Feature request: leetspeak translator

[Tichod]

Sometimes, one needs to convert text to leetspeak (several options), or vice versa (one result expected). Both can be tedious with long text for a human. Cf. this news https://www.bleepingcomputer.com/news/security/phishing-campaign-uses-upscom-xss-vuln-to-distribute-malware/

I'd like two operations addressing these conversions between plain text and leetspeak.

I know of a website which proposes those features online: http://www.robertecker.com/hp/research/leet-converter.php?lang=en

Thank you.