# Base64 Converter

Encode and decode data to/from Base64 format with URL-safe options

> Canonical page: https://elysiatools.com/en/tools/base64-converter

- **Category:** Format Conversion

- **Keywords:** base64, encode, decode, convert, transform, url-safe, base64 converter

## Overview

The Base64 Converter is a reliable utility designed to quickly encode plain text into Base64 format or decode existing Base64 strings back into readable text, supporting specialized requirements like URL-safe encoding and character set selection.

## Inputs

- **Input Text** (textarea): Enter text to encode/decode...
- **Operation** (select)
- **URL-Safe Encoding** (checkbox)
- **Add Line Breaks (76 chars per line)** (checkbox)
- **Character Encoding** (select)

## When to use

- When you need to embed binary data or text strings into URLs or HTML without character corruption.
- When you are debugging API responses that return Base64-encoded payloads.
- When you need to prepare data for systems that require Base64-encoded authentication headers or configuration files.

## How it works

- Paste your source text or Base64 string into the input area.
- Select your desired operation: 'Encode' to transform text to Base64, or 'Decode' to revert it.
- Toggle optional settings like 'URL-Safe' for web compatibility or 'Add Line Breaks' for readability.
- Click the convert button to instantly generate your processed output.

## Use cases

- Encoding sensitive configuration strings for use in environment variables.
- Decoding Base64-encoded API responses to verify data integrity during development.
- Formatting data for inclusion in data URIs for CSS or HTML images.

## Frequently asked questions

### What is Base64 encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format, commonly used to transmit data over media that only support text.

### What does the URL-Safe option do?

Standard Base64 uses '+' and '/' characters, which can cause issues in URLs. The URL-safe option replaces these with '-' and '_' to ensure the string remains valid in web addresses.

### Can I decode any Base64 string?

Yes, as long as the string is valid Base64. If the input is malformed or contains invalid characters, the tool will notify you of the error.

### Does this tool support different character encodings?

Yes, you can choose between UTF-8 and ASCII to ensure the character mapping matches your specific data requirements.

### Is my data sent to a server?

This tool performs the conversion locally in your browser, ensuring your data remains private and is not transmitted to external servers.

## Related tools

- [ASCII85 Converter](https://elysiatools.com/en/tools/ascii85-converter): Encode and decode text to/from ASCII85 format (Adobe version)
- [Base32 Converter](https://elysiatools.com/en/tools/base32-converter): Encode and decode text to/from Base32 format with multiple variants
- [Base45 Converter](https://elysiatools.com/en/tools/base45-converter): Encode and decode text to/from Base45 format (RFC 9285)
- [Base58 Converter](https://elysiatools.com/en/tools/base58-converter): Encode and decode text to/from Base58 format with Bitcoin and Ripple variants
- [Base62 Converter](https://elysiatools.com/en/tools/base62-converter): Encode and decode text to/from Base62 format (0-9, A-Z, a-z)
- [Base91 Converter](https://elysiatools.com/en/tools/base91-converter): Encode and decode text to/from Base91 format (ascii+basE91 algorithm)
- [Base64 Encoder/Decoder](https://elysiatools.com/en/tools/base64-encoder): Encode and decode Base64 strings
- [Base64 to Image Converter](https://elysiatools.com/en/tools/base64-to-image): Convert Base64 encoded images back to image files with support for various formats

## Samples

- [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
- [Hex/Unicode Encoding Format Samples](https://elysiatools.com/en/samples/text-hex-unicode-formats): Examples of hex (\xXX) and unicode (\uXXXX) escape sequence encoding formats
- [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion
- [Android Image Processing Kotlin Samples](https://elysiatools.com/en/samples/android-image-processing-kotlin): Android Kotlin image processing examples including reading/saving images, scaling, and format conversion

## Related content

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- [Binary Payload Encoding, Serialization, and Round-Trip Verification](https://elysiatools.com/en/hubs/binary-payload-serialization): Convert structured data between binary serialization formats, text transport encodings, and escaped representations, then verify fields and bytes through a controlled round trip.