Calculate percentage of a value, percentage difference, increases, and fraction conversions instantly as you type.

Split pages from a PDF file, or merge multiple PDF documents together. Processes 100% locally in your browser.

Reduce PDF file size locally in your browser, or convert PDFs to Word, PowerPoint, Excel and PNG images.

Analyze text length in real-time. Count characters, words, sentences, paragraphs. Convert case and estimate reading times.

Check the HTTP response status codes, redirect destinations, and response headers for multiple URLs in bulk.

Track the complete path a URL takes, identifying redirect chains, intermediate URLs, status codes, and headers.

Convert JSON objects or arrays into formatted CSV format. Upload files, paste text, or fetch from URL to download as CSV.

Create or parse tagged URLs, verify required and optional campaign parameters, and preview GA4 channel classifications.

Create Content Security Policies, combine multiple policies into one, or audit existing CSP headers and URLs for vulnerabilities.