your Mean Cumulative Precision score over time. Track and improve LLM citation performance.
Track Score →Want to Learn More?
Explore our comprehensive guides on LLM development and optimization:
- Core Concepts - Understanding LLM systems and architecture
- Implementation Guide - Step-by-step deployment tutorials
- Best Practices - Optimization strategies and tips
- Cost Optimization - Manage and reduce LLM costs