Useful
tools
Everything runs right here in your browser. What you paste never leaves this page — only DNS lookups go to Google Public DNS, Whois asks the domain or IP registry, My IP asks ipwho.is, and the calculator fetches exchange rates.
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Text tools
Change case — camelCase, snake_case, kebab-case and more, line by line — make a URL slug (Cyrillic is transliterated), count characters, words, bytes and roughly how many LLM tokens, sort lines and remove duplicates. Changes apply in place; Undo steps back.
Case
Lines