All-in-One Tools Collection

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

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Calculate pregnancy due date based on last period or conception date

Calculate optimal macro nutrient distribution based on goals and calories

Shuffle a standard deck of playing cards

Encode and decode data to/from Base64 format with URL-safe options

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