Image / Data URL Converter

Encode a supported image as a data URL or decode one into a local image file.

Encode a supported image as a data URL or decode one into a local image file.

Choose a file or drop it here

Data URL

Options

Direction

PNG/JPEG/static WebP up to 5 MiB. Decode accepts matching base64 data:image/png, jpeg or webp only; up to 7 MiB of pasted text. SVG and remote URLs are rejected. Base64 adds about one-third to the encoded payload size; it is not encryption. Decoded images also obey 16 million pixels and 8192 pixels per side. Decoded images also obey 16 million pixels and 8192 pixels per side.

How to use

Image / Data URL Converter

Encode a supported image as a data URL or decode one into a local image file.

Step by step

Choose a supported input or load the example, then review the original.
Encode a supported image as a data URL or decode one into a local image file. Start with the displayed settings, change only the options needed for your output and compare the result with your source.
Run the task, review the actual result and copy or download a checked copy.

Choosing the settings

Option	What changes
Options	Encode a supported image as a data URL or decode one into a local image file. Start with the displayed settings, change only the options needed for your output and compare the result with your source.
Limits	PNG/JPEG/static WebP up to 5 MiB. Decode accepts matching base64 data:image/png, jpeg or webp only; up to 7 MiB of pasted text. SVG and remote URLs are rejected. Base64 adds about one-third to the encoded payload size; it is not encryption. Decoded images also obey 16 million pixels and 8192 pixels per side. Decoded images also obey 16 million pixels and 8192 pixels per side.

Example and expected result

A 3-byte payload becomes 4 base64 characters; the data URL prefix adds further characters. Decoding a supported image restores its original encoded bytes.

If it is not working

This MIME type is unsupported or does not match the file bytes. Use PNG, JPEG or WebP.

Formats and limits

PNG/JPEG/static WebP up to 5 MiB. Decode accepts matching base64 data:image/png, jpeg or webp only; up to 7 MiB of pasted text. SVG and remote URLs are rejected. Base64 adds about one-third to the encoded payload size; it is not encryption. Decoded images also obey 16 million pixels and 8192 pixels per side. Decoded images also obey 16 million pixels and 8192 pixels per side.

FAQ

What does this tool do?

Encode a supported image as a data URL or decode one into a local image file.

Which setting should I choose?

Encode a supported image as a data URL or decode one into a local image file. Start with the displayed settings, change only the options needed for your output and compare the result with your source.

What are the limits?

PNG/JPEG/static WebP up to 5 MiB. Decode accepts matching base64 data:image/png, jpeg or webp only; up to 7 MiB of pasted text. SVG and remote URLs are rejected. Base64 adds about one-third to the encoded payload size; it is not encryption. Decoded images also obey 16 million pixels and 8192 pixels per side. Decoded images also obey 16 million pixels and 8192 pixels per side.

Why did processing fail?

This MIME type is unsupported or does not match the file bytes. Use PNG, JPEG or WebP.

Is my input uploaded or saved?

No. Processing runs on your device. Inputs and results stay in this page’s memory until you clear it or leave. They are not uploaded, logged or stored by ToolRobin. Copying places the result on your device’s clipboard.