Base64 / Hex / Binary Multi-Coder

Convert text or binary files to Base64, Hexadecimal, Binary representation and back.

Processing... 0%

Reading input stream

Parsing binary chunks

Aligning byte boundaries

Done

Result

Need to convert an image to a Base64 data URI for HTML/CSS embedding? Or do you need to decode a raw hexadecimal dump back into its original file? This multi-coder does it all offline.

Since all calculations are executed locally via JavaScript within your browser tab, your data never leaves your computer. This provides total safety for confidential configurations, API credentials, or private documents.

The tool features an interactive byte-to-bit alignment visualization that guides students and developers through base64 algorithms, alongside dynamic rendering support for decoded media files.

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Executed in Browser

Your files and inputs never leave this device. Processing runs completely offline. 100% Secure.

Accepted Formats & Rules

Convert Plain Text or Files to Base64, Hexadecimal, or Binary.
Reconstruct files back from Base64 or Hex and download them.
Interactive bitwise visualization chart mapping characters to bytes.

Key Benefits

✓ Zero server leakage: All encoding and decoding runs fully inside your browser.

✓ Binary File Support: Drag & drop images, PDFs, or archive files to get instant byte code representation.

✓ Dynamic Previews: Play sound files, preview SVGs, and inspect image layouts instantly.

Use Cases

• Do you need to convert binary files like images or PDFs into Base64 strings for web embedding?
• Are you debugging network packets, hex dumps, or binary streams and need to decode them?
• Do you want to encode API keys or payloads into URL-safe Base64 format locally and securely?