what is utf 8 and base64

UTF-8 is a text encoding - a way of encoding text as binary data. Base64 is in some ways the opposite - it's a way of encoding arbitrary binary data as ASCII

text. Wikipedia has a good expalanation of what base64 encoding and decoding involves.

Full Answer

What is Base64 encoding and how does it work?

• R Dec: 17 Bin: 010 001
• G Dec: 6 Bin: 000 110
• 9 Dec: 61 Bin: 111 101
• n Dec: 39 Bin: 100 111
• c Dec: 28 Bin: 011 100
• w Dec: 48 Bin: 110 000
• = Dec: -- Bin: --- ---
• = Dec: -- Bin: --- ---

What are some alternatives to using base64 encoding?

• 00-25 A-Z
• 26-51 a-z
• 52-61 0-9
• 62 +
• 63 /

What is the real purpose of base64 encoding?

• Base64 Decode is very unique tool to decode base64 data to plain text.
• This tool saves your time and helps to decode base64 data.
• This tool allows loading the Base64 data URL, which loads base64 encoded text and decodes to human readable text. ...
• Users can also convert base64 data File to Plain text by uploading the file.

Is Base64 encoding secure?

Yes, this base64 encoder is safe & secure. We do not save any of your data in server. Neither the data is visible to any 3rd party. How to decode base64 encoded string? To decode base64 encoded string use this smalldev.tools base64 decoder online Base64 encoding is also called content transfer encoding or b64

Is Base64 same as UTF-8?

UTF-8 is like the other UTF encodings a character encoding to encode characters of the Unicode character set UCS. Base64 is an encoding to represent any byte sequence by a sequence of printable characters (i.e. A – Z , a – z , 0 – 9 , + , and / ). There is no System. Text.

What is Base64 used for?

Base64 encoding schemes are commonly used when there is a need to encode binary data that needs to be stored and transferred over media that are designed to deal with ASCII. This is to ensure that the data remain intact without modification during transport.

What is UTF-8 encoding used for?

UTF-8 is the most widely used way to represent Unicode text in web pages, and you should always use UTF-8 when creating your web pages and databases. But, in principle, UTF-8 is only one of the possible ways of encoding Unicode characters.

What is UTF-8 an example of?

UTF-8 is a Unicode character encoding method. This means that UTF-8 takes the code point for a given Unicode character and translates it into a string of binary.

What is Base64 string example?

Base64 Encoding Example A Base64 encoder starts by chunking the binary stream into groupings of six characters: 100110 111010 001011 101001. Each of these groupings translates into the numbers 38, 58, 11, and 41.

Is Base64 a hash?

Encoding, hashing, and encryption can be used together. A base64 encoded message to an application may be hashed so the integrity of that message can be verified by the receiver.

Why is UTF-8 used for HTML files?

Working with non-UTF-8 encodings Using UTF-8 not only simplifies authoring of pages, it avoids unexpected results on form submission and URL encodings, which use the document's character encoding by default.

What is UTF in HTML?

UTF-16. 16-bit Unicode Transformation Format is a variable-length character encoding for Unicode, capable of encoding the entire Unicode repertoire. UTF-16 is used in major operating systems and environments, like Microsoft Windows, Java and .

Does UTF-8 support all languages?

Content. UTF-8 supports any unicode character, which pragmatically means any natural language (Coptic, Sinhala, Phonecian, Cherokee etc), as well as many non-spoken languages (Music notation, mathematical symbols, APL). The stated objective of the Unicode consortium is to encompass all communications.

Does Python use UTF-8?

UTF-8 is one of the most commonly used encodings, and Python often defaults to using it.

How do I change a file to UTF-8?

Click Tools, then select Web options. Go to the Encoding tab. In the dropdown for Save this document as: choose Unicode (UTF-8). Click Ok.

How can I tell if a file is UTF-8?

To verify if a file passes an encoding such as ascii, iso-8859-1, utf-8 or whatever then a good solution is to use the 'iconv' command.

Tuesday, April 12, 2016

Often when dealing with binary data in a unicode context (e.g. JSON serialization) the data is first base64 encoded. However, Python unicode objects can also use escape sequences.

Base64 vs UTF-8

Often when dealing with binary data in a unicode context (e.g. JSON serialization) the data is first base64 encoded. However, Python unicode objects can also use escape sequences.

Naming

The official Internet Assigned Numbers Authority (IANA) code for the encoding is "UTF-8". All letters are upper-case, and the name is hyphenated. This spelling is used in all the Unicode Consortium documents relating to the encoding.

Encoding

Since the restriction of the Unicode code-space to 21-bit values in 2003, UTF-8 is defined to encode code points in one to four bytes, depending on the number of significant bits in the numerical value of the code point. The following table shows the structure of the encoding. The x characters are replaced by the bits of the code point.

Adoption

Use of the main encodings on the web from 2001 to 2012 as recorded by Google, with UTF-8 overtaking all others in 2008 and over 60% of the web in 2012 (since then approaching 100%). The ASCII -only figure includes all web pages that only contain ASCII characters, regardless of the declared header.

History

The International Organization for Standardization (ISO) set out to compose a universal multi-byte character set in 1989. The draft ISO 10646 standard contained a non-required annex called UTF-1 that provided a byte stream encoding of its 32-bit code points.

Standards

There are several current definitions of UTF-8 in various standards documents:

Derivatives

The following implementations show slight differences from the UTF-8 specification. They are incompatible with the UTF-8 specification and may be rejected by conforming UTF-8 applications.

What Is UTF-8?

UTF-8 stands for “Unicode Transformation Format - 8 bits.” That’s not helpful to us yet, so let’s rewind to the basics.

UTF-8 Characters in Web Development

UTF-8 is the most common character encoding method used on the internet today, and is the default character set for HTML5. Over 95% of all websites, likely including your own, store characters this way. Additionally, common data transfer methods over the web, like XML and JSON, are encoded with UTF-8 standards.

UTF-8 vs. UTF-16

As I mentioned, UTF-8 is not the only encoding method for Unicode characters — there’s also UTF-16. These methods differ in the number of bytes they need to store a character. UTF-8 encodes a character into a binary string of one, two, three, or four bytes. UTF-16 encodes a Unicode character into a string of either two or four bytes.

Decoding the World of UTF-8 Encoding

That was a lot of words about words, so let’s summarize what we’ve covered: