Free Base64 Decoder Online

Base64 decoding is an easy way to make your data more compact for uploading or transferring.

Test Your Web Or Mobile Apps On 3000+ Browsers
Signup for free...

Enter Value


Base 64 encoding is a method of encoding binary data, such as images, audio, and documents, into a text-based format that can be easily transmitted and stored. The encoded data is represented by a set of 64 characters, which includes the 26 upper and lowercase letters of the alphabet, the 10 digits, and 2 special characters, the "+" and "/" symbols.

The process of base 64 encoding takes the binary data and converts it into a stream of 6-bit characters. Each 6 bits of the binary data is then mapped to one of the 64 characters in the base 64 alphabet. This results in the original binary data being expanded by approximately 33%, since each 8 bits of binary data is converted into 6 bits of base 64 data.

The encoded data can then be transmitted or stored as a text file, which allows it to be easily transmitted over networks or stored in databases. This is particularly useful for sending binary data through email systems or other text-based communication channels, as well as for storing binary data in text-based file systems.

Base 64 encoding is also commonly used in security applications, such as for encoding passwords or other sensitive information. When used in this context, the encoded data is typically decoded on the receiving end, using a process known as base 64 decoding.

It's also important to note that Base 64 is not an encryption method, it's a encoding method, it doesn't add any security on the data itself, it's just a way of representing the data in a different format.

What is Base64 Decode?

Base64 decoding is a way of translating text form into binary data so that it can be transmitted more easily via e-mail and HTML form data.

How do you decode Base64?

Base64 decoding can be easily done through LambdaTest's free base64 decoder tool. You have to just paste the base64 value & it will automatically decode it to text.

What is == in Base64?

(==) indicates that the four characters will decode to only a single byte. In general (=) is used as a padding character. It is added to the end of the encoded data to ensure that the encoded data can be decoded properly.

Can Base64 be hacked?

Base64 is a widely used encoding method, but it is not a form of encryption. It only encodes data, it does not encrypt it. Therefore, Base64 encoded data can be easily decoded and the original information can be accessed. If the encoded data contains sensitive information, it should be encrypted before being encoded with Base64 to ensure its security.

Why Base64 is not secure?

Base64 is not considered a secure method because it can be easily decoded. The encoded data can be easily restored to its original form without the need for a secret key or password. Base64 should not be used to protect sensitive information such as passwords or financial data. Encryption should be used in conjunction with Base64 or a more secure alternative should be considered.

What is Base64 used for?

Base64 decoding works with a subset of the US-ASCII charset. The first 64 characters are represented by equivalent 6-bit binary sequences (2^6 = 64). The 65th character, which is =, is used for padding.

Did you find this page helpful?



More Tools

... Code Tidy
... Data Format
... Random Data
... Hash Calculators
... Utils

Try LambdaTest Now !!

Get 100 minutes of automation test minutes FREE!!

Next-Gen App & Browser Testing Cloud