Remove Duplicate Lines

Remove duplicate lines from text while preserving order.

When to use this tool

Clean up lists, CSV extracts, or log files that contain repeated entries. Essential for data deduplication tasks where you need to keep only the first occurrence of each line.

How to use

1. Paste the text with duplicate lines. 2. Click "Remove Duplicates". 3. Copy the deduplicated result with original order preserved.

Input

Output

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API Reference

Tier: Free
Endpoint: POST http://5.75.144.42/api/v1/tools/string-utilities/remove-duplicate-lines
Method: POST
Content-Type: application/json

Rate Limits

Unauthenticated: 10 req/min
Free: 30 req/min
Premium: 1000 req/min

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Request Body

{
    "input": "apple\nbanana\napple\ncherry"
}

Sample Request

curl -X POST "http://5.75.144.42/api/v1/tools/string-utilities/remove-duplicate-lines" \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer YOUR_API_KEY" \
    -d '{"input":"apple\nbanana\napple\ncherry"}'

Sample Response

{
    "success": true,
    "data": {
        "input": "apple\nbanana\napple\ncherry",
        "result": "apple\nbanana\ncherry"
    },
    "meta": {
        "tool": "remove-duplicate-lines",
        "tier": "free"
    }
}