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Optimize & Repair · browser workspace

Fix CSV Encoding - Convert to UTF-8

Fix CSV file encoding issues. Convert to UTF-8. Fix garbled characters. Preview before download. processed locally in your browser.

Quick start

Built for fix weird symbols (e.g., ã© -> é).

Everything runs in your browser, so you can test the workflow with sample data when available before using production files.

Output: A new file or report produced locally in your browser.

  1. 1Choose a supported file or use sample data when available.
  2. 2Set the options shown for this workflow.
  3. 3Process the file locally, inspect the result, and download a new copy.
Preparing your private workspace…

How to Fix Encoding

  1. 1Upload your CSV file with encoding issues
  2. 2Tool detects encoding and converts to UTF-8
  3. 3Preview and download fixed file

Why Use This Tool?

  • ✓Auto-Detection - Recognizes common encodings
  • ✓Preview Available - See before/after comparison
  • ✓Universal UTF-8 - Works everywhere
  • ✓Fix Garbled Text - Correct special characters
  • ✓International Support - Handles all languages

Frequently Asked Questions

Why do I see garbled characters?

This happens when a file is opened with the wrong encoding. Characters like é, ñ, 中 may appear as ??? or gibberish.

What is UTF-8?

UTF-8 is the universal character encoding standard. It supports all languages and special characters, and is recommended for all modern files.

Will this fix my data?

If the original encoding is detected correctly, yes! If characters are already corrupted in the source file, they cannot be recovered.

Problems this tool can help diagnose

Use the symptom-specific walkthrough before changing a production file.

Fix Garbled Characters in a CSV File

Repair mojibake, black diamonds, and broken accented characters by converting the CSV to a known text encoding.

Fix Shopify CSV Encoding and Illegal Quoting Errors

Convert a Shopify product or customer CSV to UTF-8, distinguish encoding damage from malformed quotes, and validate the file before importing it.

Fix Salesforce Data Loader CSV Encoding Errors

Prepare a UTF-8 CSV for Salesforce Data Loader and remove a UTF-8 byte-order mark when it causes an invalid-format error.

Fix Special Characters in a HubSpot Import CSV

Convert a HubSpot import file to UTF-8 and verify its headers, identifiers and character data before uploading it.