Base64 file converter
Convert files to Base64 strings or decode Base64 back into downloadable files. Handles binary data locally without uploading your file.
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Base64 output
Choose a file to generate Base64.// About this tool
Embed small files in JSON, CSS, or HTML, or recover a file from a Base64 string. Choose a file or paste encoded data and download the result.
// How to use it
- Choose encode or decode mode.
- Select a file or paste Base64 data.
- Copy the output or download the decoded file.
// Frequently asked questions
Is there a file size limit?
Very large files may be limited by browser memory, but no fixed server-side limit applies.
Are files uploaded?
No. Files are read and converted locally in your browser.