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FILES WORKSPACE · FREE & PRIVATE

File to Base64

Encode a file as Base64 text for data exchange and development.

✓ Files stay on your device✓ No account needed✓ No daily usage quota
1

Choose a file

or drag and drop it here

Any file type · 20 MB total

    2

    Prepare your download

    Review the selected files above. Your originals will not be changed.

    MORE WAYS TO WORK WITH YOUR FILES

    Your next task, one click away

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    How to use File to Base64

    1. Choose a supported file using the file picker or drag and drop.
    2. Check the filename and size before continuing.
    3. Select Process, review the result, and download it.

    Check your output before using it

    • The output is raw Base64; add a data-URL prefix only if the receiving application requires it.
    • Base64 is an encoding, not encryption, and typically increases size.

    The method, explained

    Groups of three bytes are represented by four Base64 characters. Output is raw Base64, without a data URL prefix.

    A WORKED EXAMPLE

    A text file containing hello becomes aGVsbG8=.

    What to keep in mind

    Up to 20 MB input in total. ZIP extraction is limited to 100 files and 50 MB expanded data. Encrypted archives, unsafe paths and suspicious expansion ratios are rejected.

    Common questions

    Are my files uploaded?

    No. This tool processes files in your browser. Files are not sent to ClarityKit or an external API. Reset the tool or close the tab to release the working files.

    What should I do if processing fails?

    Check the supported formats and limits above. Try a smaller, unencrypted file and keep the tab open until the result is ready.

    Built and checked by ClarityKit. File privacy · Open-source notices

    Working with different formats? Open the File Converter with previews and batch downloads.