Base64 encoder and decoder
Encode or decode a Base64 value without leaving the page.
Base64 Encode/Decode
Encode text to Base64 or decode Base64 strings back to plain text. Perfect for data embedding, API authentication, and data transmission.
How It Works
Paste your text or Base64 string in the input area
The tool auto-detects whether to encode or decode
Copy the result when it is ready
Features
Frequently Asked Questions
Is this tool really free?
Yes, 100% free with no hidden costs or limits. All processing happens.
Do I need an account?
No. The tool is free to use with no sign-up, no watermark and no limits.
What is Base64?
Base64 is an encoding scheme that converts binary data to ASCII text. It's commonly used for embedding images in HTML/CSS or transmitting data over text-based protocols.
Base64 Encode Decode Online, The Complete Guide
Need to Base64 encode decode online? Our free Base64 converter lets you encode text to Base64 or decode Base64 strings instantly, no software installation, no signup, and completely private processing.
What is Base64 Encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in ASCII string format. It is commonly used to encode string to Base64 for embedding images in HTML/CSS, encoding email attachments, and transmitting binary data.
How to Use the Base64 Encoder Decoder
Using our Base64 encoder decoder is simple: paste your text in the input field, click Encode or Decode, and get the output instantly. The online Base64 tool handles standard and URL-safe Base64.
Decode Base64 Text Instantly
Need to decode Base64 text back to its original form? Paste the Base64 string and click Decode. Our Base64 converter free tool detects encoding errors to help you troubleshoot malformed strings.
Tips for Working with Base64
- Base64 encoding increases data size by approximately 33%
- Use URL-safe Base64 for web applications
- Free to use, with no account and no limits
- Copy output with one click using the copy button
Related Tools
More than a quick base64 encoder and decoder.
Base64 turns bytes into a text-safe representation. Developers commonly use it when a value must travel through a text-only field, a data URL, or a configuration file. It is an encoding format, not encryption, so it should never be used to protect a secret.
Paste plain text to encode it, or a Base64 value to decode it. Auto mode makes a sensible choice, while the explicit controls let you choose the direction when a short value could be interpreted either way.
How to use the base64 encoder and decoder.
Start with the tool above. There is no account step between you and the result.
- 01
Paste the text or Base64 value.
- 02
Choose Auto, Encode, or Decode.
- 03
Copy the updated result into your project.
Base64 encoder and decoder answers.
Useful context before you use the result somewhere important.
Is Base64 encryption?
No. Base64 is reversible encoding and does not protect confidential information.
Why does Base64 look longer?
Encoding uses printable characters to represent binary data, so the result is usually larger than the source.
Can I use this without an account?
Yes. The encoder and decoder are available without signing in.
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