Developer Tools

Zero-install, instant tools that work right in the browser. No npm install, no signup, no app needed. Just type a URL.

Inspect & Debug

Check your IP address, headers, and network details.

/ipMy IP address

Show your public IP address and geolocation.

0.mk/ip68 uses

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/headersHTTP headers

Display the HTTP headers from your request.

0.mk/headers10 uses

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Encode & Decode

Transform text between different formats instantly.

/encodeURL Encode

URL-encode any text.

0.mk/encode/hello world6 uses

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/decodeURL Decode

URL-decode any text.

0.mk/decode/hello%20world6 uses

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/base64Base64

Encode and decode Base64 strings.

0.mk/base64/Hello12 uses

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/jwtJWT Decoder

Decode and inspect JWT tokens.

0.mk/jwt30 uses

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Generate

Generate UUIDs, random strings, and hashes.

/uuidGenerate UUID

Generate a random UUID v4.

0.mk/uuid12 uses

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/randomRandom generator

Generate a random string of a given length.

0.mk/random/3210 uses

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/hashHash generator

Generate MD5, SHA-1, SHA-256 hashes.

0.mk/hash/password12324 uses

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Visual

Explore colors with full conversions.

/colorColor explorer

Explore any color: name, hex, RGB, HSL with full conversions.

0.mk/color/cyan14 uses

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Time

Convert between time formats.

/epochEpoch converter

Convert Unix timestamps to human-readable dates.

0.mk/epoch14 uses

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