Instantly validate your XML and auto-format it. Highlights syntax errors, line locations, and keeps your data readable and correct.
Validate and format your HTML code using W3C-style linting rules. Identify broken tags, duplicate attributes, and accessibility issues instantly in your browser.
Analyze your CSS for errors, invalid properties, or rule issues. Helps ensure clean and compliant stylesheets.
Paste your JSON and validate its format. Instantly spot missing commas, brackets, or malformed structures.
Quickly check if an email address matches the correct format using regex. Great for form testing and validation.
Test any URL for standard formatting and protocol use. Verifies domain structure, slashes, and more.
Enter a card number and verify it with Luhn's checksum. Works with Visa, MasterCard, and other common patterns.
Whether you’re dealing with RSS feeds, API responses, config files, or markup-based storage, validating your XML ensures structure and compatibility. This tool instantly checks if your XML is well-formed and valid.
Errors are highlighted along with the line number, helping you quickly resolve malformed tags or nesting issues. Optional auto-formatting improves structure readability.
Tired of bloated tool websites with 10 ads per click? This platform is built for speed, simplicity, and reliability. Whether you're debugging JSON or testing colors, we’ve got your back.
All tools run right in your browser, fast, reliable, and available whenever you need them. No ads, and nothing to install.
Most of my tools work directly in your browser without needing a server. Perfect for fast workflows (even if you’re offline).
Made by someone who actually uses these tools daily. It’s fast, clean, and made with your workflow in mind, not corporate KPIs.