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Windows Command - "certutil -encode/-decode"
This section provides a tutorial example on how to use 'certutil -encode' command on a Windows system to perform Base64 encoding and decoding. 2023-09-13, ≈33🔥, 8💬

💬 2023-03-12 reuven: BljLekAtpu5P/0tC7W2A/kGfa0pIz5LV52xj KwDtM3Ne04Z39D69GFqZ3qTfTBLAKMbZuJx5 /rST7L7VVpdp/RH6Cjcw5/dhmAuRzhWGOyFq d3p/b8YOj8A8DvwUF8bg...

💬 2022-09-28 Amol: MIIDFDCCAfwCAQAwgZIxCzAJBgNVBAYTAkFV MQwwCgYDVQQIDANWSUMxEjAQBgNVBAcMCU1lbGJvdXJuZTEaMBgGA1UECgwRTW9u ZXkgYnkgQWZ0ZXJwYXkxHDAaBgN...

💬 2022-07-21 Herong: R, thanks for the correction.

💬 2022-07-20 R W: "Base64 with not line breaks" should be"Base64 with no line breaks"

Base64 Encoding Algorithm
This section describes the Base64 encoding algorithm with some simple encoding examples. 2024-01-04, ≈23🔥, 33💬

💬 2024-01-04 wis: I get the impression we read the input string from left to right? The string "ABCD" gets divided into "ABC" and "D"? -> QUJDRA==...

💬 2023-01-26 JB: Seizka

💬 2022-10-19 budi: nice

💬 2022-02-06 ANONYMOUS: Wow! Nice explain.. Thanks a lot ;)

💬 2021-11-21 Jack: The best explanation of Base64 encoding! Thanks!

(More comments ...)

Base32 Encoding Algorithm
This section describes the Base32 encoding algorithm with some simple encoding examples. 2024-01-20, ≈16🔥, 12💬

💬 2024-01-20 Hello World!: super

💬 2023-05-22 dino: helloiamdino

💬 2022-11-11 Herong: Tomi, you can have lowercase, uppercase, or any kind of characters in the input. They all are encoded as binary input data. By d...

💬 2022-11-09 Tomi: One question, can we have lowercase and uppercase letters in both the input and output?

💬 2021-03-20 Yours: Encryption is the method by which information is converted into secret code that hides the information's true meaning. The scien...

(More comments ...)

application/x-www-form-urlencoded Encoding in Java
This section provides a tutorial example on how to use Java URLEncoder class to perform application/x-www-form-urlenco dedencoding and decoding. 2023-01-24, ≈10🔥, 3💬

💬 2023-01-24 fsdfsfd: csafa

💬 2017-03-31 s: &response=00&responseTimeSta mp=1490897171453&externalId=123f gh&type=AUTHORIZE_RESPONSE&serviceId=102&re...

💬 2016-09-22 dasgjdfa: test & good

macOS Command - "base64"
This section provides a tutorial example on how to use 'base64' command on a macOS system to perform Base64 encoding and decoding. 2022-10-01, ∼5142🔥, 0💬

Sun Implementation of Base64 in Java
This section provides the source code for the Java implementation of Base64 by Sun. 2016-01-23, ∼3476🔥, 2💬

💬 2016-01-23 Herong: Ashish, Finally Base64 encoding is included in JDK now. Thanks for sharing the tutorials;

💬 2016-01-22 Ashish: Nice Article you can read more about base 64 encoding using Java 8 at Modern Pathshala

Data Encoding Tutorials - Herong's Tutorial Examples
This book is a collection of tutorial notes and example codes written by the author while he was learning different data encoding algorithms. Topics include introduction of data encoding algorithms: Base32, Base64, UUEncode; Base64 Encoding Algorithm with W3C Implementation; Base64 Encoding tools an... 2022-03-12, ∼3033🔥, 1💬

💬 2022-03-12 Rishi V: Hi -- How do i buy copyright to the Java implantation of DES encryption / Decryption

Bitpedia Implementation of Base32 in Java
This section provides a Java implementation of the Base32 encoding algorithm by the Bitcollider project. 2022-01-27, ∼2832🔥, 3💬

💬 2016-05-21 Herong: Phil, byte[i] is actually a signed integer stored in 8-bit format. Statement like below is to convert byte[i] back as a unsigned...

💬 2016-05-18 phil.o: Thanks a lot for this implementation. I just wonder something: as byte is unsigned, would not (bytes[i] >= 0) ? always evaluate ...

