CSV to UTF-8 Converter | Fix CSV File Encoding

CSV to UTF-8 converter that detects Windows-1252 and UTF-16 files and re-encodes them as UTF-8, with an optional BOM so Excel shows accents. Free, in-browser. Designed specifically for developers and professionals, this free online converter runs entirely in your browser to process tasks quickly and securely. Enjoy unlimited usage with no data tracking and no registration required.

Also known as: csv to utf-8 converter · convert csv to utf 8 online · csv utf 8 converter · convert csv to utf 8 encoding online · windows-1252 to utf-8 converter · fix csv encoding · csv encoding converter · utf-8 bom csv excel · unicodedecodeerror utf-8 codec can't decode byte 0xe9

csv and spreadsheet tools

encoding and decoding tools

converters

CSV Input

Source encoding

Line endings

Add BOM for Excel

Repair double-encoded text

UTF-8 Output

About CSV to UTF-8 Converter

A CSV to UTF-8 converter re-encodes a spreadsheet export so Python, databases and import forms can read it. Excel on Windows saves CSV files in Windows-1252, where é is the single byte 0xE9, and UTF-8 readers reject that byte. This tool detects the source encoding from the raw bytes, converts the file to UTF-8 and can add the byte order mark Excel needs.

Key Features

Detects UTF-8, UTF-16 and Windows-1252 from the file's bytes and names the first byte that is not valid UTF-8
Converts from Windows-1252, UTF-16, Mac Roman, Windows-1251, Shift_JIS, GB18030 and EUC-KR
Optional UTF-8 byte order mark so Excel opens the file with accented characters intact
Repairs double-encoded text such as JosÃ© and â€™ back to José and a curly apostrophe
Normalizes line endings to LF or CRLF, and lists every non-ASCII character it wrote
Reads the file in your browser with the Encoding API; nothing is uploaded

Use Cases

Fix UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe9 before loading a CSV with pandas
Prepare a customer list with names like José and Zoë for a Shopify, HubSpot or Mailchimp import
Convert an Excel 'Unicode Text' export (UTF-16) into a CSV a PostgreSQL COPY command accepts
Clean up an export where every é became Ã© after one too many round trips through Excel
Add a BOM so a UTF-8 report opens correctly when a colleague double-clicks it in Excel

Supported Formats

CSV

TSV

TXT

Windows-1252

UTF-16 LE/BE

UTF-8 with or without BOM

Related Keywords

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convert csv to utf 8 online

csv utf 8 converter

convert csv to utf 8 encoding online

windows-1252 to utf-8 converter

fix csv encoding

csv encoding converter

utf-8 bom csv excel

unicodedecodeerror utf-8 codec can't decode byte 0xe9

Why does my CSV show Ã© instead of é?

The text was UTF-8, where é is two bytes (C3 A9), and something read it as Windows-1252, which turns those two bytes into Ã and ©. If it was saved again in that state, the damage is in the file itself. Repair double-encoded text reverses it by turning those characters back into bytes and re-reading them as UTF-8, and it leaves alone any characters that do not decode.

Privacy & Security

All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.

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Frequently asked questions

What is CSV to UTF-8 Converter used for?

CSV to UTF-8 converter that detects Windows-1252 and UTF-16 files and re-encodes them as UTF-8, with an optional BOM so Excel shows accents. Free, in-browser.

Is CSV to UTF-8 Converter free to use?

Yes. CSV to UTF-8 Converter is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use CSV to UTF-8 Converter?

No. CSV to UTF-8 Converter works immediately in your browser with no signup, login, or email address required.

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