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String to Base64 Converter

World's Simplest String Tool

Free online string to base64 encoder. Just load your string and it will automatically get converted to base64. Load a string, get base64. There are no intrusive ads, popups or nonsense, just an awesome string to base64 encoder. Created for developers by developers from team Browserling.

᠎᠎᠎          Tool Options

Base64 Chunks

Split base64 output into lines
with a constant size.
Output line length.
Disable base64 chunks and
print output as a continuous
stream of text.

What Is a String to Base64 Converter?

This tool converts a plain string to base64 encoding. Base64 encoding uses only letters a-z, A-Z, 0-9 and plus, slash and equals sign characters. This encoding scheme takes every 6 bits of the input string and assigns one of 64 letters to it. It's easy to calculate that base64 produces a larger output than the original string. As every sextet of bits now takes one character, the overhead is 33%. In the options above, you can also set base64 encoding's output chunk size (line length). And coming soon, you'll be able to customize 63rd (plus) and 64th (slash) alphabet characters as well as change the padding character. Stringabulous!


String to Base64 Converter Examples

Click to try!

Hello World Base64

This simple example encodes a "hello world" string message to base64. The ending "=" character is the padding character that makes sure base64 output is evenly divisible in groups of 4 characters.

hello world
aGVsbG8gd29ybGQ=
Required options
These options will be used automatically if you select this example.
Disable base64 chunks and
print output as a continuous
stream of text.

Set Base64 Chunk Size

This example changes base64 line length (chunk size) to 36 characters. This is useful when loading base64 in a text editor as editing long strings is very difficult.

Developer productivity is measured in caffeine intake. The more coffee a developer consumes, the higher is their productivity. It's rumored that developers at Google consume up to two hundred cups of coffee a day.
RGV2ZWxvcGVyIHByb2R1Y3Rpdml0eSBpcyBt ZWFzdXJlZCBpbiBjYWZmZWluZSBpbnRha2Uu IFRoZSBtb3JlIGNvZmZlZSBhIGRldmVsb3Bl ciBjb25zdW1lcywgdGhlIGhpZ2hlciBpcyB0 aGVpciBwcm9kdWN0aXZpdHkuIEl0J3MgcnVt b3JlZCB0aGF0IGRldmVsb3BlcnMgYXQgR29v Z2xlIGNvbnN1bWUgdXAgdG8gdHdvIGh1bmRy ZWQgY3VwcyBvZiBjb2ZmZWUgYSBkYXku
Required options
These options will be used automatically if you select this example.
Split base64 output into lines
with a constant size.
Output line length.

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/convert-string-to-base64?input=hello%20world&base64-no-split=true

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Didn't find the tool you were looking for? Let us know what tool we are missing and we'll build it!
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Quickly URL-unescape a string.
Quickly convert a string to HTML entities.
Quickly convert HTML entities to a string.
Quickly convert a string to base64 encoding.
Quickly decode a base64-encoded string.
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Quickly quote a string with backslashes.
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Quickly generate a random string.
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Quickly find and replace parts of a string with a new string.
Quickly truncate a string to the given length.
Quickly left-trim and right-trim a string.
Quickly pad a string on the left side.
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Quickly align a string to the right.
Quickly center a string.
Quickly sort a list of strings in alphabetical, alphanumerical or numerical order.
Quickly rotate a string to the left or to the right.
Quickly convert a string to ROT13.
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Quickly transpose a string.
Quickly fetch a part of a string.
Quickly add a prefix to a string.
Quickly add a suffix to a string.
Quickly add a pair of quotes around a string.
Quickly remove quotes around a string.
Quickly convert spaces to newlines in a string.
Quickly convert newlines to spaces in a string.
Quickly convert spaces to tabs in a string.
Quickly convert tabs to spaces in a string.
Quickly remove empty lines from a string.
Quickly remove spaces, tabs, and newlines from a string.
Quickly remove dots, commas, and other marks from a string.
Quickly calculate a string's length.
Quickly calculate the number of newlines in a string.
Quickly convert a string to a sequence of bytes.
Quickly convert a sequence of bytes to a string.
Quickly convert a string to a binary string.
Quickly convert a binary string to a string.
Quickly convert a string to an octal string.
Quickly convert an octal string to a string.
Quickly convert a string to a decimal string.
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Quickly convert a string to a hexadecimal string.
Quickly convert a hexadecimal string to a string.
Quickly convert a string to ASCII codes.
Quickly convert ASCII codes to a string.
Quickly change the case of characters in a string.
Quickly convert a string to uppercase.
Quickly convert a string to lowercase.
Quickly randomize the case of each letter in a string.
Quickly invert string's case.
Quickly extract string data from a JSON data structure.
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Quickly convert a JSON stringified string to a regular string.
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Quickly extract all string data from an XML document.
Quickly convert a CSV file to evenly aligned columns of space-separated strings.
Quickly convert strings to a proper CSV file.
Quickly extract all string data from a BBCode markup.
Quickly convert a string to Morse code.
Quickly convert Morse code to a string.
Quickly create a palindrome from a string.
Quickly check if a string is a palindrome.
Quickly generate all monograms of a string.
Quickly generate all digrams of a string.

Coming Soon

These string tools are on the way!
View and Edit Strings

Quickly edit a string in a browser-based editor.

