Text Encoding Converter

Convert text-file encodings and line endings locally in your browser

Choose a text or CSV file (your data never leaves this device)

Choose File

Source encoding

Output encoding

Line endings

Add UTF-8 BOM (Excel compatible)

Text preview

Emoji and some special characters cannot be represented in Shift_JIS, EUC-JP, or JIS and may be lost during conversion.

About this tool

The Text Encoding Converter detects and converts text files between UTF-8, Shift_JIS, EUC-JP, and ISO-2022-JP. It can also normalize LF or CRLF line endings and add a UTF-8 BOM for spreadsheet compatibility, all without uploading your file.

Common use cases

Fix garbled Japanese text when moving CSV files between Excel, databases, and web applications.
Convert legacy Shift_JIS or EUC-JP files to UTF-8 before importing them into modern systems.
Normalize line endings when sharing text files between Windows, macOS, and Linux.
Add a UTF-8 BOM so non-ASCII CSV content opens correctly in desktop spreadsheet software.