Base64 Decode and Encode - Online Tool

File to Base64

When you need to insert binary data into text documents like HTML, JSON, or XML, converting files to Base64 provides a simple and effective solution. By encoding files as Base64, you can ensure the smooth integration of data without the risk of corrupting the text due to binary characters.Our online 'File to Base64' encoder offers a convenient way to convert files into Base64 format. This user-friendly tool eliminates the need for complex software installations or programming skills. With just a few easy steps, you can convert your files and effortlessly embed them into various text-based document formats.Please be aware that our 'File to Base64' encoder supports files of any type, including images, audio files, documents, and more, with a maximum file size of 50 MB. If you are looking for the reverse process, check Base64 to File

How to convert file to Base64 online

  1. Select a local file from your computer.
  2. If necessary, select the desired output format.
  3. Press the “Encode file to Base64” button.
  4. Download or copy the result from the “Base64” field.

What is File

A 'file' refers to a named collection of data or information that is stored and organized on a computer or storage device. It can contain various types of data, such as text, images, audio, video, or program instructions. Files are essential for organizing and managing data in a structured manner.

Here is an example table showcasing different file formats:

File Format Description
TXT Plain text file format containing unformatted textual data
JPG/JPEG JPEG image file format, commonly used for photographs
PDF Portable Document Format used for preserving document integrity
MP3 MPEG Audio Layer 3 format, widely used for music and audio
DOCX Microsoft Word document format
XLSX Microsoft Excel spreadsheet format
PPTX Microsoft PowerPoint presentation format
ZIP Compressed file format used for bundling multiple files
HTML Hypertext Markup Language used for web pages
MP4 MPEG-4 Part 14 container format designed for video playback

The above table provides examples of various file formats representing different types of data. Each format serves specific purposes and may require specific software or applications to access and manipulate the data they contain.

Please note that the examples listed in the table are just a small fraction of the countless file formats available across different industries and applications.

Output formats

If you do not know what output format you need, check the following examples to see how will look the result of the same Base64-encoded file formatted in each of the available formats (as an example file I use a gzipped text file):

Plain text:
Data URI:
HTML Hyperlink:
<a href="data:application/gzip;base64,H4sICPsdulsCAHJlYWRtZS50eHQAC0/NSc7PTVUoyVdISixONTPRSy8tKlUEAPCdUNYXAAAA"></a>
JavaScript Popup:
window.onclick = function () {"data:application/gzip;base64,H4sICPsdulsCAHJlYWRtZS50eHQAC0/NSc7PTVUoyVdISixONTPRSy8tKlUEAPCdUNYXAAAA");
  "file": {
    "mime": "application/gzip",
<?xml version="1.0" encoding="UTF-8"?>
  <file mime="application/gzip">H4sICPsdulsCAHJlYWRtZS50eHQAC0/NSc7PTVUoyVdISixONTPRSy8tKlUEAPCdUNYXAAAA</file>

If I missed an important output format for Base64-encoded files, please let me know — I would love to implement it.

Convert Files to Base64: Seamlessly Encode and Embed Data in Text Documents

Converting files to Base64 is a crucial process that enables the smooth encoding and embedding of binary data into text documents. It provides a solution for preserving data integrity while avoiding any issues caused by binary characters. Whether you're working with HTML, JSON, XML, or other text-based formats, our 'File to Base64' converter offers a user-friendly online tool to simplify the process.

Our online 'File to Base64' encoder allows you to convert various file types into Base64 format effortlessly. This eliminates the need for complex software installations or coding expertise. With just a few simple steps, you can encode your files and securely embed them into your desired text documents.

The process is straightforward: select the file you wish to convert, upload it to our online encoder, and let our tool handle the conversion. The file is processed securely on our server to ensure data privacy and integrity throughout the process.

After the conversion is complete, you will receive a Base64-encoded string representing your file. This encoded string preserves the original data in a text-friendly format. You can easily embed this Base64 string within your chosen text document format, including HTML, JSON, XML, and more.

Converting files to Base64 is crucial because attempting to insert binary data directly into a text document may corrupt the data or cause syntax errors. By converting files to Base64, you can ensure the seamless integration of binary data into text documents without compromising file integrity.

It's important to note that the size of Base64-encoded files increases by approximately 33% due to the nature of the encoding process. However, this slight increase in file size is a trade-off for the convenience and compatibility it provides in embedding files within text documents.

Our 'File to Base64' encoder supports a wide range of file types and has a maximum file size limit of 50 MB, ensuring flexibility and compatibility with various file formats.

Experience the ease and efficiency of encoding files to Base64 with our online converter. Simplify your workflow, ensure compatibility, and seamlessly embed binary data into text documents without any concerns about corrupting the data or disrupting the document's syntax.