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Encoding Tools
Base64URL Encoder
Encode Unicode text as unpadded URL-safe Base64 using UTF-8.
Browser workspace
⌘ / Ctrl + Enter to runBase64URL Encoder
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Privacy-first processing
Your data stays private. All processing happens locally in your browser. Nothing is uploaded to our servers.
Why use Base64URL Encoder?
Encode Unicode text as unpadded URL-safe Base64 using UTF-8. Processing stays in the current browser tab so the source remains private.
Unicode-safe UTF-8 input
URL-safe alphabet
Optional equals padding
How to use it
- 1
Enter text.
- 2
Choose whether to retain padding.
- 3
Select Encode.
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Common use cases
Encode compact web parameters
Example
DevTools Hub ✓Frequently asked questions
What does Base64URL Encoder do?
Encode Unicode text as unpadded URL-safe Base64 using UTF-8. Processing stays in the current browser tab so the source remains private.
Is my text input uploaded?
No. Your text input is processed locally by browser APIs and is never sent to DevTools Hub.
Can I use Base64URL Encoder without an account?
Yes. Base64URL Encoder is free, works without registration, and supports modern desktop and mobile browsers.
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