Email Extractor
Extract and deduplicate common ASCII email-address candidates from supplied text.
Open toolURL Extractor
Choose the protocol and hostname before copying the link list. Provide Text with URLs, Protocol, Exact hostname (optional) to compute results directly in your browser. Up to 100,000 UTF-16 input units and 1,000 URL candidates. Plain-text extraction uses a documented punctuation heuristic, not a full HTML parser. Trailing punctuation and unmatched closing brackets are trimmed. Hostname filter is exact ASCII hostname without scheme, port or path. Addresses are not fetched.
Free to useNo sign-upRuns in your browser
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Enter the inputs, then select Process input.
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How the URL Extractor Works & Core Formula
The URL Extractor evaluates Text with URLs, Protocol, Exact hostname (optional) in client-side JavaScript using the deterministic rule below and updates the output panel immediately without uploading data to a server.
Candidates are parsed as URLs, filtered, then deduplicated by normalized href in first-seen order.
Up to 100,000 UTF-16 input units and 1,000 URL candidates. Plain-text extraction uses a documented punctuation heuristic, not a full HTML parser. Trailing punctuation and unmatched closing brackets are trimmed. Hostname filter is exact ASCII hostname without scheme, port or path. Addresses are not fetched.
URL Extractor Quick Reference & Input Guide
Review the input parameters, allowed value ranges, and worked reference cases for the URL Extractor below before running your calculation.
| Parameter / Scenario | Default / Sample Value | Rule or Allowed Range | Output / Usage Note |
|---|---|---|---|
| Input: Text with URLs | See https://example.com/a, then h... | Input type: textarea | Required workspace parameter |
| Input: Protocol | (User supplied) | Options: HTTP and HTTPS, HTTPS only, HTTP only | Required workspace parameter |
| Input: Exact hostname (optional) | (User supplied) | Input type: text | Required workspace parameter |
| Worked Case 1: Starting inputs | Preloaded / test values | Candidates are parsed as URLs, filtered, then deduplicated by normalized href in first-seen order | Text with URLs = See https://example.com/a, then http://example.org/b. Again https://example.com/a; Protocol = HTTP and HTTPS |
| Worked Case 2: Comparison scenario (url extractor from text) | Preloaded / test values | Candidates are parsed as URLs, filtered, then deduplicated by normalized href in first-seen order | Text with URLs = See https://example.com/a, then http://example.org/b. Again https://example.com/a; Protocol = HTTPS only; Exact hostname (optional) = example.com |
Step-by-Step Guide to Using the URL Extractor
Follow these three steps to configure Text with URLs, Protocol, Exact hostname (optional), verify unit and boundary rules, and export your URL Extractor output.
Input and settings
Tool result
Review the details
Practical Worked Examples for URL Extractor
These concrete scenarios illustrate how the URL Extractor processes baseline inputs, comparison checks, and boundary constraints.
Starting inputs
Text with URLs = See https://example.com/a, then http://example.org/b. Again https://example.com/a; Protocol = HTTP and HTTPS
Comparison scenario (url extractor from text)
Text with URLs = See https://example.com/a, then http://example.org/b. Again https://example.com/a; Protocol = HTTPS only; Exact hostname (optional) = example.com
Boundary & unit check (URL Extractor)
When solving for 'url extractor', verify that Text with URLs, Protocol, Exact hostname (optional) use consistent units and stay within the documented scope: Up to 100,000 UTF-16 input units and 1,000 URL candidates. Plain-text extraction uses a documented punctuation heuristic, not a full HTML parser. Trailing punctuation and unmatched closing brackets are trimmed. Hostname filter is exact ASCII hostname without scheme, port or path. Addresses are not fetched.
How to Read and Verify the URL Extractor Output
The output panel reports the exact result derived from Text with URLs, Protocol, Exact hostname (optional) alongside any unit or formatting notes.
Every calculation follows the rule: Candidates are parsed as URLs, filtered, then deduplicated by normalized href in first-seen order. Because JavaScript uses IEEE 754 double-precision floating-point arithmetic, numeric outputs display up to 12 significant digits where applicable.
Always cross-check the displayed result against the scope note (Up to 100,000 UTF-16 input units and 1,000 URL candidates. Plain-text extraction uses a documented punctuation heuristic, not a full HTML parser. Trailing punctuation and unmatched closing brackets are trimmed. Hostname filter is exact ASCII hostname without scheme, port or path. Addresses are not fetched) before applying the value to production specifications, financial models, or lab records.
Scope Limits, Accuracy Assumptions & Related Text Tools Tools
Review these boundary constraints and validation rules before relying on the URL Extractor output.
Operational scope: Up to 100,000 UTF-16 input units and 1,000 URL candidates. Plain-text extraction uses a documented punctuation heuristic, not a full HTML parser. Trailing punctuation and unmatched closing brackets are trimmed. Hostname filter is exact ASCII hostname without scheme, port or path. Addresses are not fetched. Inputs that violate minimum/maximum bounds or required format rules are rejected with a clear diagnostic prompt.
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Open toolFrequently Asked Questions About URL Extractor
Answers about using URL Extractor and understanding its results.
What formula or rule does the URL Extractor use?
The URL Extractor applies the rule: Candidates are parsed as URLs, filtered, then deduplicated by normalized href in first-seen order. Enter Text with URLs, Protocol, Exact hostname (optional) into the workspace and the tool computes the exact output in your browser.
What input parameters and units are required for URL Extractor?
Yes. Provide Text with URLs, Protocol, Exact hostname (optional) using the documented units and format shown in the quick reference table above. Preloaded default values let you test the workflow immediately.
What are the accuracy limits and boundary assumptions for URL Extractor?
Up to 100,000 UTF-16 input units and 1,000 URL candidates. Plain-text extraction uses a documented punctuation heuristic, not a full HTML parser. Trailing punctuation and unmatched closing brackets are trimmed. Hostname filter is exact ASCII hostname without scheme, port or path. Addresses are not fetched. Confirm that your inputs fall within the allowed ranges before exporting the result.
Is the URL Extractor free and does it keep my inputs private?
Yes. All calculations for the URL Extractor execute 100% locally in your browser's JavaScript runtime. No inputs or results are uploaded to any external server.
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