Base64 Convert

Text/Image/File Base64 encode and decode

Browser local processingInputs and files are not uploaded to our serverData processing

Base64 Encode / Decode

Enter text or Base64 Upload image/file to Base64

Conversion result will appear here; image Data URLs will auto-preview

Supports Chinese, data processed locally in browser only

Instructions

Convert between text and Base64

Use when handling API fields, config snippets, or simple encoded content.

1Paste source text or Base64

2Select encode or decode

3Copy converted content

After completionGet readable text or standard Base64 string.Paste content to convert first

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Encode text as Base64 with UTF-8 bytes

Use Base64 for text in ASCII-only fields or to debug an encoded payload. This tool converts text into UTF-8 bytes, applies standard Base64 and reads decoded bytes as UTF-8.

An example to check

Input and settings

Hello

Expected result

SGVsbG8=

Encoding should produce SGVsbG8=. Decoding that value restores Hello. The trailing = is standard padding and should not be removed arbitrarily.

Scope and limitations

Base64 is an encoding, not encryption. Anyone with the string can recover its contents; it does not protect passwords.
Text decoding reads UTF-8. File uploads can produce a Data URL, but arbitrary binary data cannot necessarily decode to text. Use the matching tools for URL-safe Base64 and JWT segments.

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