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Online Image to Base64 Converter

Convert images to raw Base64 or data URLs. Preview your image, copy the output, or download it as a text file.

or drop here · up to 50 MB

PNG, JPEG, GIF, WebP, BMP, SVG

Image preview

Preview (optional)

Your image appears here after you choose a file.

Encode an image to generate output

Quick start

How to encode an image to Base64

  1. Choose an image — drop or browse a PNG, JPEG, GIF, WebP, BMP, or SVG (max 50 MB).

  2. Encode — click Encode. The tool verifies the file is a real image, then builds a Base64 string in your browser.

  3. Copy or download — switch between Data URL and Raw Base64, copy the string, or download it as a .txt file.

Format notes

Data URL vs raw Base64

A data URL includes a MIME prefix such as data:image/png;base64, followed by the payload. Use it in HTML <img src>, CSS background-image, or anywhere a URL is accepted.

Raw Base64 is only the encoded payload—no data: prefix. APIs and some config files expect this form.

Base64 is encoding, not encryption or compression. Anyone can decode it, and the text is typically about one-third larger than the original file.

Supported inputs: PNG, JPEG, GIF, WebP, BMP, and SVG. Renamed non-image files are rejected even if the extension looks valid.

Processing stays in your browser on this page—images are not uploaded to ConversionTab servers for encoding.

Help

Image to Base64 FAQs

Short answers about output formats, size, supported images, and privacy.

Data URL includes the data:image/…;base64, prefix so browsers can use it as an image source. Raw Base64 is only the encoded bytes—better for APIs that add their own prefix.

PNG, JPEG, GIF, WebP, BMP, and SVG up to 50 MB. The file must contain real image data; a text file renamed to .png is rejected.

Base64 encodes binary as text and expands size by roughly one-third. It does not compress the image.

No. Base64 is a reversible encoding. Anyone with the string can decode it back to the original image bytes.

No. Encoding runs in your browser. Copy or download the result to your device when you are ready.
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