Converter Tool
Base64 to File
Decode Base64 into its original bytes, identify common formats and download the file without uploading it.
Decode Base64 into a file
Accepts raw, URL-safe and data URL Base64, including whitespace and omitted padding.
Decoded file
Paste raw Base64 or a Base64 data URL, then decode it locally.
Your input is decoded entirely in this browser tab. DevKitYard does not upload, store or transmit it.
How to Use Base64 to File
- Paste raw Base64, URL-safe Base64 or a Base64 data URL.
- Decode the value and check the detected format, MIME type and exact byte size.
- Review the safe image or text preview when the detected format supports one.
- Adjust the suggested filename if needed, then download the decoded bytes.
FAQ
Is my Base64 uploaded?
No. Decoding, format detection, previewing and file creation happen locally in your browser.
Which file types can the decoder identify?
It checks decoded bytes for common image, document, archive, audio and video signatures, and can recognise likely UTF-8 text, JSON, XML, HTML and SVG source.
What if the data URL has the wrong MIME type?
The tool compares declared metadata with the decoded bytes and warns when they disagree. Confirmed byte signatures take precedence for the download extension.
Does it support URL-safe Base64 or missing padding?
Yes. URL-safe characters, whitespace and repairable omitted padding are normalized before decoding. Invalid characters and impossible padding are rejected.