Base64 Encode / Decode
Encode or decode Base64 text and data URLs.
100% private — runs in your browser, no upload
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How to base64 encode / decode
- 1.Paste text or Base64 into the box above.
- 2.Choose encode or decode.
- 3.The result appears instantly.
- 4.Copy it.
Frequently asked questions
- Is my input uploaded?
- No — encoding and decoding happen in your browser.
- What is Base64 used for?
- Safely representing binary or text data as ASCII — common in data URLs, tokens and email attachments.
- Can it handle data URLs?
- Yes — encode to or decode from data-URL format.
- Does Base64 encrypt my data?
- No — it's encoding, not encryption. Anyone can decode it, so don't treat it as a secret.