File to Base64 | Free File Encoder Tool 2026

File to Base64: Encode Any File to Base64 String

Upload any file (image, PDF, document, zip, etc.) and get its Base64 encoded string. Perfect for embedding files in JSON, HTML, or API payloads.

📂 Click or drag file here

Choose any file (max 50MB)

Select a file to convert.

📊 Conversions: 0

★★★★★

🔒 SSL Secure✅ GDPR🚫 No Logs

📸 Live preview — Encode any file to Base64.

Why Convert Files to Base64?

Base64 encoding allows you to represent binary files as text, making them safe to embed in JSON, XML, HTML, or email bodies. Common use cases: embedding images in HTML emails, storing file contents in databases, sending files via REST APIs, and creating self‑contained HTML documents. Our File to Base64 converter supports any file type (PDF, images, documents, archives). The tool reads the file locally, encodes it to Base64, and returns a data URL (with MIME type) or a raw Base64 string. Large files up to 50MB are supported, though performance may vary.

📌 How to Use

Click the upload area or drag your file.
Click "Convert to Base64".
Copy the resulting Base64 string or data URL.

✨ Features

📁 Any file type supported

🔒 100% local (no upload)

📋 One-click copy

⚡ Fast encoding

📱 Mobile-friendly

🆓 Unlimited free

🔍 Most Searched Keywords

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⚙️ How It Works

The FileReader API reads the file as a data URL. The result includes the MIME type and Base64 data. You can copy the full data URL.

🎯 Benefits

✅ Embed files in JSON.
✅ Send files via APIs.
✅ Free and private.

🔗 Related Tools

❓ FAQ

❓ What's the size limit?
Up to 50MB (browser memory limit).

❓ Does it support all file types?
Yes, any file type works.

❓ Is it free?
Yes, forever.

File To Base64