Base64 Encode Decode
Free online Base64 Encode Decode tool.
About Base64 Encode Decode
Free online Base64 Encode Decode tool.
Base64 Encode Decode converts plain text into base64 data and back again without any server round trip. Type a message, a token or a chunk of source code, press encode, and the tool returns the standard base64 representation along with the URL-safe variant, while decode mode restores the original string immediately. It reports input and output lengths, flags padding problems, and warns you when the decoded bytes are not valid text, which saves time when you are repairing corrupt JSON payloads or embedding images in HTML. Developers rely on Base64 Encode Decode for API debugging, students use it to understand data encoding, and support teams paste suspicious strings to see what they hide. Everything runs locally in your browser, so confidential data stays private.
How to Use Base64 Encode Decode
- Enter or paste the text, data or value you want to encode or decode.
- Pick the format or mode from the available options.
- The output updates instantly.
- Copy the result with one click.
Key Features
- Supports the standard formats used across the web.
- Instant, local processing — no round trip to a server.
- Copy-ready output you can paste straight into your code or document.
Frequently Asked Questions
Is Base64 Encode Decode safe for confidential or personal data?
Yes. Encoding and decoding run entirely inside your browser, so the text you paste is never sent to a server, stored in a database or logged anywhere. That makes the tool suitable for tokens, internal messages and personal records, as long as you clear the box when you are finished on a shared computer. Remember that base64 is an encoding rather than encryption, anyone can decode it, so treat the output as readable text instead of a protected secret.
Is Base64 Encode Decode free to use?
Yes. Base64 Encode Decode is completely free with unlimited use — no account, download or payment required.
Is my data uploaded to a server?
No. Base64 Encode Decode runs entirely in your browser. Your inputs are never sent to our servers or stored anywhere.
Does Base64 Encode Decode work on mobile?
Yes. The interface is fully responsive and works in any modern browser on Android, iPhone, tablets and desktops.
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