Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to readable text.
Overview
Encode plain text to Base64 and decode Base64 back to text. Useful for debugging payloads and data transport formats.
How to use
- Paste text or Base64 string.
- Choose encode or decode.
- Copy the result.
Examples
-
Encode
Input: hello
Output: aGVsbG8=
-
Decode
Input: eyJrZXkiOiAidmFsdWUifQ==
Output: {"key": "value"}
Notes
- Base64 is encoding, not encryption.
- Invalid padding may fail decoding.
- Check UTF-8 handling when non-ASCII text is involved.
FAQ
- Is Base64 secure?
- No. It only transforms representation.
- Why decode fails?
- Input may be corrupted, missing padding, or not Base64.
- Is data uploaded?
- No. Processing runs in browser.
Embed this tool
Paste this iframe into any HTML page to embed Base64 Encoder / Decoder on your site: