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Encode & Decode Guides

Learn common encoding and decoding formats, when to use them, how they transform data, and how to avoid common mistakes.

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Encode & Decode resources

Practical encoding and decoding guides for Base64, URLs, text and developer data formats, with clear examples and Trexmi tools.

Featured guideURL Encoding

URL Encoding Guide

URL Encoding Guide covering percent-encoding, UTF-8, query strings, paths, spaces, plus signs, double encoding, security, and practical code examples.

5 min readUpdated Aug 10, 2026

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URL Encoding Guide showing percent encoding UTF-8 query strings and decoded output

Latest guides

Latest Guides

Focused guides with tested examples and direct links to useful Trexmi tools.

Guide Base64

Base64 Guide

Base64 Guide covering encoding, decoding, padding, UTF-8, Base64URL, APIs, data URLs, common errors, security, and practical examples.

7 min readUpdated Aug 6, 2026

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Base64 Guide showing UTF-8 bytes encoding blocks padding and decoded output

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