Base64 is an encoding format that represents data using a limited ASCII character set so it can move safely through text-based systems.

Base64 is used when data must pass through systems that are designed for plain text, such as JSON, email, headers, configuration files, and data transfer formats.

What is a Base64 encoding table?

A Base64 encoding table maps 6-bit values to printable characters using A-Z, a-z, 0-9, plus + and /, with = used for padding when needed.

Base64 Encoder and Decoder Online

Q: What does this Base64 tool do?

This tool can encode plain text to Base64 and decode Base64 back into readable text directly in your browser.

Q: What is a simple Base64 example?

A common Base64 example is the word hello, which becomes aGVsbG8= after encoding.

Base64 encode and decode

All text stays in your browser. util.work does not store your plain text or Base64 text on the server.

Auto convert while typing

Plain Text

0 chars / 0 bytes

Base64 Text

0 chars / 0 bytes

What this Base64 tool does

This page lets you encode plain text to Base64 and decode Base64 back into readable text directly in your browser. It works as an online Base64 encoder and Base64 decoder for quick conversions without extra downloads or setup.

If you searched for terms like Base64 encoder, Base64 decoder, encode text to Base64, or decode Base64 online, this tool is built to give you a fast answer with a simple interface. It is also useful for searches such as decode Base64 to text, Base64 example, and Base64 encoding table.

What is Base64

Base64 is a text encoding scheme that turns data into a limited ASCII character set. Instead of sending raw binary bytes, Base64 represents the same information with letters, numbers, and a few symbols so it can move through systems that expect plain text.

Why Base64 is used

Base64 is used when data needs to travel safely through text-first formats such as JSON, XML, email bodies, HTTP headers, form payloads, or configuration files. It helps preserve content without depending on every system in the chain to support raw binary values.

When to use Base64 encoding

Base64 is commonly used when text-based systems need to carry data safely using ASCII characters. It often appears in APIs, tokens, embedded assets, configuration files, and transfer formats that do not handle raw binary data directly.

Encode and decode in your browser

This Base64 encoder and decoder runs in the browser, which makes it convenient for quick conversions during development, debugging, and data inspection. You can paste plain text, generate Base64 output, or paste Base64 and decode it back to text.

Base64 example

A simple Base64 example is the word hello, which becomes aGVsbG8= after encoding. The exact output is not meant for secrecy. It is simply a different text representation of the same underlying data.

Base64 encoding table

A Base64 encoding table maps 6-bit values to printable characters. The table starts with A-Z, continues with a-z, then 0-9, and ends with + and /. Padding with = may appear at the end when the input length does not align cleanly.

Range	Characters
0-25	`A-Z`
26-51	`a-z`
52-61	`0-9`
62	`+`
63	`/`
Padding	`=`

Common Base64 use cases

Common Base64 use cases include API payloads, data URIs, email attachments, JWT segments, embedded images, file transfer through text-only channels, and debugging serialized values during development. It is popular because it is simple, portable, and broadly supported.

Embedding small files or images inside text-based formats
Passing binary-like content through JSON or email safely
Inspecting JWT segments and debugging serialized payloads
Sharing data through systems that only accept plain text

What Base64 is not

Base64 is an encoding format, not encryption. It changes how data is represented, but it does not protect the underlying content. If you need secrecy or security, encryption is a separate step.