Free online tools

Fast tools for everyday web tasks.

FastUtils is a collection of simple, fast and free online tools for AI prompts, JSON, developers, creators and everyday web tasks.

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Generate, format, compare, parse and choose - without installing anything.

Available tools

Google Flow Prompt Generator

Create structured video prompts for Google Flow and other AI video tools.

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JSON Stringify Tool

Convert formatted JSON into a compact one-line JSON string.

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JSON Diff Tool

Compare two JSON objects and find added, removed and changed values.

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Cookie Parser Tool

Parse HTTP Cookie headers, decode values and copy as JSON.

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Wheel Spinner Tool

Create a random picker wheel and share it with a short URL.

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