Tool library
All 33 free XSular tools — open any utility directly or read the matching tutorial for step-by-step explanations.
Blog
Practical articles on writing, development, design, and productivity — each tied to a free XSular tool you can use right away.
Learn the differences between HEX, RGB, HSL, and CMYK color formats. Convert between them instantly and generate harmonious color palettes for web design.
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Learn why minifying HTML, CSS, and JavaScript files dramatically improves page load speed and SEO. Minify or beautify code instantly in your browser.
Learn what an IP address reveals about a device, how geolocation works, and how to look up the location, ISP, and timezone of any IPv4 or IPv6 address.
Learn Markdown syntax from scratch and convert your documents to clean, semantic HTML instantly with a live preview and GitHub Flavored Markdown support.
Learn which meta tags are essential for SEO, Open Graph social sharing, and Twitter Cards. Generate all required tags with live Google and social media previews.
Learn how robots.txt controls search engine crawling. Create valid allow and disallow rules for Googlebot and other crawlers with a visual builder.
Learn how diff tools work, why they are essential for code review, and how to compare two text blocks line-by-line with color-coded highlighting.
Understand how Unix timestamps work, why they matter for developers, and how to convert between epoch time and human-readable dates instantly.
Learn how to properly format, indent, and validate XML documents. Fix parsing errors and transform minified XML into readable, hierarchical structures.
Calculate your exact age in years, months, and days from your date of birth. Discover your zodiac sign, Chinese zodiac animal, and next birthday countdown.
Convert between 150+ world currencies using live mid-market exchange rates. Understand exchange rate mechanics and avoid hidden conversion fees.
Learn when and how to spell out numbers as words for checks, legal documents, and formal writing. Convert numbers to words in 30+ languages instantly.
