Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
i

Test String

Code Generator

Language

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "__typename\":\"GraphImage\",\"id\":\"(.*?)\",\"edge_media_to_caption\":\\{\"edges\":\\[\\{\"node\":\\{\"text\":\"(.*?)\"\\}\\}]\\},\"shortcode\":\"(.*?)\",\"edge_media_to_comment\":\\{\"count\":(.*?)\\},\"comments_disabled\":false,\"taken_at_timestamp\":(.*?),\"dimensions\":\\{\"height\":(.*?),\"width\":(.*?)\\},\"display_url\":\"(.*?)\",\"edge_liked_by\""; final String string = "/27891564_190819718336556_2731792619813208064_n.jpg?_nc_ht=instagram.fdel1-4.fna.fbcdn.net\",\"requested_by_viewer\":false,\"username\":\"ziynetaki\",\"connected_fb_page\":null,\"edge_felix_video_timeline\":{\"count\":0,\"page_info\":{\"has_next_page\":false,\"end_cursor\":null},\"edges\":[]},\"edge_owner_to_timeline_media\":{\"count\":4,\"page_info\":{\"has_next_page\":false,\"end_cursor\":null},\"edges\":[{\"node\":{\"__typename\":\"GraphImage\",\"id\":\"1998193948597745904\",\"edge_media_to_caption\":{\"edges\":[{\"node\":{\"text\":\"test\"}}]},\"shortcode\":\"Bu7As8ygPjw\",\"edge_media_to_comment\":{\"count\":0},\"comments_disabled\":false,\"taken_at_timestamp\":1552423302,\"dimensions\":{\"height\":216,\"width\":320},\"display_url\":\"https://instagram.fdel1-4.fna.fbcdn.net/vp/b26fc82649aebaba80ff8750844d9476/5D32EFAE/t51.2885-15/e35/52508202_381950182383672_2887085630092404003_n.jpg?_nc_ht=instagram.fdel1-4.fna.fbcdn.net\",\"edge_liked_by\":{\"count\":6},\"edge_media_preview_like\":{\"count\":6},\"location\":null,\"gating_info\":null,\"media_preview\":\"ACoc6SiiigAooooAKKKKACiiigAooooAKKKKAP/Z\",\"owner\":{\"id\":\"7101789977\",\"username\":\"ziynetaki\"},\"thumbnail_src\":\"https://instagram.fdel1-4.fna.fbcdn.net/vp/7d5606659a99d7a3b8f4d941f8d33a19/5D171D3A/t51.2885-15/e35/c52.0.216.216,\"p\":{\"show_feedback\":\"false\"}},\"igwspe\":{\"g\":\"has_sensitivity_screen\",\"p\":{\"has_stories_sensitivity_screen\":\"true\"}},\"0\":{\"p\":{\"0\":false,\"1\":false,\"2\":false},\"qex\":true},\"2\":{\"p\":{\"0\":false},\"qex\":true},\"3\":{\"p\":{\"0\":false},\"qex\":true},\"4\":{\"p\":{\"0\":false},\"qex\":true},\"5\":{\"p\":{\"0\":false},\"qex\":true}},\"probably_has_app\":true},\"rollout_hash\":\"01e70cf96366\",\"bundle_variant\":\"es6\",\"is_canary\":false};</script>\n"; final Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE); final Matcher matcher = pattern.matcher(string); if (matcher.find()) { System.out.println("Full match: " + matcher.group(0)); for (int i = 1; i <= matcher.groupCount(); i++) { System.out.println("Group " + i + ": " + matcher.group(i)); } } } }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html