Base64 Converter Online
Free online Base64 encoder and decoder. Convert text to Base64 and decode Base64 back to plain text instantly, both ways, all privately in your browser.
Encode text and data to Base64 or decode it back, right in your browser. Base64 is the standard way to carry binary data through text-only systems like JSON and email. New to it? Start with what Base64 encoding is and when to use it.
How to use Base64 Converter Online?
Enter or paste the text you want to encode or decode into the input box.
Choose whether to encode plain text into Base64 or decode Base64 back into text.
The result appears instantly in the output area.
Copy the encoded or decoded result for use wherever you need it.
Why use Base64 Converter Online?
- Encode and decode. Convert in both directions instantly, with the result ready to copy.
- For text and data. Handle strings, tokens, and snippets that need to travel as plain text.
- Nothing uploaded. Encoding and decoding happen locally, so sensitive data stays on your device.
Professional Features
Two-Way Conversion
Encode plain text to Base64 and decode Base64 back to text from a single tool.
Instant Results
See your encoded or decoded output immediately, with nothing to install.
Private & Free
Everything runs in your browser, so your data stays private and the tool is completely free.
Common Questions
Can I both encode and decode Base64?
Yes. The tool works in both directions, letting you encode text to Base64 and decode it back to plain text.
Is there a length limit?
No. You can convert text of any reasonable length completely free.
Is my data kept private?
Yes. All encoding and decoding happen locally in your browser, so your data is never uploaded.