Free Regex Tester API - Test Patterns

Parameters

name	in	type	required	description
`pattern`	body	string	required	Without delimiters (e.g. ^[a-z]+$)
`text`	body	string	required	Test Text
`flags`	body	string	optional	i=case-insensitive, m=multiline, s=dotall, u=unicode
`global`	body	boolean	optional	Find all matches, not just the first

Request

Send your key in the X-API-Key header. More languages and patterns live on the code examples page.

curl -s -X POST "https://apixies.io/api/v1/test-regex" \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"pattern":"(\\w+)@(\\w+)\\.(\\w+)","text":"Contact us at alice@example.com or bob@test.org"}'

const res = await fetch("https://apixies.io/api/v1/test-regex", {
  method: "POST",
  headers: {
    "X-API-Key": "YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
      "pattern": "(\\w+)@(\\w+)\\.(\\w+)",
      "text": "Contact us at alice@example.com or bob@test.org"
  })
});
const data = await res.json();
console.log(data);

$ch = curl_init("https://apixies.io/api/v1/test-regex");
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_HTTPHEADER => [
        "X-API-Key: YOUR_API_KEY",
        "Content-Type: application/json",
    ],
    CURLOPT_POSTFIELDS => '{"pattern":"(\\\\w+)@(\\\\w+)\\\\.(\\\\w+)","text":"Contact us at alice@example.com or bob@test.org"}',
]);
$data = json_decode(curl_exec($ch), true);
curl_close($ch);

print_r($data);

import requests

res = requests.request(
    "POST",
    "https://apixies.io/api/v1/test-regex",
    json={
        "pattern": "(\\w+)@(\\w+)\\.(\\w+)",
        "text": "Contact us at alice@example.com or bob@test.org"
    },
    headers={"X-API-Key": "YOUR_API_KEY"},
)
print(res.json())

Response

The result sits under data in the standard envelope. See the response format guide for errors and status codes.

returns

data.matches: Each match with its text, groups, index and length.
data.is_match: True when the pattern matched at least once.
data.match_count: Number of matches found.
data.execution_time_ms: How long the match took, in milliseconds.

example response 200

{
    "status": "success",
    "http_code": 200,
    "code": "SUCCESS",
    "message": "Regex test completed",
    "data": {
        "pattern": "(\\w+)@(\\w+)\\.(\\w+)",
        "flags": "",
        "is_match": true,
        "match_count": 2,
        "matches": [
            {
                "full_match": "alice@example.com",
                "groups": [
                    "alice",
                    "example",
                    "com"
                ],
                "index": 14,
                "length": 17
            },
            {
                "full_match": "bob@test.org",
                "groups": [
                    "bob",
                    "test",
                    "org"
                ],
                "index": 35,
                "length": 12
            }
        ],
        "execution_time_ms": 0
    }
}

Authentication and limits

This endpoint needs an API key. Use the sandbox ("try it" above) to test it without registering. See the authentication guide for details.

Standard rate limits apply to this endpoint.

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getting started

authentication code examples response format

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