Base64 Encode / Decode

Encode & Decode

Encode and decode Base64 strings — supports text and file encoding

EncodeDecode

Text Input

0 chars

What is Base64 Encode / Decode?

The Base64 Encode / Decode tool is a simple but essential utility for developers to convert plain text into Base64 encoded strings, and vice versa. It is widely used for encoding data in URLs, APIs, and basic authentication.

How to Use Base64 Encode / Decode

Select Mode

Choose whether you want to 'Encode' text to Base64 or 'Decode' Base64 to plain text.

Input Data

Type or paste your text or Base64 string into the input area.

Instant Conversion

The converted output will appear instantly as you type.

Copy Output

Click the copy button to grab the result for your code.

Key Features

Real-time, as-you-type encoding and decoding

Handles standard text and special characters (UTF-8 support)

Clean, distraction-free user interface

One-click copy to clipboard functionality

Client-side processing for complete privacy

Tips & Best Practices

1
Use Base64 encoding to safely pass complex strings or JSON objects via URL parameters.
2
Base64 is an encoding scheme, not encryption. Do not use it to hide sensitive data like passwords.
3
Use this tool to quickly inspect Base64-encoded strings found in API responses.

Why Use Our Online Base64 Encode / Decode?

Designed for speed, privacy, and precision. All operations occur seamlessly right inside your browser, ensuring your files and private data never touch remote servers. Enjoy lightning-fast processing with zero software installation required.

100% FreeNo subscriptions

Private & SecureLocal client processing

Instant ResultsNo waiting time

Mobile FriendlyWorks on all devices

Frequently Asked Questions

Is Base64 considered secure encryption?

No, Base64 is merely an encoding format designed to represent binary data in an ASCII string format. It offers no cryptographic security.

Can I encode files like images?

This specific tool is optimized for text strings. While images can be Base64 encoded, this interface is designed for text inputs.

Why did decoding my Base64 string produce weird characters?

If the original data before encoding was binary data (like an image or PDF) rather than UTF-8 text, decoding it as text will result in unreadable characters.

Does this tool support URL-safe Base64?

Currently, it processes standard Base64. For URL-safe variants, you may need to manually replace '+' with '-' and '/' with '_'.

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