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File to Base64 Converter
Convert files or text to Base64 and Data URI formats, then decode Base64 back into downloadable files directly in your browser with no upload required.
How to use this tool
- Use the Text tab for plain text conversion, or switch to file tabs for binary workflows.
- Encode to Base64/Data URI or decode Base64 into downloadable files.
- Copy or download outputs for handoff, debugging, or embedding.
Common Base64 file workflows
- Convert logos and icons to Data URIs for HTML emails, CSS, and inline embeds.
- Share binary payloads as Base64 through systems that only accept plain text.
- Decode logged Base64 blobs back into files to inspect PDFs, images, and JSON payloads.
Helpful tips
- Base64 output is case-sensitive, so use copy buttons to avoid accidental edits.
- Wrapped Base64 from logs often contains newlines; this tool strips whitespace automatically.
- Base64 increases payload size by around 33%, so avoid it for very large assets when possible.
FAQ
- Can this decode Data URIs as well as raw Base64?
- Yes. Paste either a plain Base64 string or a full data:*;base64,... URI in the decode tab.
- Will files be uploaded to a server?
- No. Encoding and decoding run locally in your browser.
- Does this support Unicode text?
- Yes. Text mode uses UTF-8 aware encoding and decoding.
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