Base64 轉圖片轉換器

將 Base64 字串或資料 URL 解碼為可下載的圖片。

如何使用本工具

1
Paste your Base64 payload or full data URL (data:image/...) into the text box. Leading and trailing whitespace in a raw Base64 string is stripped automatically.
2
The decoded image appears as a live preview the moment the browser can render it; if the data cannot be decoded, an 'Invalid Base64 image data' message is shown instead.
3
Click the Download button to save the image to your device as image.png.

如果你接手了一個內嵌資料 URL 的 CSS 檔案或 HTML 頁面，本工具可以擷取出圖片，讓你能將其儲存為檔案。貼上完整的資料 URL（data:image/...）或僅貼上 Base64 負載：兩種我們都能處理。

Recovering an icon or logo that a previous developer hard-coded as a data URL inside a CSS or HTML file, so you can save it back to a real .png file.
Inspecting a Base64 image string returned by an API or stored in a JSON payload to confirm it actually decodes to the picture you expect.
Pulling an embedded image out of an SVG or email template where assets were inlined as data URLs to reduce HTTP requests.
Quickly verifying that a Base64 string copied from logs, a database column, or a clipboard snippet is a valid, renderable image.
Extracting a screenshot or avatar that a tool exported as a data URL when you need the binary file instead of the text blob.
Teaching or demonstrating how data URLs work by pasting an encoded string and watching it render live in the preview.

它接受僅有 Base64 字串嗎？▼

接受。如果你貼上的是不帶資料 URL 前置詞的原始 Base64，我們會假定為 image/png。對於其他類型，請貼上完整的資料 URL。