UTF-8 encoder decoder

Convert text and UTF-8 bytes.

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UTF-8 encoder decoder processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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Updated 2026-09-26

UTF-8 encoder decoder explained

UTF-8 encoder decoder converts Unicode text using UTF-8. Each byte is shown in decimal. Decoding rejects incomplete or invalid byte sequences instead of replacing them with a question mark.

Next: Binary translator

A worked example

The text é becomes 195 169. Converting those bytes back produces the same character.

Before you use the result

This is text encoding, not encryption. Decoding expects UTF-8, not Windows-1252 or an arbitrary binary file. Unpaired UTF-16 surrogates are rejected.

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ToolOctopus. “UTF-8 encoder decoder.” Updated 2026-09-26. https://tooloctopus.com/utf-8-encoder-decoder.

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