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◈ Processed on your device
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HTTP header parser

Parse header lines, preserving repeated values.

Free

Parse header lines, preserving repeated values. Paste colon-separated header lines to build a lowercase-name object with value arrays. Repeated names append values instead of overwriting earlier lines.

◈ Local processingFree

How to use

  1. Enter your text, values, or image.
  2. Adjust the options and run the tool.
  3. Copy or download your result.

Worked example

Example input

Input: Content-Type: text/plain
X-Test: a
X-Test: b

Example result

{
  "content-type": [
    "text/plain"
  ],
  "x-test": [
    "a",
    "b"
  ]
}

Limitations and details

Input must contain header fields only; request/status lines, folded continuation lines and live HTTP fetching are not supported.

Inputs and options

Input
Text

Frequently asked questions

Is this tool free and private?

Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.

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