Upload your file with encoding issues and fix 200+ types of mojibake across 15 languages. Free, no sign up required. Your data never leaves your browser.
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Supports CSV, XLSX, XLS, ODS
Mojibake (文字化け) is the garbled text you see when a file's character encoding is misinterpreted. It happens when UTF-8 text is read as Latin-1, or vice versa, turning readable characters into gibberish.
For example, the name "José" becomes José, or the euro sign "€" becomes €. This commonly happens when exporting from databases, migrating between systems, or opening UTF-8 CSV files in Excel.
This tool detects these encoding errors automatically and fixes them. Just upload your CSV or Excel file, scan for issues, preview the changes, and download the clean version.
Fix encoding issues in seconds, not hours of manual find-and-replace.
Your data never leaves your browser. All processing happens locally — no uploads, no servers, complete privacy.
Spanish, French, German, Polish, Czech, Greek, Scandinavian, Portuguese, and more — 200+ encoding patterns.
Scan thousands of rows in seconds. See progress in real time and preview every change before downloading.
Upload CSV, XLSX, XLS, or ODS files. Download as CSV (with optional UTF-8 BOM) or XLSX.
From garbled mess to clean, properly encoded data in minutes
Drag and drop or browse to upload your CSV or Excel file containing garbled characters.
Select which encoding categories to check, then scan your data. See exactly which cells have issues and what will change.
Review the before/after preview, then download your cleaned file in CSV or XLSX format.
Encoding issues happen everywhere — here's where this tool helps most
Moving data between systems with different encodings? Fix garbled characters that appear when migrating from legacy databases.
Working with international data that lost its encoding? Restore accented characters across European and other languages.
CRM contact exports often garble names and addresses. Fix them before mail merges or campaigns.
Scraped data frequently has encoding issues from mixed charsets. Clean it up in one pass.
Common questions about fixing encoding issues in your data files
Mojibake (文字化け) is a term for garbled text that results from text being decoded using a different character encoding than the one it was encoded with. For example, the character "é" might appear as "é" when UTF-8 encoded text is read as Latin-1. This tool detects and fixes these common encoding errors.
You can upload CSV, XLSX (Excel), XLS (legacy Excel), and ODS (OpenDocument) files. For output, you can download as CSV (with optional UTF-8 BOM for Excel compatibility) or as XLSX.
Yes, completely. All processing happens entirely in your browser. Your file is never uploaded to any server. The encoding patterns are applied locally using JavaScript, so your data stays private.
Since processing is client-side, it depends on your browser and device. Most modern browsers handle tens of thousands of rows with ease. For very large files (100K+ rows), processing may take a few seconds — you can track progress with the real-time progress bar.
The tool supports 200+ encoding patterns across 15 categories: Spanish, French, German, Portuguese, Scandinavian, Polish, Czech, Greek, Punctuation & Quotes, Math Symbols, Currency, Arrows, Symbols, Whitespace, and Double Encoding. You can select exactly which categories to scan for.
No. The encoding fixer is completely free with no signup required. Just upload your file and start fixing. If you need additional tools like programmatic SEO, bulk image generation, or keyword clustering, check out the full InstaRank platform.
The Encoding Fixer is just one of our free tools. Explore programmatic SEO, bulk image generation, keyword clustering, and more.
