Developer tool
Base64 Encode Decode
Encode text to Base64, decode Base64 back to text, or generate image data URLs for CSS and HTML embeds — all in your browser.
Private by design. Nothing is uploaded. Encoding and decoding happen locally.
How it works
- Choose encode, decode, or image mode.
- Paste text or select an image.
- Convert and copy the output.
Frequently asked questions
Is this Base64 tool free?
Yes. Free with no account.
Can I convert an image to Base64?
Yes. Choose Image → Base64 and pick a file to get a data URL.
Do you store my data?
No. Everything stays in this tab.
Does it support Unicode text?
Yes. Text encode/decode uses UTF-8-safe conversion.