Base64 Encoder & Decoder

Convert text, UTF-8 strings, and local binary files into Base64 format, or decode Base64 back to original files.

File to Base64 Data URI

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Click or Drag & Drop Any File Here

Supports Images (PNG, JPG, SVG, WebP), Audio (MP3, WAV), PDF, and documents up to 25 MB

Preview

What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format by translating it into a radix-64 representation. It is widely used for sending email attachments via MIME, embedding image assets directly inside HTML/CSS files without separate HTTP requests, and storing complex data inside cookies.

Frequently asked questions

What does Base64 Encoder & Decoder do?

Encode and decode text, UTF-8 unicode strings, and binary files (images, audio, PDF) to Base64. Reconstruct files from Base64 with URL-safe option.

How do I use Base64 Encoder & Decoder?

Open Base64 Encoder & Decoder, enter or select the input requested by the tool, and use its controls to see the result.

Where can I find tools related to Base64 Encoder & Decoder?

Use the related tools below to explore more Developer & Code tools.

About the author

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We maintain this developer & code tool and its usage guide.