Web Utilities

Free online tools for email validation, URL parsing, color conversion (HEX/RGB/HSL), and Unix timestamp conversion. Bulk processing, instant results. Works offline.

About Web Utilities

Web development involves constant interaction with emails, URLs, colors, and timestamps, and each has its own parsing quirks. An email that looks valid might use a disposable domain; a URL might have double-encoded query parameters; a hex color might need conversion to HSL for CSS custom properties. These utilities handle the details: bulk email validation with disposable-domain detection, URL parsing with query string building, color conversion across HEX/RGB/HSL/CMYK, and bidirectional Unix timestamp conversion with timezone awareness. All processing is local and instant.

Frequently Asked Questions

Can I validate emails in bulk?
Yes. The Email Validator accepts a list of email addresses (one per line or extracted from pasted text). It checks RFC 5322 syntax, detects disposable domains, and removes duplicates. Results can be copied as a clean list.
How does the URL parser handle encoded characters?
The URL Parser fully decodes percent-encoded characters in the path and query string for readability. It also breaks down query parameters into a key-value table. You can build new URLs by editing parameters directly.
Which color formats are supported?
The Color Converter supports HEX (3, 6, and 8-digit), RGB, HSL, and CMYK. Enter any format and all others are computed instantly. It also shows a visual preview and common CSS named colors.
What is a Unix timestamp?
A Unix timestamp (also called Epoch time) is the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC. It is widely used in APIs, databases, and log files because it is timezone-independent and easy to compare.
Can I convert timestamps to different timezones?
Yes. The Timestamp Converter shows the date in your local timezone by default and lets you view it in UTC. The live clock displays the current Unix timestamp in both seconds and milliseconds.