Substring extractor
World's simplest string toolFree online substring extractor. Just enter your string and this utility will automatically extract a string fragment of the given length from the given position. There are no intrusive ads, popups or nonsense, just a substring extractor. Load a string – get a substring. Created for developers by developers from team Browserling.
A link to this tool, including input, options and all chained tools.
Can't convert.
What is a substring extractor?
learn more about this toolThis web application extracts a substring from a string. It cuts the characters starting from the "start" position and ends the cut when it counts "length" characters. Both "start" and "length" can be specified in the options. For example, if the string is "Penguin" and the start is 5 and the length is 2, then the extracted substring is "ui". Starting position can take both positive and negative values. For example, if in the same penguin example the start was -4, then it would mean that we should start trimming the string from the fourth character from the end, and we would get the substring "gu". Length can also be negative. The length sign indicates the cutting direction. If the sign is "+" then truncation is to the right, if the sign is "-", then it's to the left. For example, if the start is 3 and the length is -2, then we get the substring "en". It is also possible that both variables are negative. For example, the start -3 and length -4 will give the substring "engu". If you want to truncate the beginning part of the string, just leave the length field empty, or enter the "-" sign to truncate the end part of the string. To quickly get substrings of many strings, activate the "Multi-line Mode". In this case, each string on each line will get truncated. We also have an additional option that reverses characters in the output substring. Stringabulous!
Substring extractor examples
Click to useExtract a Substring
In this example, we extract a substring from a quote from the film The Wizard of Oz. We specify the starting position equal to 12 and indicate the length of the substring to be 10 characters long. After cutting the string, we get two words "place like" in the output.
There's no place like home.
place like
Required options
Extract a substring starting
from this position.
from this position.
Extract a substring of this
length.
length.
Extract a substring
from each line of text.
from each line of text.
Reverse the extracted
substring.
substring.
Airport Departure Table
In this example, we activate the multi-line mode to extract the flight numbers from an airline timetable. We set a negative length value, which means that the truncation will be performed in the left direction from the specified starting position. Thus, we extract 7 symbols before the 13th character.
11:40 MK 1744 Amsterdam
11:55 LF 2834 Madrid
12:00 DA 4154 Frankfurt
12:05 RT 3812 London
12:05 TY 1029 Barcelona
12:20 HR 2834 Istanbul
12:25 KL 4212 Paris
MK 1744
LF 2834
DA 4154
RT 3812
TY 1029
HR 2834
KL 4212
Required options
Extract a substring starting
from this position.
from this position.
Extract a substring of this
length.
length.
Extract a substring
from each line of text.
from each line of text.
Reverse the extracted
substring.
substring.
Country Calling Codes
In this example, we use a negative start value to extract the country calling codes from several strings. The starting position -7 means that substrings start from the seventh character from the end, which is the "+" symbol before the code. Then four characters are extracted in the right direction, which make up the country code.
Cyprus +357 CY
Albania +355 AL
Belarus +375 BY
Iceland +354 IS
Latvia +371 LV
Tunisia +216 TN
Taiwan +886 TW
+357
+355
+375
+354
+371
+216
+886
Required options
Extract a substring starting
from this position.
from this position.
Extract a substring of this
length.
length.
Extract a substring
from each line of text.
from each line of text.
Reverse the extracted
substring.
substring.
Visitor List
This example uses negative values for both the start and length. This makes the program cut the lines on the right side, moving the cursor to the left side. Thus, the extracted substrings are the day and month.
Caleb Blevins Sun, Jul 05
Phyllis Ayers Tue, Oct 01
David Elliott Wed, Oct 23
Basia Mosley Mon, Dec 30
Chanda Farley Tue, Mar 03
Adena Mosley Sat, Aug 10
Elvis Kramer Tue, Oct 13
Kelly Nieves Wed, Dec 04
Sun, Jul
Tue, Oct
Wed, Oct
Mon, Dec
Tue, Mar
Sat, Aug
Tue, Oct
Wed, Dec
Required options
Extract a substring starting
from this position.
from this position.
Extract a substring of this
length.
length.
Extract a substring
from each line of text.
from each line of text.
Reverse the extracted
substring.
substring.
