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Developer Tools

Small utilities that stay out of your way: encode and decode payloads, inspect tokens, convert between formats and generate the identifiers and hashes you need mid-debug.

How these tools run · Developer tools run on the NetworkUtils.org server using Node.js standard libraries — crypto for hashes, Buffer for Base64, url for percent-encoding, and JSON.parse for validation. No third-party API is called and no input leaves the diagnostic pipeline.

Tools in this category

Base64 Encode / Decode

Convert text and payloads to and from Base64.

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JWT Decoder

Inspect header, claims and expiry of a token.

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Hash Generator

SHA-1, SHA-256, SHA-512 and MD5 digests.

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UUID Generator

Version 4 identifiers in bulk.

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URL Encode / Decode

Percent-encode query strings and paths safely.

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JSON Formatter

Validate, pretty-print and minify JSON.

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Editorial note

Maintained by the networkutils.org editorial team. Tool descriptions and methodology on this page reflect the live implementation in the NetworkUtils.org backend. Last updated September 2026.