ICO to Base64 encoder.
Drop a favicon.ico and get its bytes, every size inside, as one Base64 string for a config or a pipeline. Read on your device only.
ICO to Base64 encoder.
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Drop the ICO
Drop the ICO onto the pane or choose it; the preview shows it with its size.
Read the string
The bytes are encoded at once; the status counts the frames and the characters.
Copy or download
Copy the Base64 to the clipboard or download it as a text file.
Related tools
More ICO tools. Every one free, in the browser.
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Questions and answers
Before you trust the result: what to know about the format, the limits, your data and the tools next to it.
Yes. The whole file is encoded as it is, so every frame, 16, 32, 48 and the rest, comes back when the string is decoded. The status line says how many frames the directory lists.
Store the string in an environment variable or a config file; at deploy time decode it (base64 -d on Unix, or your language's library) and write it to favicon.ico in the output directory.
Keep each tenant's favicon as Base64 in its config record and decode it at build time or on request. No files to manage per client.
Yes; Base64 is plain text and safe inside JSON. A favicon is a few kilobytes, so the string stays manageable; a 256-pixel Windows icon is larger.
ICO keeps several sizes in one file and works in every browser ever made; PNG is simpler and enough for modern ones. For a string you will decode programmatically, ICO is the safer bet.
Drop the ICO or choose it. It is read and encoded on your device; the string appears with its length, and the icons copy it or download it as a text file. For a data: URI with the MIME type in front, use the data URI tool.
No. The ICO is read and its frames decoded by JavaScript on your device; the page makes no request with your file. Load it, go offline and it still works.
No. The ICO to Base64 encoder is free and opens without a sign-in, an account or an install.
Up to 20 MB per file, the limit the tool states under its drop area. A larger file is refused with a plain message instead of being decoded.
No, it takes one file at a time. If you drop or choose several, only the first is used; run the tool again for the next one.
No. The text is made from the file's own bytes, unchanged, so EXIF and every other metadata field stay inside it. Nothing is re-encoded or resized.
About a third longer: Base64 writes every three bytes as four characters. The status line shows the exact character count and the overhead for your file.
Closest to the ICO to Base64 encoder: ICO to data URI converter, ICO to PNG converter, PNG to ICO converter, SVG to Base64 encoder. Each opens on its own page, free and in the browser.
The ICO to Base64 encoder is one of 37 in its group. The group's page, /tools/ico, lists them all.
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