All-in-One Tools Collection

A broad collection of online tools for development, AI, design, and productivity tasks.

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Encode and decode text to/from Base32 format with multiple variants

Check if a string is an Ethereum address. Does not validate address checksums.

Calculate fuel costs based on distance, fuel efficiency, and gas price

Generate UUIDs (v1, v4, v5)

Calculate calories burned during various activities

Convert IPv4 addresses to IPv6 addresses. Supports IPv4-mapped and IPv4-compatible formats.

Calculate waist to hip ratio and assess health risks

Validate email addresses and check deliverability

Encrypt and decrypt text using RC4 stream cipher with a key

Generate placeholder text content

Encode and decode text using Atbash substitution cipher (reverses the alphabet)

Calculate electricity costs based on power consumption and usage time