Base64 Encoder/Decoder

This tool allows you to encode/decode text or convert Base64 encoded strings to images (JPG, PNG, GIF) or PDF files.

encode Text

decode Text

image

pdf

About This Tool

NinjaFunction's Base64 Converter is a powerful online tool designed to simplify working with Base64-encoded data. Whether you need to encode text into Base64 for secure transmission, decode Base64 strings back to readable text, or convert images (JPG, PNG, GIF) and PDF files to/from Base64 format, our tool provides a seamless solution. With an intuitive interface, you can quickly paste your text, upload files via drag-and-drop, preview results before downloading, and export converted data with just one click. Perfect for developers, designers, and anyone working with data encoding, our converter works entirely in your browser—no server uploads required, ensuring fast processing and complete privacy.

🔑 How to Use

🔹 Step 1: Choose Conversion Type

Select what you want to do:

Encode Text → Convert plain text to Base64
Decode Text → Convert Base64 back to readable text
Image → Convert between Base64 and images (JPG, PNG, GIF)
PDF → Convert between Base64 and PDF files

🔹 Step 2: Input Your Data

Option A: For Text (Encode/Decode)

Paste your text or Base64 string in the text box.
Encode: Enter normal text → Get Base64 output
Decode: Enter Base64 → Get original text

Option B: For Images/PDFs

Upload a file (drag & drop or click to browse).
Supported formats: JPG, PNG, GIF, PDF
The tool will automatically convert it to Base64.

🔹 Step 3: Preview (Optional)

Click the "Preview" button to see the result before downloading.
For images, you'll see a preview.
For PDFs, you'll see a confirmation message.

🔹 Step 4: Download the Result

Click "Download" to save the output.
Text → .txt file
Image → .jpg, .png, or .gif
PDF → .pdf file

🔹 Step 5: Clear & Reset (Optional)

Click "Clear" to reset the tool and start over.

💡 Pro Tips

✔ Drag & Drop – Quickly upload files by dragging them into the box.
✔ Copy with One Click – Use the 📋 Copy button to copy Base64 results.
✔ Works Offline – Once loaded, the tool doesn't need internet to function.