Browse Tools by Category

Sort text lines alphabetically (A-Z, Z-A), by line length, reverse line order, or shuffle lines randomly.

Generate summary, summary_large_image, and app Twitter card meta tags with live social preview.

Create high-quality barcodes in standard international formats (CODE128, EAN, UPC). Verify data formats and download clean vector SVG copies.

Convert Unix epoch timestamps to human-readable date strings and convert dates across global timezones.

Encode strings into RFC 3986 percent-encoded URL parameters or decode encoded URLs back to human-readable text.

Calculate your US High School and College Grade Point Average (GPA) on standard 4.0 scale with AP/Honors weighting.

Estimate your net take-home pay after federal income taxes, FICA (Social Security & Medicare), and state tax withholdings.

Calculate total sales tax and final price for US state and local tax rates, or reverse-calculate pre-tax amounts.

Quickly calculate server tip percentage and split dinner or restaurant bills equally per person.

Parse User-Agent HTTP header strings to inspect browser name, version, operating system, rendering engine, and device type.

Generate cryptographically secure RFC 4122 compliant UUID v4 strings locally in your browser with custom quantities, case formatting, and instant export.

Generate RFC 4122 compliant version-4 Universally Unique Identifiers (UUIDs) and GUID keys in bulk.

Strip extra spaces, remove leading/trailing whitespace, collapse tabs, and clean unformatted text documents.

Generate XML sitemaps for website URLs with loc, lastmod, changefreq, and priority tags for Search Console.

Parse XML documents and SOAP feeds into clean formatted JSON objects online.