CSV Delimiter Detector

Automatically detect whether a tabular file uses comma, tab, semicolon, pipe, or custom delimiters.

How It Works & Processing Standards

Automatically detect whether a tabular file uses comma, tab, semicolon, pipe, or custom delimiters.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Desktop max file size: 50MB
  • Mobile max file size: 20MB

CSV Delimiter Detector is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use CSV Delimiter Detector

  1. 1
    Paste Delimited TextPaste a sample of your tabular file.
  2. 2
    AnalyzeExamine candidate delimiters across multiple rows.
  3. 3
    View ResultSee the detected delimiter, confidence score, and column count.

Examples

Detect Semicolon
Input: name;age;city Alice;28;Berlin Bob;34;Madrid
Result: Detected Delimiter: Semicolon (;) — Confidence: 100%

Common Use Cases

  • Determining whether a European spreadsheet uses semicolons or commas
  • Configuring automated data ingestion scripts with the correct separator
  • Diagnosing parsing errors in third-party data dumps

Frequently Asked Questions (FAQ)

Which delimiters are supported for detection?

The detector evaluates comma (,), tab (\t), semicolon (;), pipe (|), and colon (:).

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