Replace Multiple Strings

Replace a set of strings with a new set of strings.

Title-case a String

Convert a string to a title.

Proper-case a String

Convert a string to proper case.

Capitalize Words in a String

Convert the first letter of every word in a string to uppercase.

Justify a String

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.

Sort a Numeric String

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.

Create String Mnemonic

Generate a mnemonic for words in a string.

Create an Anagram from a String

Rearrange letters in a string and create a new string.

Number a Multi-line String

Add line numbers to a multi-line string.

Wrap a String

Wrap strings to the given line length.

Chunkify a String

Split a string into chunks of certain length.

Divide a String into Syllables

Find syllables in a string.

Shuffle Words in a String

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.

Zigzagify a String

Make a string go in zigzags.

Circlify a String

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.

Calculate String Statistics

Analyze a string's complexity, including entropy.

ROT18 a String

Quickly convert a string to ROT18.

Convert a String to Punycode

Encode a string to punycode.

Convert Punycode to a String

Decode a string from punycode.

QP-encode a String

Convert a string to quoted-printable encoding.

QP-decode a String

Convert quoted-printable encoded data to a string.

Base32-encode a String

Encode a string to base32.

Base32-decode a String

Decode a string from base32.

Base45-encode a String

Encode a string to base45.

Base45-decode a String

Decode a string from base45.

Base58-encode a String

Encode a string to base58.

Base58-decode a String

Decode a string from base58.

Base85-encode a String

Encode a string to Ascii85.

Base85-decode a String

Decode a string from Ascii85.

UTF8-encode a String

Encode a string to UTF8.

UTF8-decode a String

Decode a string from UTF8.

UTF16-encode a String

Encode a string to UTF16.

UTF16-decode a String

Decode a string from UTF16.

UTF32-encode a String

Encode a string to UTF32.

UTF32-decode a String

Decode a string from UTF32.

IDN-encode a String

Encode a string to IDN.

IDN-decode a String

Decode a string from IDN encoding.

Uuencode a String

Convert a string to Unix-to-Unix encoding.

Uudecode a String

Convert Unix-to-Unix data to a string.

Xxencode a String

Convert a string to Xxencoding.

Xxdecode a String

Convert an Xxencoded string to a regular string.

HTML-strip a String

Strip all HTML tags from a string.

Remove Accent Characters

Remove all diacritical signs from a string.

Add Accent Characters

Randomly add accent characters to letters in a string.

Delete String Symbols

Remove punctuation marks and other symbols from a string.

Delete String Characters

Remove characters from a string.

Delete String Vowels

Remove vowels from a string.

Delete String Consonants

Remove consonants from a string.

Add Duplicate Spaces

Duplicate spaces in a string so one space becomes two.

Remove Duplicate Spaces

Normalize string spacing and remove all duplicate spaces.

Diff Two Strings

Visualy compare and find differences between two strings.

String Levenshtein Distance

Calculate Levenshtein distance between two strings.

String Hamming Distance

Calculate Hamming distance between two strings.

Find LCS of Two Strings

Find the longest common subsequence of two strings.

Rewrite a String

A tiny string rewriting system.

Reduce String Alphabet

Limit the alphabet letters that are used in a string.

Generate a Zalgo String

Convert a string to Unicode mess.

Make a Zalgo String Readable

Remove Unicode mess from a string.

Generate String Typos

Create a list of all possible string typos.

Mirror a String

Generate a mirror copy of a string.

Generate Trigrams

Generate all 3-grams of a string.

Generate all N-grams

Generate all ngrams of a string.

Generate N-skip-M-grams

Generate n-skip-m-grams of a string.

Tokenize a String

Create a list of tokens from a string.

Lemmatize a String

Lemmatize all words in a string.

Stem a String

Do stemming of all words in a string.

Grep a String

Extract fragments that match a regular expression in a string.

Head a String

Split a string into fragments and extract the beginning parts.

Tail a String

Split a string into fragments and extract the ending parts.

Convert a String to Hyperstring

Create a hyperstring from a string.

Convert Hyperstring to a String

Create a regular string from a hyperstring.

Convert a String to an Array

Create an array of characters from a string.

Convert a String to Integers

Split a string into characters and return their integer values.

Replace Letters with Digits

Put digits in place of characters in a string.

Fix String Quoting

Correct misquoted strings (add/remove missing quotes).

Shift a String

Shift characters in a string to the left or right.

Color a String

Create a colorful string.

Slugify a String

Create a SEO-friendly URL from a string.

Create Mistakes in a String

Substitute random characters in a string and make errors.

Find Mistakes in a String

Run a spell checker and find mistakes in a string.

Mix Two Strings

Interleave two strings character by character.

Repeat String Characters

Duplicate characters in a string multiple times.

Generate LCD String

Draw a string on an LCD screen.

Generate a Short String

Create a string that doesn't have too many characters.

Generate a Long String

Create a string that has many characters.

Create a String of Certain Length

Generate a string with a certain amount of characters.

Generate Twin Strings

Create two strings that have the twin property.

Generate Triplet Strings

Create three strings that have the triplet property.

Create a String Cloud

Generate a word cloud from all words in a string.

Partition a String

Split a string into multiple substrings.


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