Developer Tools

Formatters, encoders, decoders, and testers for everyday development tasks.

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Encoder

Free base64 encode decode tool

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JSON/XML Prettifier

Free JSON and XML formatting/prettifying tool

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JWT Decoder

Decode a JSON Web Token's header and payload

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Regex Tester

Test regular expressions with live match highlighting

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Payload Studio

Convert Excel/CSV to JSON, or visually map columns to a nested JSON sample or schema

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UUID Generator

Generate random UUID v4 values, one or in bulk

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Cron Expression Builder

Build, validate, and decode cron expressions with plain-English descriptions and upcoming run times

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