Base64 Encoder & Decoder
RunDev
Encode text or files to Base64 and decode Base64 strings. Supports Unicode text and binary files.Updated 2026-03-11
Ctrl+Enter Run Ctrl+Shift+C Copy output
Frequently Asked Questions
Is this tool free to use?
Yes, completely free. All processing happens in your browser — no data is sent to any server.
Do I need to create an account?
No account or signup required. Just open the tool and start using it immediately.
Is my data safe?
Yes. Everything runs locally in your browser. Your data never leaves your device.
How to Use
- Check validation messages for issues
- Review output with syntax highlighting
- Click Process or press Ctrl+Enter
- Select formatting options
FAQ
Does it support large files?
Handles reasonably large inputs. Files over 10MB may take a few seconds depending on your device.
Which standards does it follow?
Follows the latest official specifications — RFC, W3C, or ECMA as applicable.
Does it validate input?
Yes, input is validated and clear error messages are shown for any issues.
Can I integrate this into my workflow?
Bookmark for quick access. The URL updates with settings for sharing configurations.
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