🔄 File to Base64 Converter

Convert files to Base64 encoding and decode Base64 back to files

Drop your file here or click to browse
Any file type supported - Max 5MB
File Information
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File Name
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File Size
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File Type
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Base64 Size
File Preview
Base64 Output
Actions
Decode Base64 to File

🔐 Complete Guide to File to Base64 Converter

Convert any file to Base64 encoding - free online encoder

A File to Base64 Converter is an essential tool for encoding files into Base64 format. Whether you need to embed images in HTML/CSS, send files via JSON APIs, or store binary data as text, our online converter provides instant encoding right in your browser.

🎯 What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that converts binary data into ASCII text format. It's commonly used to embed images in HTML/CSS, transmit data over text-based protocols, and store binary data in databases or JSON files. Base64 encoded data is safe for transmission and storage in text-only systems.

💡 Why Use Base64 Encoding?

Our Base64 converter offers several advantages: works entirely in your browser (no upload to servers), supports all file types (images, documents, audio, video), instant encoding, copy to clipboard, download as text file, completely free, no file size limits, and maintains data integrity. Perfect for any Base64 encoding needs!

🔧 How to Convert File to Base64

Step 1: Click "Choose File" and select any file from your device.

Step 2: The file will be instantly encoded to Base64 format.

Step 3: View the Base64 string in the output area.

Step 4: Copy the Base64 string to clipboard or download as a text file.

✨ Common Uses for Base64 Encoding

Embed Images in HTML/CSS: Convert images to Base64 and embed directly in HTML or CSS files without external image files.

API Data Transfer: Send binary files through JSON APIs that only support text data.

Email Attachments: Encode files for MIME email attachments in Base64 format.

Data URIs: Create data URIs for inline images, fonts, or other resources in web applications.

Database Storage: Store binary files as text in databases that don't support binary data types.

❓ Frequently Asked Questions (FAQ)

Is my file uploaded to a server?
No! All encoding happens entirely in your browser using JavaScript. Your files never leave your device, ensuring complete privacy and security.
What file types can I encode?
You can encode any file type - images (PNG, JPG, GIF, SVG), documents (PDF, DOC, TXT), audio, video, or any other binary file. Base64 encoding works with all file formats.
Why is the Base64 string so long?
Base64 encoding increases file size by approximately 33%. This is because it represents binary data using only text characters, which requires more space than the original binary format.
Can I decode Base64 back to a file?
Yes! Base64 encoding is reversible. You can use a Base64 decoder tool to convert the encoded string back to the original file format.