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Punycode converter

Convert IDN domains to ASCII punycode locally.

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These checks complement the result above. The current domain/URL is carried forward when the next tool accepts it.

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File download time

Estimate transfer time. Enter a size such as 150MB or 2GB.

IP / CIDR calculator

Calculate network, broadcast and hosts from CIDR like 10.0.0.0/24.

chmod calculator

Convert Unix permission bits in the browser.

Case converter

Change letter case locally in the browser.

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