Base64 Encoder & Decoder

Result:

FREE ONLINE BASE64 ENCODER & DECODER

Convert, encode, and decode text or files instantly with our free Base64 Encoder & Decoder tool. Easily switch between plain text and Base64-encoded data in seconds — no software to install, no registration required.

What is Base64 Encoding and Decoding?

Base64 is a method of converting binary data (like images, documents or other file types) into a text format using a set of 64 printable characters. This enables safe transfer of data through systems that only support text. Wikipedia+1
Decoding reverses the process, converting the Base64 text back into its original binary or text form.

Why Use Our Online Base64 Encoder & Decoder?

Here’s why our tool makes a smart choice for developers, designers and everyday users alike:

  • ✅ Fast & Instant Conversion: Encode or decode in seconds — paste your text or upload a file and get your result immediately.

  • 🔧 Dual-Mode Functionality: Use either the encoder mode (plaintext → Base64) or decoder mode (Base64 → plaintext/file).

  • 🌐 Browser-Based & No Installation Needed: Works on any device with a modern browser — desktop, tablet or mobile.

  • 🔐 Private & Secure: Your data remains in your browser — nothing is uploaded to a server unless you choose so.

  • 🎯 Wide Usage Scope: Perfect for embedding images in HTML/CSS, transferring binary data via APIs, or storing small files safely in text-friendly formats. Medium+1

How to Use the Base64 Encoder & Decoder

  1. Choose whether you want to Encode (plaintext or file → Base64) or Decode (Base64 text → original data).

  2. Paste your text or upload a file.

  3. Click the Convert button.

  4. View or download the resulting data. Copy it for use in your project.
    That’s it — simple and efficient.

Common Use Cases for Base64 Conversion

  • 🔗 Embedding assets: Convert images or fonts into Base64 strings for inline use in HTML/CSS.

  • 📂 Binary transfer: Send files via JSON or email by converting them to Base64 so they pass through text-only channels. Stack Overflow+1

  • 💾 Safe storage in text fields: Store small binary blobs in database text fields without corruption.

  • 🧪 Testing & debugging: Encode or decode data to inspect payloads, tokens or API responses.

Things to Keep in Mind

  • ⚠️ Size Increase: Encoding to Base64 typically adds about a one-third file size overhead. Medium

  • 🔍 Not encryption: Base64 is not a security measure — anyone can decode it back to original form. Information Security Stack Exchange

  • 📱 Best for small files: For large files, consider dedicated binary handling rather than inline Base64.

Start Converting with Our Free Tool Now

Whether you need to convert text, upload a file, or decode Base64 strings for development, our Free Online Base64 Encoder & Decoder tool makes it quick, easy and safe. No sign-up, no software — just instant conversion at your fingertips.