Base64 Decoder
Decode Base64 to text online free. UTF-8, URL-safe. Browser-based, private.
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Base64 Decoder
Decode a Base64 string back to readable text instantly.
Why it matters: A decoder recovers the original payload from logs, configs, or API responses.
How to use Base64
- 1 Type or paste your text into the input box above.
- 2 Click Encode to turn text into Base64, or Decode to convert it back.
- 3 Toggle URL-safe mode for links, or UTF-8 for emoji and accents.
- 4 Use JWT / API-key / JSON modes for developer workflows.
- 5 Copy the result or open a specialized tool from the hub below.
Frequently Asked Questions
Paste the Base64 string into the input box and click "Decode." The tool reverses the encoding process to reveal the original text.
If the original data wasn't plain text (e.g., it was an image or PDF), decoding it to text will show garbled characters. Ensure the source was originally text.
No. Base64 must be properly padded (with = signs) and contain valid characters (A-Z, a-z, 0-9, +, /). Our tool validates input automatically.
Yes. Decoding is a mathematical reversal. However, be cautious if the decoded content contains executable scripts or links from untrusted sources.
Invalid Base64 may produce an error or garbled output. