Image to Base64

Turn a local PNG, JPEG or WebP into a Base64 data URL for your HTML or CSS.

On your device · No account

Privacy details

Image to Base64 processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

Copy link includes the inputs you choose to share in the address. Anyone with that link can reopen them. Files and generated results are excluded. Password and key tools share settings only.

Choose an image

Your result

Enter your values.

Reset reloads the tool with its starting values and releases open files and device controls. Saved drafts stay on this device until you delete them.

Links include your inputs and settings. Anyone with the link can see them, so leave out private text. Files and generated results are left out; random draws run again.

Keyboard shortcuts

Updated 2026-09-19

Using the image to base64

The data URL contains the original file bytes, including any embedded metadata. It starts with the image type and a Base64 marker, then the encoded bytes. Unlike a hosted image URL, it does not point to a remote file.

Next: Color picker from image

A worked example

The example begins data:image/png;base64, followed by the encoded bytes of the original sample artwork.

Before you use the result

Input is limited to 2 MB to keep the text output manageable. Base64 generally increases file size. Remove sensitive metadata first if the file will be shared.

Next: Image resizer

Cite this page

Citation style

ToolOctopus. “Image to Base64.” Updated 2026-09-19. https://tooloctopus.com/image-to-base64.

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