免费SEO和收益工具集
博主·创作者·金融·健康·AI实用工具集
MillionsCode 免费SEO和收益工具集. 15 所有工具免费. 无需登录.
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所有工具免费
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Word & Character Counter
Count words, characters, and sentences in real-time. Essential for SEO optimal length.
Keyword Density Analyzer
Analyze keyword density to check for SEO over-optimization and keyword stuffing.
Reading Time Estimator
Paste your blog post to calculate estimated reading time for average readers.
URL Slug Generator
Convert Korean post titles into SEO-friendly English URL slugs instantly.
RPM Revenue Calculator
Calculate estimated AdSense monthly revenue from page views, RPM, and CTR.
YouTube Revenue Calculator
Calculate YouTube ad revenue from monthly views and RPM. Essential for channel growth planning.
YouTube Take-Home Calculator
Calculate YouTube take-home earnings after Google withholding tax (15%/30%). Korea-US tax treaty supported.
YouTube Thumbnail Extractor
Extract YouTube thumbnails in all resolutions (up to 1280×720) from any video URL or ID.
Savings Interest Calculator
Calculate compound interest for savings and deposits, including Korea youth savings accounts.
Property Tax Calculator
Calculate Korean real estate acquisition tax based on property price, ownership count, and regulated zone.
Currency Converter
Convert major currencies instantly. Perfect for overseas shopping and travel exchange planning.
BMI & Calorie Calculator
Calculate BMI and daily calorie needs (TDEE) from height and weight. For diet and muscle goals.
WebP Image Converter
Convert JPG/PNG to WebP in-browser. 100% client-side processing, no server upload. Multi-file support.
Text-to-Speech
Convert text to speech in-browser. Korean, English, Japanese supported. Adjustable speed and pitch.
Korean Fortune (Saju)
Traditional four pillars destiny calculator based on birth date and time. Full analysis in Korean & English.
Google Search Preview
Preview how your title and description appear in Google search results.
Color Code Converter
Convert between HEX, RGB, HSL color codes and get complementary color suggestions.
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