File to Base64 Converter
Encode any file (PDF, font, audio, ZIP…) up to 25 MB to Base64 or a data URL, entirely in your browser.
Runs in your browserFile → Base64
Loading tool…
How to use the File to Base64 Converter
- Choose or drop a file.
- Pick raw Base64 or a data URL, then copy or download the result.
Privacy and limitations
- Your data is processed on your device and is not uploaded to any server.
- Files are limited to 25 MB to keep the browser responsive.
Related converters
Image to Base64 ConverterConvert an image to a Base64 data URL with ready-to-paste CSS, HTML and Markdown snippets and a live preview.Base64 EncoderEncode text to Base64 with full UTF-8 support (emoji and accents included), with optional MIME or PEM line wrapping.Base64 to File ConverterDecode Base64 or a data URL and download it as a file with the type and extension detected from its contents.Base64 to Image ConverterPreview Base64 image data or a data URL as an image. The format (PNG, JPEG, GIF, WebP, SVG…) is detected automatically.JSON to Base64 EncoderValidate JSON, optionally minify it, and encode it to standard or URL-safe Base64.Base64 to JSON DecoderDecode Base64 to JSON, check that it is valid and pretty-print it with your chosen indentation.Base64URL DecoderDecode URL-safe Base64 (with - and _, padding optional) such as JWT segments back to UTF-8 text.XML to Base64 EncoderCheck that XML is well-formed and encode it to Base64 (UTF-8), e.g. for SOAP attachments or SAML.