How do I encode Chinese text to Base64?

Paste the text, keep UTF-8 (default), and convert. Each character becomes the correct UTF-8 bytes before Base64 encoding.

When should I use URL-safe Base64?

When the result goes into a URL, filename, or token where + and / can break. Enable URL-safe to use - and _ instead, and padding may be omitted.

Why is there an equals sign at the end?

Padding (=) fills the last block to a multiple of 4 characters. Some systems omit it; decoding here still works either way.

How is this different from Image to Base64?

This page encodes plain text only. To embed a whole image in HTML/CSS, use the Image to Base64 tool.

Encode text to Base64

Turn any text—including Chinese and emoji—into Base64 using UTF-8. Optional URL-safe mode replaces +/ with -_ for links and tokens.

InputURL-safe Base64Use - and _ instead of + and / (no padding required on decode).

Output

Need to decode Base64 → text?

Private · Fast · Free

Base64 turns bytes into a text-safe alphabet so you can embed data in JSON, email, or configs. This page encodes UTF-8, so non-English text stays correct.

For images as data URLs, use Image to Base64 instead — this tool is for plain text only.

JWT and some OAuth tokens use URL-safe Base64 without padding; match that mode here when encoding or decoding.

How to encode text to Base64

Paste any text (Unicode, emoji, or code snippets)
Enable URL-safe Base64 if the result goes in a URL or token
Convert and copy — everything stays in your browser

Why use this encoder

UTF-8 by default for multilingual text and emoji
Optional URL-safe alphabet (-/_) with padding stripped
Runs locally — nothing is uploaded
Examples and FAQ written for real failure cases

Common uses

Encode short secrets or config snippets for tickets
Build URL-safe state or signature fragments
Spot-check API Base64 fields before shipping
Pair with JWT decoder and URL encode

Tips

Trailing = is padding; some systems omit it — decoding accepts both
Output is ~33% larger than the UTF-8 byte length
Need the reverse? Use Base64 to text

Examples

Input	Output	Note
Hi	SGk=	ASCII / Latin
你好	5L2g5aW9	Chinese with UTF-8
🎉	8J+OiQ==	Emoji
a+b/c=	YStiL2M9	Try URL-safe when +/= matter

FAQ

How do I encode Chinese text to Base64?: Paste the text, keep UTF-8 (default), and convert. Each character becomes the correct UTF-8 bytes before Base64 encoding.
When should I use URL-safe Base64?: When the result goes into a URL, filename, or token where + and / can break. Enable URL-safe to use - and _ instead, and padding may be omitted.
Why is there an equals sign at the end?: Padding (=) fills the last block to a multiple of 4 characters. Some systems omit it; decoding here still works either way.
How is this different from Image to Base64?: This page encodes plain text only. To embed a whole image in HTML/CSS, use the Image to Base64 tool.