Base64 Encoder & Decoder
Free

Result

The converted text will appear here

Paste text to encode, or Base64 to read it back.

Free Base64 Encoder & Decoder

Convert text to Base64 and back locally, with any language handled correctly.

How it works

Text as safe characters

For tokens, config values and debugging.

  1. 1

    Pick a direction

    Encode ordinary text, or decode a Base64 string back into words.

  2. 2

    Paste the value

    Any language is handled correctly: the text is converted to UTF-8 first, so accents and non-Latin scripts survive.

  3. 3

    Copy the result

    Copy it or save it as a .txt file.

Keep going

More free browser tools on Nano Banana Lab.

FAQ

No. It is an encoding, not a secret: anyone can decode it in a second. Never use it to hide passwords.

Because it was encoded without UTF-8. This tool always converts to UTF-8 first, so non-Latin text comes back intact.

When binary or unusual characters have to travel through a channel that only accepts plain text — headers, JSON fields, data URLs.

No. Both directions run in your browser.

Encode your first text

Paste it and get Base64 back.

Encode text