Encode Files
Base64 Converter

Convert any file (images, documents, binary) into a Base64 data URI string instantly and securely in your browser.

Raw URI Output
Bulk File Encoder
Instant Client-Side
Easy Copy/Download

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Base64 Output (Raw URI)

Select an image to view output

Secure and Efficient Encoding

Use Base64 to streamline web development and ensure reliable data transfer.

Inlining Assets

Base64 encoding allows you to embed binary assets (like images) directly into CSS or HTML files, eliminating external HTTP requests and speeding up page load times.

Data Integrity

Base64 is a robust encoding scheme that ensures binary data remains intact when transferred across systems designed to handle only text, such as email protocols or certain APIs.

Any File Type

This tool is not limited to images; it can convert any file—PDFs, audio, text, or binary data—into a viewable, copyable, and downloadable Base64 string.

Privacy Focus

All file processing and encoding happen 100% client-side. Your files are never uploaded to a server, ensuring absolute privacy and fast results.

Data Utilities

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Quick Answers

Frequently Asked Questions (FAQs)

Understand the purpose, security, and impact of using Base64 encoding.

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Base64 is a binary-to-text encoding scheme that represents binary data (like images or files) in an ASCII string format. It is commonly used to embed data directly into code or transmit data reliably over text-based protocols.
No. Base64 encoding actually increases the size of the data by about 33%. Its purpose is not compression, but rather to safely encode binary information into a text format that can be handled universally.
It is best used for small, critical images (like icons or tiny CSS sprites). Using it for large images significantly increases file size and reduces caching efficiency.
Yes. Base64 is an encoding, not encryption. The original binary file can be perfectly reconstructed from the Base64 string, making the process fully reversible.
The conversion is done entirely by your browser's JavaScript engine on your local machine. Since there is no upload or download delay, the process is instantaneous upon file selection.