Base64 Encoder / Decoder
Encode & Decode Base64 Strings, Images, and PDFs Instantly.
Quickly encode text or files into Base64 format or decode Base64 back into readable text or files. Our free Base64 Encoder / Decoder supports text, images and PDFs ideal for developers, designers, API testing and data transfer.
Select Mode
Input Type
Input Text
Base64 Output
About Base64 Encoding
Base64 is a binary-to-text encoding scheme used to transmit binary data over text-based protocols.
Common in email attachments, embedding images in HTML/CSS, and storing files in JSON.
Perfect for encoding images and PDFs for Data URLs.
Converts binary data into ASCII characters for safe transmission across systems.
Base64 is NOT encryption — it's only encoding.
Encoded data is approx. 33% larger than original.
About the Online Text Cleaner
The Base64 Encoder / Decoder allows you to convert text or binary files into Base64 encoded strings and decode them back with ease. Whether you’re working with APIs, embedding images or handling file uploads, this tool simplifies Base64 conversions instantly.
It works entirely online, requires no signup and processes your data in real time.
What Is Base64 Encoding?
Base64 is a binary-to-text encoding method used to safely transmit binary data over text-based systems. It converts binary data into ASCII characters, making it compatible with email systems, JSON payloads, HTML and CSS.
Base64 encoding is commonly used for:
- Email attachments
- Embedding images using Data URLs
- API requests and responses
- Storing files in JSON or XML
- Transferring data between systems
Select the desired mode:
- Encode (Text/File → Base64)
- Decode (Base64 → Text/File)
Choose the input type:
- Text input
- File upload (images, PDFs, etc.)
Enter your text or upload a file.
The Base64 output or decoded result will be generated instantly.
Copy or download the result as needed.
Copy or download the result as needed.