Convert 100+ Markdown files into beautifully styled PDFs or static HTML with custom CSS, auto-generated table of contents, and corporate templates.
Transforms valid JSON documents into well-formed XML using customizable root-element naming and array-handling rules.
Compares two input texts side-by-side, highlighting inserted, deleted, and changed lines with distinct background colors.
Provides an interactive environment where users can write a regular expression pattern, test it against sample strings, and view real-time match.
Scans and clears browser cookies, localStorage, sessionStorage, and cached data for the current site.
Measures your internet connection’s download speed, upload speed, and latency by transferring real test data to geographically distributed servers.
Computes exact age in years, months, days, hours, minutes, and seconds from a given birth date relative to any target date.
Bulk Markdown to PDF/HTML lets you convert 100+ Markdown files into beautifully styled PDFs or static HTML with custom CSS, auto-generated table of contents, and corporate templates.. Everything runs inside your browser — nothing is uploaded to a server. It works on any device with a modern web browser.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check individual tool descriptions for specifics.
No. All code processing — formatting, minification, conversion, hashing — runs locally in your browser.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. SQL uses sql-formatter, JSON uses native JSON.parse, and other formatters follow widely adopted formatting rules.
Yes. All developer tools work fully offline after the initial page load.