Base64 Encoder
Experimental text-file batch
Standard Base64 only. Strict UTF-8 without BOM. Experimental limits: 4 files, 300000 bytes and 100000 UTF-16 units per file, 1200000 bytes per batch. One result at a time; preview limited to 4096 units.
Unavailable in this renderer. This pilot requires actual website WebAssembly execution; server, prerender, extension and WebView are not supported. A later visit may use WebAssembly.
Cancellation is cooperative during reads and between operations; synchronous encoding cannot be interrupted by a click. Export requested does not confirm a durable save. Clear cannot remove saved downloads. No secure-erasure or production privacy claim.
Base64 Encoder guide
Convert text to Base64.
Input and limitations
Any text, encoded in Standard or URL-safe Base64.
Check the selected options before using the result. Formatting and conversion do not establish that data is safe or suitable for your application.
How to use Base64 Encoder
- Type or paste your text.
- Choose Standard or URL-safe above.
- The result appears on the right.
- Use the copy button to copy the result.
- Click Clear to empty the input and output; your options stay selected.
Example
With Standard Base64 selected, Hello becomes SGVsbG8=. Base64 is an encoding, not encryption.
Privacy on the website
The website uses Blazor Auto: interactive processing can run on the server or in your browser, depending on the current session. Do not assume pasted input stays on your device. Use non-sensitive sample data, and never place passwords, tokens or personal data in page URLs.
Search indexing covers public tool descriptions, not your input or generated output. See the privacy policy for website analytics and other data handling.