Base64 Encoder / Decoder
Encode text or files to Base64, and decode Base64 back to text or a binary file. Handles large inputs — all client-side.
Everything runs in your browser — files are never uploaded.
About this tool
Encode text or files to Base64 and decode Base64 back to text or binary. Handles large inputs smoothly — everything is processed client-side, so nothing is uploaded.
Base64 encoding is needed for inline images, emails, and API payloads, but tools vary in quality. This encoder and decoder work on both text and files, cope with large inputs, and run entirely in your browser. You get the encoded string or decoded output to copy straight away.
Why use it
Reliable, private, and fast Base64 conversion for both text and files — no uploads and no limits on input size.
How it works
- Paste Base64, enter text, or select a file.
- Choose to encode or decode.
- Copy the resulting Base64 or decoded content.
Frequently asked questions
Is my data uploaded?
No — encoding and decoding happen locally in your browser.
Can I encode a file?
Yes, select a file to get its Base64 representation.
How large can the input be?
It's designed to handle large inputs comfortably within your browser's memory.
All processing on this page happens locally in your browser — your files are never uploaded to a server.
https://filedestination.com