生成ツール
UUID、安全なパスワード、QRコード、テストデータ、トークンの生成
これらの生成ツールは、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。
人気 生成ツール
このカテゴリでよく使われているツール:
- Random User Agent Generator – Generate random browser user agent strings for testing.
- Random UUID Generator – Generate RFC 4122 compliant UUIDs (v4) for unique identifiers.
- QR Code Generator – Create QR codes from text or URLs. Generate and download QR codes instantly.
- Citation Generator – Create simple APA or MLA citations for books and journal articles. Copy-ready bibliography lines. Runs in your browser.
- URL Slug Generator – Convert text to URL-friendly slugs. Create SEO-friendly URLs from titles.
- Random Password Generator – Generate secure random passwords with custom length and character sets.
- Random Color Generator – Generate random colors in HEX, RGB, HSL formats for design and development.
- Random Text Generator – Generate random text, Lorem Ipsum, and placeholder content.
すべて 生成ツール
Random User Agent Generator
Generate random browser user agent strings for testing.
Random UUID Generator
Generate RFC 4122 compliant UUIDs (v4) for unique identifiers.
QR Code Generator
Create QR codes from text or URLs. Generate and download QR codes instantly.
Citation Generator
Create simple APA or MLA citations for books and journal articles. Copy-ready bibliography lines. Runs in your browser.
URL Slug Generator
Convert text to URL-friendly slugs. Create SEO-friendly URLs from titles.
Random Password Generator
Generate secure random passwords with custom length and character sets.
Random Color Generator
Generate random colors in HEX, RGB, HSL formats for design and development.
Random Text Generator
Generate random text, Lorem Ipsum, and placeholder content.
Word Count Counter
Count words, characters, and sentences in text. Useful for writers and content creators.
Wheel Picker
Random wheel picker for fair selection. Spin the wheel to choose randomly.
Days Calculator
Calculate the number of days between two dates. Track durations and deadlines.
Favicon & App Icon Generator
Generate favicon.ico, Apple touch icons, PWA 192x192/512x512 PNGs, and HTML head tags from a single logo image.
Free Invoice & Receipt Generator
Create professional PDF invoices with custom line items, tax calculations, logo, and 1-click print/download.
Random Credit Card Generator
Generate test credit card numbers for development and testing.
Random IBAN Generator
Generate valid IBAN numbers for testing and development.
Random Number Generator
Generate random numbers within a specified range.
Dice Roller
Roll dice: d6, d20, 2d6, custom. For games, D&D, and random decisions.
Coin Flip
Flip a virtual coin. Heads or tails for quick decisions.
Yes or No Picker
Random yes or no. Perfect for indecisive moments.
Percentage Calculator
Calculate X% of Y, what percent is X of Y, and percentage change.
Fantasy Name Generator
Generate fantasy names for elves, dwarves, dragons, and more. For RPG, D&D, and creative writing.
Business Name Generator
Generate creative business names. Adjective + noun combos for startups, brands, and side projects.
Lorem Ipsum Generator
Generate placeholder text for designs. Custom length and paragraphs.
Cron Expression Generator
Build cron expressions with a visual or step-by-step helper.
Fake Name Generator
Generate random fake names for testing and placeholders.
Fake Email Generator
Generate random email addresses for testing.
Random Date Generator
Generate a random date between two dates. For testing, scheduling, or creative writing.
Magic 8 Ball
Ask a question, get a mysterious answer. Classic fortune-telling toy for fun decisions.
Random Emoji Picker
Pick a random emoji. Great for reactions, nicknames, or when you can't decide which emoji to use.
Random Phone Number Generator
Generate random phone numbers for testing. US, EU formats. No real numbers.
Lorem Ipsum Sentences Generator
Generate Lorem Ipsum sentences. Custom count. For placeholder content and design mockups.
Placeholder Image URL Generator
Generate placeholder image URLs (Lorem Picsum, placehold.co). Width, height, blur. For prototypes and mockups.
Fake API Response Generator
Generate realistic JSON mock data. Users, products, posts. For frontend development and API testing.
Secure Token Generator
Generate cryptographically secure random tokens. For API keys, session IDs, CSRF tokens. Hex or Base64.
Email Signature Generator
Create professional HTML email signatures. Name, title, company, contact info, logo, social links. Copy for Gmail, Outlook, Apple Mail.
Random MAC Address Generator
Generate random MAC addresses for testing. XX:XX:XX:XX:XX:XX format. For network testing.
Random Country Code Generator
Generate random 2-letter ISO country codes. US, TR, DE, GB and more. For testing and placeholders.
Barcode Generator
Generate barcodes from text or numbers. Code 128, EAN-13, QR-style. For labels and inventory.
Random Address Generator
Generate random fake addresses for testing. Street, city, state, zip, country. US and international formats.
Lorem Ipsum Paragraphs
Generate Lorem Ipsum paragraphs. Custom paragraph count. For design mockups and placeholder content.
Visual Cron Expression Builder & Explainer
Interactive visual cron expression schedule builder, crontab syntax validator, and human-readable natural language explainer with next run times.
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（11 ページ）。見つけやすさ向上のため更新。
フォーマット・ツール比較
- AES vs RSA Encryption Comparison
- Base64 vs Base62 Comparison
- Bcrypt vs SHA-256 Comparison
- CSV vs TSV Format Comparison
- JSON vs YAML
- JWT vs Session Authentication
- MD5 vs SHA-256 Hash Comparison
- UUID v4 vs UUID v7 Comparison
プラットフォームワークフロー
ステップバイステップのワークフロー
よくある質問
- 生成ツールツールとは何ですか？
- 生成ツールツールは、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。
- 生成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生成ツールツールは、利用制限や回数制限のない完全無料です。
- 生成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。
- 生成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。