Your files stay on your device
Data & DevBase64 Encoder & Decoder
Convert plain text, Unicode strings, and binary files into Base64 strings, or decode Base64 data back into text and downloadable files.
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How it works
- Switch between Encode and Decode modes.
- Type text or upload any local file to generate standard RFC 4648 Base64 data.
- When decoding binary payloads, download the resulting file with one click.
Privacy & Processing Information
Your files stay on your device. Encoding and decoding occurs in client-side memory.
No account, tracking, or file storage required.
Frequently Asked Questions
Does this handle special UTF-8 characters properly?
Yes. Text is converted via TextEncoder/TextDecoder before Base64 encoding, preventing common ASCII-only encoding bugs.
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