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Calculate any percentage instantly: what is X% of Y, percentage change, and more. Four modes, free and instant.

Convert between length, weight, temperature, volume, speed, and area units instantly. Free all-in-one unit converter.

Calculate your exact age in years, months, and days from your date of birth. Includes birthday countdown.

Calculate monthly EMI, total interest, and total payment for any loan. Free online calculator, instant results.

Create a proper robots.txt file for your website instantly. Block bots, set disallow rules, add sitemap URL.

Encode special characters in URLs or decode percent-encoded URLs instantly. Free online tool for developers.

Generate complete SEO meta tags (title, description, Open Graph, Twitter Card) instantly. Free online tool, no sign-up.

Pick any color and instantly get HEX, RGB, and HSL values. Free online color picker for designers and developers.

Resize and compress images for web instantly. Lock aspect ratio, set quality, download – all in your browser.

Find and replace any word or phrase in text instantly. Supports regex and case-insensitive matching. Free online tool.