Base64 Encoder & Decoder
Encode text or files to Base64 and decode Base64 back to text or a file. UTF-8 safe and private.
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Runs entirely in your browser — nothing is uploaded
How to use the Base64 Encoder & Decoder
- 1
Pick encode or decode
Work with text, or switch to file mode.
- 2
Paste or open
Results update as you type.
- 3
Copy or download
Decoded binary can be saved as a file.
Base64 shows up in data URIs, email attachments, JWTs and API payloads. Encode or decode text (with full UTF-8 support), turn any file into a data URI, or decode Base64 back into a downloadable file.
Read the full guide with screenshotsFrequently asked questions
Is the Base64 Encoder & Decoder free?
Yes — completely free with no daily limit and no account. ZapMorph’s viewers and developer tools are unmetered.
Is what I type sent anywhere?
No. Everything runs in your browser with JavaScript. Nothing you enter is sent to our servers, which makes it safe for API keys, tokens and private data.
Does it work on my phone?
Yes. It works in any modern browser on iPhone, Android, Windows, Mac and Linux, with nothing to install.
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