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Goodfolk Toolbox

Developer Utilities

Free developer tools for JSON, URLs, Base64, timestamps, IDs, regex, JWTs, HTML entities, and API cleanup.

Explore free developer utilities for JSON formatting, URL encoding, Base64 conversion, UUID generation, timestamps, HTML entities, regex testing, JWT decoding, API responses, and CSS units. These tools are made for quick coding, debugging, formatting, and everyday development tasks. Goodfolk Developer Utilities are lightweight browser-based helpers for developers, students, support analysts, and anyone working with web data or code snippets. No signup required.

JSON Formatter

Format, validate, and minify JSON with copy-ready output.

URL Encoder / Decoder

Encode and decode URLs, query strings, and text for safe use in web addresses.

Base64 Encoder / Decoder

Encode plain text to Base64 and decode Base64 back to readable text.

UUID Generator

Generate one or more random UUIDs and copy them for testing, mock data, or development work.

Timestamp Converter

Convert Unix timestamps to readable dates and convert dates back to Unix time.

HTML Entity Encoder / Decoder

Encode HTML special characters into entities and decode entities back to readable text.

Regex Tester

Test regular expressions against sample text and review matches, groups, and flags.

JWT Decoder

Decode JWT headers and payloads locally in your browser for quick inspection.

API Response Formatter

Format API response JSON, inspect status details, and copy clean output for debugging.

CSS Unit Converter

Convert common CSS units like px, rem, em, vw, and vh for front-end development.