UTF-8 Encoder
Inspect UTF-8 bytes and Unicode escapes for your text.
⌸UTF-8 Encoder
All processing happens locallyWhat this tool does
UTF-8 Encoder is a UTF-8 inspector for encoding debugging, the calculation runs entirely in your browser and nothing is uploaded.
Mojibake almost always comes from a mismatch between encoding and decoding. The same bytes read as UTF-8 versus GBK yield different characters, and inspecting the byte sequence pinpoints the cause.
How to use it
- Paste or type your content into the input field at the top, or press the sample button to load demo data.
- Adjust the options below the input, such as output format, separators, letter case or precision.
- Press the main button to run the conversion. Results appear instantly in the output panel without a page reload.
- When the result looks right, use the copy button in the corner, or download it as a local file.
Tips and notes
Clean up stray spaces and line breaks before pasting for more accurate results.
FAQ
Unicode is the character set assigning code points; UTF-8 is one way to write those points as bytes, with most CJK characters taking 3 bytes.
Bytes written in one encoding but read in another get misinterpreted. Checking the byte sequence confirms the original encoding.
Yes. The tool is completely free with no usage limits, and you never need an account or a sign-in.
No. All processing runs locally in your browser, so the input never reaches a server and is never logged or stored.
Yes. The layout is mobile-first, so inputs and buttons stay comfortable on phones and tablets in both orientations.
Yes. A copy button in the output panel puts the result on your clipboard, and you can also download it as a text file.