ローカル処理
Image to Base64
Encode an image to a Base64 string for embedding in code, HTML, and CSS.
ここにimageをドロップ
またはコンピュータやスマートフォンのファイルを参照
ブラウザ内で100%ローカル処理
Simple Steps
How to use Image to Base64
1
Select or drop an image.
2
Choose your output mode: raw Base64, data URI, CSS, or HTML.
3
Click 'Encode' to generate the string locally.
4
Copy the result to your clipboard or download it.
Got Questions?
Frequently Asked Questions
What is Base64 encoding?
Base64 represents binary data as ASCII text, letting you embed images directly in HTML, CSS, JSON, and code without separate files.
When should I use a data URI vs a file?
Data URIs are great for tiny assets (icons under a few KB). For large images they bloat your HTML/CSS; use real files instead.
Is encoding done locally?
Yes. The image is converted to Base64 entirely in your browser.
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