What Is Base64 & URL Encoder?
A free online Base64 and URL encoder/decoder. Convert text to Base64 or URL-encoded format, and decode back. Supports Unicode characters including emojis and CJK text. All processing happens locally in your browser.
Why Use Base64 & URL Encoder?
- Four modes: Base64 encode/decode, URL encode/decode
- Full Unicode support (emojis, CJK, etc.)
- Instant real-time conversion
- One-click swap to reverse encoding direction
How to Use Base64 & URL Encoder — Step by Step
1
Choose the mode: encode or decode, Base64 or URL.
2
Paste your text or encoded string into the input field.
3
The output updates instantly as you type.
4
Copy the result or swap input/output to reverse the operation.
Who Is Base64 & URL Encoder Best For?
- API debugging
- data URIs
- URL parameters
- JWT tokens
Base64 & URL Encoder — Frequently Asked Questions
Does this support Unicode characters?
Yes, the tool properly handles UTF-8 encoding, so emojis, Chinese, Japanese, and other multi-byte characters work correctly.
Is my data sent to a server?
No. All encoding and decoding happens entirely in your browser. No data is ever transmitted to any server.
Ready to Use Base64 & URL Encoder?
Free online tool — works in your browser, no sign-up required. Start using it right now.
Try It Now