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Change CSV text encoding

Decode CSV with a chosen source encoding and export UTF-8, UTF-8 with BOM or UTF-16 LE.

  1. 1Add files
  2. 2Options
  3. 3Convert
  4. 4Save
No installation · Processed in your browser

Preparing the converter…

Add your CSV, TXT filesDrop files here or choose them from your device.Drop here to add your files. Choose CSV, TXT files CSV, TXTCSVNo fixed byte cap · browser memory and format limits apply
Choose a file to check its format and size.

Related tools

Convert CSV to JSONParse a CSV header and rows into JSON records, choosing the input encoding and delimiter.Convert JSON to CSVExport an array of JSON objects as CSV rows, with an option to flatten nested fields.Convert TSV to CSVRead tab-separated records with the selected encoding and write comma-separated CSV.Convert CSV to TSVChange CSV records to a tab-separated file while parsing quoted CSV fields.Convert XML to JSONParse safe XML and represent its elements and values as a JSON structure.

Supported formats and settings

Input formats
CSV, TXT
Output formats
CSV
Per-file limit
Current device memory
Total selected-file limit
Estimated by file count and format
Number of selectable files
1–1

Recommended input total: 8 MiB on mobile / 32 MiB on desktop. Low memory can reduce the effective limit.

Your files are not uploaded to a conversion server. A new result is created in your browser.

How to use this tool

  1. Choose files in CSV, TXT format. Maximum files per batch: 1.
  2. Review Source encoding, Output encoding, then start processing.
  3. Download the CSV result and check its content and quality.

What this tool does

  • Decode CSV with a chosen source encoding and export UTF-8, UTF-8 with BOM or UTF-16 LE.
  • Read CSV, TXT input and save the CSV result as a new file.
  • Available settings: Source encoding, Output encoding.

Limitations

  • The source encoding must be correct. This does not repair text that was already corrupted before upload.

Frequently asked questions

Change CSV text encoding — What should I check before using this tool?

The source encoding must be correct. This does not repair text that was already corrupted before upload.

Which files can I choose?

Choose files in CSV, TXT format. Maximum files per batch: 1.

How can I adjust the result?

Source encoding, Output encoding.

Understand the formats

CSV

CSV stores rows of delimited text. Quoted fields can contain commas and line breaks; encoding and header conventions vary between applications.

Use CSV for exchanging a simple table. Select the correct character encoding and inspect the column names before converting to JSON.

Leading zeros, dates and long identifiers can be changed by spreadsheet software when opened. Coverton neutralizes formula-like cells in supported table exports; encoding-only conversion preserves the original text.

When is this useful?

Change output encoding when the source CSV encoding is known. This cannot restore already-corrupted characters.

Input and result example

known source encoding → UTF-8/BOM/UTF-16 LE CSV

Examples illustrate the workflow; actual size, support and recognition depend on the source and settings.

Related guides

Check CSV and Excel data before importFile conversion and error basics