Extract Reversed Substring
In this example, because we have activated the "Reverse Substring" option, we extract a reversed substring from the end of each string. We start from the second position on the right (skipping the exclamation mark at the end) and moving to the beginning, we return three letters. In the output, we get reversed substrings of the words "cat", "dog", and "fox", which are "tac", "god", and "xof".
Hello, cat!
Hello, dog!
Hello, fox!
tac
god
xof
Required options
Extract a substring starting
from this position.
from this position.
Extract a substring of this
length.
length.
Extract a substring
from each line of text.
from each line of text.
Reverse the extracted
substring.
substring.
Color Names
In this example, we specify only the starting character position value and leave the length field value empty. In this case, the tool extracts all characters from the 9th position to the end of each line. As a result, cut off all hex colors and leave only the RGB codes and color names.
#FF0000 RGB(255, 0, 0) RED
#FFA500 RGB(255, 165, 0) ORANGE
#FFD700 RGB(255, 215, 0) GOLD
#FFFF00 RGB(255, 255, 0) YELLOW
#800080 RGB(128, 0, 128) PURPLE
#4B0082 RGB(75, 0, 130) INDIGO
#00FF00 RGB(0, 255, 0) LIME
#008000 RGB(0, 128, 0) GREEN
#0000FF RGB(0, 0, 255) BLUE
#000080 RGB(0, 0, 128) NAVY
#000000 RGB(0, 0, 0) BLACK
RGB(255, 0, 0) RED
RGB(255, 165, 0) ORANGE
RGB(255, 215, 0) GOLD
RGB(255, 255, 0) YELLOW
RGB(128, 0, 128) PURPLE
RGB(75, 0, 130) INDIGO
RGB(0, 255, 0) LIME
RGB(0, 128, 0) GREEN
RGB(0, 0, 255) BLUE
RGB(0, 0, 128) NAVY
RGB(0, 0, 0) BLACK
Required options
Extract a substring starting
from this position.
from this position.
Extract a substring of this
length.
length.
Extract a substring
from each line of text.
from each line of text.
Reverse the extracted
substring.
substring.
Pro tips Master online string tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinestringtools.com/extract-substring?input=There%27s%20no%20place%20like%20home.&start=12&length=10&multi-line=false&reverse=false
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Quickly edit a string in a browser-based editor.
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Replace a set of strings with a new set of strings.
Title-case a String
Convert a string to a title.
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Convert a string to proper case.
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Convert the first letter of every word in a string to uppercase.
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Stretch out a string and align it along the left and right margins.
Left-align a String
Align a string to the left.
Format a Multi-line String
Format and align a multi-line string.
Number of Letters in a String
Find how many letters there are in a string.
Number of Words in a String
Find how many words there are in a string.
Number of Lines in a String
Find how many lines there are in a multi-line string.
Number of Paragraphs in a String
Find how many paragraphs there are in a multi-line string.
Sort Letters in a String
Sort all letters in a string alphabetically.
Sort Words in a String
Sort all words in a string alphabetically.
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Sort a string that contains only numbers.
Reverse Words in a String
Reverse the order of all words in a string.
Reverse Sentences in a String
Reverse the order of all sentences in a string.
String Frequency Analysis
Find most frequent letters, words and phrases in a string.
Generate a Custom String
Create a string with specific properties.
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Generate a mnemonic for words in a string.
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Rearrange letters in a string and create a new string.
Number a Multi-line String
Add line numbers to a multi-line string.
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Split a string into chunks of certain length.
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Find syllables in a string.
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Shuffle the order of all words in a string.
Extract Emails from a String
Find and extract all email addresses from a string.
Extract URLs from a String
Find and extract all web addresses from a string.
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Make a string go in zigzags.
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Make a string go in a circle.
Squarify a String
Make a string go in a square or a rectangle.
Spiralify a String
Make a string go in a spiral.
Blockify a String
Fit a string in an N-by-M block.
Extract Numbers from a String
Find and extract all numbers from a string.
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Analyze a string's complexity, including entropy.
ROT18 a String
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We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling we love to make peoples' lives easier, so we created this collection of online string tools. All our tools share the same user interface so as soon as you learn how to use one of the tools, you'll instantly know how to use all of them. Our online string tools are actually powered by our web developer tools that we created over the last couple of years. Check them out!
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