Convert text encoding
Choose the right text encoding and save a readable TXT file.
- 1Add input
- 2Adjust settings
- 3Get your result
Tool input and files are processed in this browser without being uploaded.
Before you start
Read UTF-8, GB18030/GBK or Big5 text and export UTF-8. Inspect the decoded preview and confirm it before conversion; an incorrect but decodable legacy encoding cannot be detected reliably.
How to use this tool
- Choose the local .txt file. The working copy stays in this browser.
- Review Input encoding, Line endings before selecting “Convert to UTF-8”.
- Review the UTF-8 TXT result, then use the available copy or download controls.
Supported inputs and limits
Plain-text files are limited to 10 MiB each and 30 MiB total; confirm that legacy-encoding previews are readable.
Worked example
Example input
legacy-gb18030.txt
Example options
{
"encoding": "gb18030",
"encodingConfirmed": true
}Example output
你好，世界。 第二行
When something does not work
Keep a copy of the source. For legacy encodings, select the encoding that makes the preview readable, then confirm it before exporting. An unreadable preview is not a successful conversion.
Frequently asked questions
Are my files uploaded?
No. Files and tool input are processed in your browser. Moving around the site can keep a temporary workspace in the same tab. Refreshing or closing the tab clears it, so download results you want to keep.
What should I check in this result?
Read UTF-8, GB18030/GBK or Big5 text and export UTF-8. Inspect the decoded preview and confirm it before conversion; an incorrect but decodable legacy encoding cannot be detected reliably.