Question 1

Does the regex tester support all JavaScript regex features?

Accepted Answer

Yes. The Regex Tester uses your browser's native RegExp engine, so it supports all ES2024 features including lookbehind assertions, named capture groups, the dotAll flag (s), and Unicode property escapes (\p{...}).

Question 2

Can I compare two files side by side?

Accepted Answer

Yes. The Diff Checker lets you paste or type text into two panels and instantly highlights additions, deletions, and modifications. You can switch between line-level, word-level, and character-level comparison modes.

Question 3

Does the Markdown preview support GitHub-Flavored Markdown?

Accepted Answer

The Markdown Preview supports standard CommonMark syntax plus extensions like tables, task lists, and fenced code blocks with syntax highlighting. Output is sanitized with DOMPurify to prevent XSS.

Question 4

How do I generate placeholder text for my designs?

Accepted Answer

The Lorem Ipsum Generator lets you choose the number of paragraphs, sentences, or words to generate. Copy the output with one click and paste it into your mockups, wireframes, or templates.

Question 5

Can I use regex patterns from other languages like Python or Go?

Accepted Answer

Most regex syntax is shared across languages, but there are differences. The tester uses JavaScript's regex engine, so Python-specific features like (?P) named groups should be written as (?) instead. PCRE features like recursive patterns are not supported.

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