Base64 Encode Decode Online - Free Base64 Converter

Base64 Encode / Decode Tool

Encode text to Base64 or decode Base64 back to readable text instantly. Useful for APIs, tokens, data strings, configuration values and development tasks.

🔒 Processed in your browser

Input Paste text or Base64 string

Base64 Options

Default Action Choose the action used by the main process button.

URL-safe Base64 Use - and _ instead of + and / for URL-safe output. Remove padding Remove = padding characters from encoded output. Wrap lines Wrap encoded output every 76 characters. Auto process Update result automatically while typing or pasting.

Status will appear here.

Result No result yet

0 Input Chars

0 Result Chars

0 Input Bytes

0 Result Bytes

Base64 Summary

Status Waiting for input

Current action Encode to Base64

Size change 0

Output lines 0

Use Encode when you want to convert readable text into Base64.

Use Decode when you want to convert Base64 back into readable text.

Your data is processed locally in your browser.

About This Tool

Base64 Encode / Decode is a free online developer tool that helps you convert text to Base64 and decode Base64 strings back to readable text.

You can use it for API data, tokens, configuration values, encoded strings, development testing and small data conversion tasks. The tool supports UTF-8 text, URL-safe Base64, optional padding removal and line wrapping.

This tool is useful for developers, API testers, students, system administrators and anyone working with encoded text.

How to Use Base64 Encode / Decode

1. Paste your text or Base64 string into the input box.
2. Choose whether you want to encode text to Base64 or decode Base64 to text.
3. Enable URL-safe Base64 if you need Base64 that is safer for URLs.
4. Click Process, Encode or Decode.
5. Copy the result or move it back to the input box.

Privacy Note: This Base64 Encode / Decode tool works directly in your browser using JavaScript. Your text does not need to be uploaded to our server.

Frequently Asked Questions

Is this Base64 Encode / Decode tool free?

Yes. Paste a Base64 string, choose Decode Base64 and the tool will convert it back to readable text.

Does it support URL-safe Base64?

Yes. You can enable URL-safe Base64 to use - and _ instead of + and /.

Does this tool upload my text to the server?

No. This tool processes your text directly in your browser using JavaScript.