How to Use the CSV Encoding Converter Tool
🔤 Open the CSV Encoding Converter and follow along with this tutorial.
Open Tool →Steps
Step 1: Upload Your CSV
Click Upload File. The tool reads the raw bytes and inspects the first few bytes for encoding signals including BOM markers.
Step 2: Review Encoding Detection
The results show any detected BOM and the suggested source encoding. A UTF-8 BOM, UTF-16 BOM, or absence of BOM is noted.
Step 3: Choose Source Encoding
Select the suspected input encoding from the options: UTF-8, UTF-8 with BOM, ISO-8859-1, or Windows-1252. If unsure, UTF-8 is the most common; try ISO-8859-1 if you see garbled characters with accents.
Step 4: Convert to UTF-8
Click Convert to UTF-8. The tool decodes the file using the selected encoding and re-encodes the output as clean UTF-8 without BOM.
Step 5: Preview the Output
Review the first rows for correctness. If characters still appear garbled, try a different source encoding. The tool shows the first 500 characters of the decoded output.
Step 6: Download the Converted File
Click Export UTF-8 CSV to download the re-encoded file.
Note on limitations: For complex encodings not supported by the browser's TextDecoder, a dedicated command-line tool such as iconv may produce more reliable results.
Privacy reminder: All processing is local. Your file never leaves your browser.