AI・LLM関連ツール

OpenAI・Claude用トークン数計算、プロンプト整形ツール

これらのAI・LLM関連ツールは、より迅速かつ効率的な作業を支援します。 このページのすべてのツールはブラウザ内で動作し、インストール不要です。下のツールを選択してご利用ください。

エンジニアやデザイナーの日常業務に役立つツール集。無料、安全、スマートフォンにも完全対応。

このカテゴリでよく使われているツール:

  1. Prompt Token Counter – Count characters, words, and estimate tokens for LLM prompts. Useful for OpenAI, Claude, and other AI APIs.
  2. MCP Tool Schema Generator – Generate Model Context Protocol (MCP) tool definitions. Create name, description, and inputSchema JSON for MCP servers.
  3. llms.txt Generator – Generate llms.txt for your website. Creates AI-readable discovery file with name, summary, contact, and services. Spec 1.1.1 compatible.
  4. Prompt Template Builder – Build prompts with {{variable}} placeholders. Fill in values and preview. For reusable AI prompts.
  5. System Prompt Generator – Generate system prompts for LLMs. Role, task, constraints, output format. For ChatGPT, Claude, etc.
  6. LLM Cost Calculator – Estimate token cost for OpenAI GPT-4, Claude, and other LLM APIs. Input vs output tokens, pricing per model.
  7. Text Chunk Splitter – Split text into chunks for RAG, embeddings, or context windows. By tokens, characters, or sentences. Overlap support.

すべて AI・LLM関連ツール

Prompt Token Counter

Count characters, words, and estimate tokens for LLM prompts. Useful for OpenAI, Claude, and other AI APIs.

MCP Tool Schema Generator

Generate Model Context Protocol (MCP) tool definitions. Create name, description, and inputSchema JSON for MCP servers.

llms.txt Generator

Generate llms.txt for your website. Creates AI-readable discovery file with name, summary, contact, and services. Spec 1.1.1 compatible.

Prompt Template Builder

Build prompts with {{variable}} placeholders. Fill in values and preview. For reusable AI prompts.

System Prompt Generator

Generate system prompts for LLMs. Role, task, constraints, output format. For ChatGPT, Claude, etc.

LLM Cost Calculator

Estimate token cost for OpenAI GPT-4, Claude, and other LLM APIs. Input vs output tokens, pricing per model.

Text Chunk Splitter

Split text into chunks for RAG, embeddings, or context windows. By tokens, characters, or sentences. Overlap support.

LLM JSON Extractor

Extract JSON from LLM responses. Parse code blocks and clean malformed JSON from AI output.

MCP Config Formatter

Format and validate MCP server configuration (mcp.json). Pretty-print and check structure for Cursor, Claude, and other MCP clients.

Few-Shot Prompt Builder

Build few-shot prompts with input-output examples. Structure examples for in-context learning.

Prompt Variable Extractor

Extract {{variables}} or {placeholders} from prompt templates. List placeholders for documentation.

LLM Token Cost Estimator & Model Pricing Comparison

Compare input/output token API costs across OpenAI GPT-4o, Anthropic Claude 3.5, and Google Gemini models.

Structured System Prompt Generator

Build structured AI system prompts with Role, Context, Task, Constraints, and Output Format fields.

API Response Formatter

Format and beautify API responses. JSON, XML. Detect and fix common malformed output from APIs.

AI Image Prompt Builder

Build prompts for Midjourney, DALL-E, and Stable Diffusion. Select style, lighting, mood, camera angle. Copy-ready prompt.

AI Text Detector

Detect AI-generated text with heuristic analysis. Sentence uniformity, vocabulary diversity, AI phrase patterns. No API needed.

AI Model Comparison

Compare AI models: GPT-4o, Claude, Gemini, Llama, Mistral. Context window, pricing, features. Interactive table.

README Generator

Generate GitHub README.md from project info. Badges, install steps, usage, license. Markdown output.

Custom GPT Instructions Builder

Build system instructions for OpenAI Custom GPTs. Role, tone, rules, output format. Copy-ready instructions.

AI Tone Analyzer

Analyze text tone and writing style. Formality, sentiment, readability scores. Flesch-Kincaid and Gunning Fog index.

AI Prompt Scorer

Rate your prompt quality 0-100. Clarity, specificity, structure, context analysis. Get improvement suggestions.

Commit Message Generator

Generate Conventional Commits messages. Type, scope, description, breaking changes. feat, fix, refactor formats.

Changelog Generator

Generate CHANGELOG.md entries. Added, Changed, Fixed, Removed sections. Keep a Changelog format.

Fine-tuning Data Formatter

Format training data for OpenAI fine-tuning. CSV or JSON to JSONL. System/User/Assistant roles. Validate and preview.

AI Chat Export Formatter

Convert ChatGPT JSON exports to readable Markdown. Format AI conversations for sharing and documentation.

AI Persona Generator

Generate detailed AI personas and character prompts. Profession, personality, tone, expertise. For Custom GPTs and roleplay.

Prompt Injection Scanner

Scan text for prompt injection patterns. Detect instruction override, role hijack, system prompt extraction attempts.

Embeddings Cost Calculator

Calculate embedding API costs. OpenAI, Cohere, Voyage models. Token count, dimensions, storage estimates.

AI Prompt Chain Builder

Build multi-step prompt workflows. Chain prompts with variable passing between steps. For complex AI tasks.

サイズ仕様、ワークフロー&ガイド

公式サイズとブラウザベースの準備ワークフロー(2 ページ)。見つけやすさ向上のため更新。

ステップバイステップのワークフロー

プラットフォームワークフロー

よくある質問

AI・LLM関連ツールツールとは何ですか?
AI・LLM関連ツールツールは、ブラウザ内で完結して動作する無料のオンライン便利ツールです。作業効率を向上させ、お使いの端末上でプライバシーを保ちながら処理を行います。
AI・LLM関連ツールツールは無料ですか?
はい。everytoolsで提供されるすべてのAI・LLM関連ツールツールは、利用制限や回数制限のない完全無料です。
AI・LLM関連ツールツールの使い方は?
使いたいツールを開き、入力欄にデータを貼り付けるか入力するだけで、結果がリアルタイムに表示されます。「コピー」ボタンでクリップボードに素早く保存できます。
AI・LLM関連ツールツールを使うために何かインストールが必要ですか?
いいえ。お使いのPCやスマートフォンのブラウザだけでそのままご利用いただけます。