Base64 Encoder / Decoder
Encode Unicode text or files to Base64 and decode it locally. It is fast, free, and designed for everyday development work.
🔒Private by design. Nothing is uploaded—this tool runs entirely in your browser.
How to use this tool
- Paste or type the content you want to process in the input area.
- Add the second input or options shown for this tool, when required.
- Select “Encode” to process everything locally in your browser.
- Check the result carefully, then use the copy button to save it.
How Base64 Encoder / Decoder works
Base64 represents binary bytes using a restricted set of printable characters. Developers encounter it in data URLs, email attachments, API payloads, and configuration values where raw binary content cannot be transported directly.
Encoding converts text into bytes and maps those bytes to Base64 characters. Decoding reverses that representation back to readable text when the bytes contain valid text data. Both operations run inside the browser.
Base64 is encoding, not encryption, and anyone can decode it. It also increases data size by roughly one third. Never use it to protect secrets, and verify the expected character encoding when decoded text looks corrupted.
Frequently asked questions
What does Base64 Encoder / Decoder do?
Encode Unicode text or files to Base64 and decode it locally.
Is Base64 Encoder / Decoder free?
Yes. You can use the complete tool without an account, subscription, or usage limit.
Is my input uploaded anywhere?
No. The tool processes your input inside the current browser tab and does not send editor content to a Toolsvanta processing server.
Does it work on mobile?
Yes. The input, controls, and results adapt to smaller screens, although larger code or data samples are usually easier to inspect on desktop.
Can I use the result in a commercial project?
Yes. You may use the result in personal or commercial work. Always review and test important output before deploying it.
Does Toolsvanta save my work?
No. Input and results are not saved by the tool. Copy anything you want to keep before closing or refreshing the page.
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