Encode text and files into Base64 or decode Base64 strings back into readable text. A simple, fast and free online Base64 converter that works directly in your browser.
Encode a file into Base64
Select an image, document or other file from your device.
Your data is processed locally in your browser. Files and text are not uploaded to our server.
Base64 is a way to represent data using ordinary text characters. It is commonly used when information needs to pass through systems that are designed to handle text rather than raw binary data. A Base64 encoder converts regular text or supported file data into a Base64 string, while a decoder turns that string back into its original form.
Developers often come across Base64 when working with APIs, email attachments, web applications, and data transfer. For example, you might need to encode a value before sending it to an API or decode a string received from another application. This free online Base64 encoder and decoder makes both tasks simple, right in your browser.
Turn regular text or supported files into Base64 encoded data.
Convert an existing Base64 string back into readable text or its original file data.
Use URL-safe encoding when Base64 data needs to be included in links or URL parameters.
Encode or decode data online without installing additional software.
Select Encode to Base64 or Decode Base64, depending on what you need to do.
Type your text or paste an existing Base64 string into the input field.
Choose a file from your device if you want to encode file data instead of plain text.
Enable this option if your project needs URL-safe Base64 output.
Click the Encode or Decode button to process your data.
Copy the result to your clipboard or download it as a text file.
Base64 is useful in many everyday development tasks, especially when applications need to move binary data through text-based systems. Here are a few situations where you might need it.
Convert image data into Base64 strings to embed small images directly into HTML, CSS, or other web resources.
Encode binary data when working with APIs that expect Base64 values in their requests or responses.
Represent attachments and other file data in text-based email formats such as MIME.
Send binary content through systems or protocols that are better suited to handling text.
Encode username and password combinations when testing HTTP Basic Authentication headers.
Encode sample values or decode received strings while debugging applications and testing data formats.
Yes. This online Base64 encoder and decoder is free to use without registration.
Yes. Select Decode Base64, paste your encoded string and click the decode button to convert it back into readable text.
No. Base64 is an encoding method, not encryption. Anyone can decode a Base64 string, so avoid using it to protect sensitive information.
Yes. Use the file upload option to convert an image or another file into a Base64 string.
URL-safe Base64 replaces plus and slash characters with hyphen and underscore characters. It is useful when encoded data needs to be included in URLs.
No. Text conversion and file reading happen locally in your browser. Your data is not sent to our server.
Whether you are working with text, files, APIs or web development projects, this free Base64 converter makes encoding and decoding simple. Convert your data in a few clicks directly from your browser.