UUEnccode Algorithm
This section describes the UUEncode algorithm with some simple encoding examples. 2023-05-17, ∼2782🔥, 6💬

💬 2016-06-08 Herong: Neel, can you post an example of the uuencoded string that failed? May be we can figure the root cause of the issue.

💬 2016-06-01 Neel: Hi, we are using this uudecoder since long time in our code but recently we are facing issue like "Index out of range" and that ...

💬 2015-09-16 Mark Sitkowski: Excellent! Just what I was looking for

Base64URL Encoding Algorithm
This section describes the Base64URL encoding algorithm, which is a variation of the standard Base64 encoding algorithm with 2 characters 2 characters '+/' replaced by '-_'. 2023-08-27, ∼2389🔥, 2💬

💬 2023-08-27 jozo: test b64

Sun Implementation of UUEnccode in Java
This section provides a test program for the Java implementation of UUEncode by Sun. Tests of both encoder and decoder are provided. 2016-02-29, ∼2222🔥, 2💬

💬 2016-02-29 Herong: weller, thanks for pointing out the typo. It will be corrected in the next update.

💬 2016-02-28 weller: ren SunUUEncode.uu SunUUEncode.class should be ren SunUUEncode.cls SunUUEncode.class

Python Built-In Implementation of MIME Base64
This section provides a tutorial example on how to perform Base64 encoding on binary files with both standard and MIME options using the default Python implementation of the Base64 encoding algorithm. 2022-10-01, ∼1425🔥, 0💬

Base64.Guru - Base64 Online Tool
This section describes the Base64.Guru Website, which offers a Base64 online tool for decoding and encoding with a number nice features. 2025-11-25, ∼1130🔥, 1💬

Python Built-In Implementation of Base64URL
This section provides a tutorial example on how to perform Base64URL encoding on binary files using the default Python implementation of the Base64URL encoding algorithm. 2021-10-05, ∼1067🔥, 1💬

What Is URL/URI Encoding?
This section describes what is URL/URI encoding - an encoding schema used in URL/URI that encode data into a sequence of characters prefixed with a percenter sign (%). 2019-08-16, ∼952🔥, 1💬

Andre's Implementation of Base32 in PHP
This section provides a PHP implementation of the Base32 encoding algorithm by Andre DeMarre. 2016-02-11, ∼897🔥, 1💬

💬 2016-02-11 apple: thx

URL Encoding Variations
This section describes variations of URL encodings: RFC 3986 URI Encoding, application/x-www-form-urlenco dedEncoding, RFC 1738 URL Encoding. 2022-11-23, ∼768🔥, 1💬

madebits Implementation of Base32 in C++
This section provides a C++ implementation of the Base32 encoding algorithm by madebits.com. 2025-09-26, ∼716🔥, 1💬

💬 2025-09-26 meo: it is a great library

Linux Command - "base64"
This section provides a tutorial example on how to use 'base64' command on a Linux system to perform Base64 encoding and decoding. 2022-10-01, ∼697🔥, 0💬

URI String and Components in Java
This section provides a tutorial example on how to create URI strings with URI components using Java java.net.URI class. 2022-10-01, ∼653🔥, 0💬

Base32 Encoding
This chapter provides notes and tutorials on Base32 encoding algorithm and implementations. Topics include reviewing the Base32 encoding algorithm; reviewing different Base32 character set maps; reviewing implementations of Base32 coding in Java, PHP and C++ languages. 2021-03-13, ∼599🔥, 1💬

💬 2021-03-13 Hans: Hello World!

Java Built-In Implementation of Base64URL
This section provides a tutorial example on how to perform Base64URL encoding on binary files using the default Java implementation of the Base64URL encoding algorithm. 2022-10-01, ∼551🔥, 0💬

Base64 Encoding and Decoding Tools
This chapter provides notes and tutorials on Base64 encoding tools and built-in implementations in different programming languages. Topics include reviewing Base64 online tools; introducing Base64 command line tools on Windows, Linux and macOS systems; testing built-in implementations of Base64 enco... 2022-10-01, ∼538🔥, 0💬

URL Encoding on HTML Form Data - IE
This section provides a tutorial example on how Internet Explorer (IE) 7.0 is applying URL encoding on HTML form input data. IE uses application/x-www-form-urlenco dedencoding. 2022-10-01, ∼506🔥, 0💬

1 2 3 > >>   ∑:53  Sort:Date

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO