Free browser-based encoding tool

Base64 Encoder & Decoder

Encode normal text into Base64 or decode Base64 back into readable UTF-8 text. Use it for quick data conversion, testing, development, API work, configuration values, and safe text transfer.

Output

Ready
U0hCIFRvb2xCb3ggLSBGcmVlIGJyb3dzZXItYmFzZWQgdG9vbHM=

Encode and decode Base64 online

Base64 is a common encoding method used to represent binary or text data using readable characters. It is often used in APIs, web development, email systems, configuration files, authentication workflows, data URLs, JSON payloads, and testing tools. This Base64 encoder and decoder helps you quickly convert between plain UTF-8 text and Base64 text directly in your browser.

You can use this tool to encode normal text into Base64, decode Base64 back to readable text, create URL-safe Base64 strings, check whether a Base64 value is valid, and copy the result for development or documentation.

Text to Base64

Convert readable text, JSON, configuration values, notes, or short data strings into Base64.

Base64 to text

Decode Base64 strings back into readable UTF-8 text when the input is valid.

URL-safe Base64

Use URL-safe conversion where + and / are replaced for safer use in URLs and tokens.

Private workflow

The conversion is designed to run in your browser without account creation.

What is Base64 used for?

Base64 is useful when data needs to be transferred through systems that expect text. Developers often see Base64 in API responses, encoded credentials, email attachments, image data URLs, JWT parts, XML or JSON payloads, and application configuration values. Base64 does not encrypt data; it only encodes it into a different readable format.

Base64 is not encryption

A common mistake is thinking Base64 is secure encryption. It is not. Anyone can decode Base64 text back into the original value if they have the string. Do not use Base64 alone to protect passwords, secret keys, payment details, personal data, or confidential business information.

How to encode text to Base64

  1. Select Encode mode.
  2. Enter or paste the text you want to encode.
  3. Enable URL-safe Base64 if you need a URL-friendly output.
  4. Copy the encoded Base64 result.

How to decode Base64 to text

  1. Select Decode mode.
  2. Paste a valid Base64 string.
  3. Use URL-safe mode if the Base64 contains URL-safe characters.
  4. Copy the decoded readable text.

Common Base64 problems

Invalid characters

Base64 normally uses letters, numbers, +, /, and = padding. URL-safe Base64 may use - and _.

Missing padding

Some Base64 strings omit = padding. The decoder tries to normalize padding where possible.

Not encrypted

Base64 output can be decoded easily, so it should not be treated as a security layer.

Wrong mode

If decoding fails, check whether your input is regular Base64 or URL-safe Base64.

FAQ

Is this Base64 encoder free?

Yes. You can encode and decode Base64 text for free without creating an account.

Can I decode URL-safe Base64?

Yes. Enable URL-safe Base64 mode before decoding URL-safe strings.

Is Base64 secure?

No. Base64 is encoding, not encryption. Do not use it as a way to hide sensitive information.

Is my text uploaded?

The tool is designed to process text in your browser.