Base64 Encoder & Decoder Online
Encode & decode Base64 instantly with our free online tool. Secure, fast, and easy to use. No installation required. Try it now.
Base64 Encoder/Decoder
🧰 Text & Code Online Tools
Base64 Encode & base64 decoder Tool
Welcome to our Base64 Encode and Decode tool, a simple online utility that lets you quickly convert your text to Base64 encoding and decode Base64 back to human-readable format. Encode or decode your data easily without any hassle.
This free Base64 Encoder & Decoder tool allows you to convert any text into Base64 format instantly. Base64 encoding is used to safely transmit data, store information, or embed text inside HTML, CSS, and JSON files without issues.
You can also decode Base64 back into normal, readable text using the same tool. Everything works directly in your browser with no data saved on any server, making it fast and secure.
Whether you are a developer, webmaster, security researcher, or just someone who needs a simple Base64 converter, this tool provides a clean interface and instant results. Use the encoder to transform text into Base64, or use the decoder to extract the original message with one click.
Why Use Base64?
Base64 encoding is widely used to handle binary data, especially when data needs to be stored or transferred over text-based systems. This encoding ensures that data remains intact during transport without modification. Common applications include email via MIME, storing data in XML or JSON, and more.
Advanced Options
- Character Set: For textual data, specify the character set used (usually UTF-8). Auto-detect options are available if unsure.
- Decode Each Line: Decode multiple independent Base64 entries separated by line breaks.
- Live Mode: Enable instant decoding in your browser without sending data to our servers (supports UTF-8 only).
Safe and Secure
All communications are encrypted using SSL (HTTPS). Uploaded files are deleted immediately after processing, and downloaded results are removed after the first download or 15 minutes of inactivity. We never inspect or store your data.
Completely Free
This Base64 tool is free to use online. No software download is required for simple encoding and decoding tasks.
Understanding Base64 Encoding
Base64 encodes binary data into a set of 64 printable characters, ensuring safe transport across systems that may not handle raw binary. The character set usually includes A-Z, a-z, 0-9, plus + and /. Variants such as Base64URL use - and _.
Example
Thomas Hobbes’s quote from Leviathan:
“Man is distinguished, not only by his reason, but …”
Base64 encoding of “Man” in ASCII:
| Text | ASCII | Bit Pattern | Base64 Index | Base64 Encoded |
|---|---|---|---|---|
| M | 77 | 01001101 | 19 | T |
| a | 97 | 01100001 | 22 | W |
| n | 110 | 01101110 | 5 | F |
| (padding) | – | – | 46 | u |
FAQ
🔸 Q1: What is Base64 encoding?
A: Base64 is a method used to convert binary data into a text format using 64 characters.
🔸 Q2: Is Base64 secure?
A: No, Base64 is not encryption. It only encodes data, not protects it.
🔸 Q3: Can Base64 be decoded?
A: Yes, Base64 can be easily decoded back into normal text.
🔸 Q4: Does this tool store my data?
A: No, all encoding and decoding happen in your browser only.