Base64 is a method of encoding binary data (like images, files, or text) into ASCII characters so it can be safely transmitted over systems that only handle text. It is widely used in APIs, HTML, CSS, and email attachments.
Our Base64 Encoder & Decoder lets you:
- Convert text or files into Base64 (encode)
- Decode Base64 strings back into original format
- Handle images, JSON, and binary data
- Use it securely — no data leaves your browser
Why Use an Online Base64 Encoder & Decoder?
- ✅ No installations – Works directly in your browser
- ✅ Fast & reliable – Encode and decode instantly
- ✅ Secure – All processing is client-side, no server storage
- ✅ Free – No restrictions or hidden limits
👉 Try it here: Free Base64 Encoder & Decoder
Common Use Cases
- Embed images in HTML/CSS – Convert images to Base64 for inline embedding.
- API development – Encode binary data for safe transfer in JSON or XML.
- Email attachments – Many email systems use Base64 for attachments.
- Data recovery – Decode Base64 strings back into readable text or files.
How Our Base64 Tool is Different
Unlike many online tools, Bittools Base64 Encoder & Decoder is designed for developers:
- Speed → Instant conversion without lag
- Privacy → No server-side processing, 100% local
- Multi-format → Supports text, JSON, and images
- Simplicity → Clean, distraction-free interface
Example: Encoding & Decoding
Encoding text to Base64:
Input: Hello World Output: SGVsbG8gV29ybGQ=
Decoding Base64 back to text:
Input: SGVsbG8gV29ybGQ= Output: Hello World
Frequently Asked Questions
What is Base64 encoding?
Base64 encoding converts binary data into a string of ASCII characters, making it safe to transfer in text-based systems.
Is this Base64 encoder secure?
Yes. Everything runs locally in your browser. No data is uploaded or saved.
Can I decode Base64 images?
Yes. You can convert Base64 strings back into image files or display them in HTML.
Do I need to install anything?
No installation is required. This tool is free and works instantly in your browser.
Final Thoughts
Base64 encoding is a powerful way to safely transfer and embed data. Whether you’re working with APIs, images, or text files, our tool makes it simple.
👉 Try our free Online Base64 Encoder & Decoder today.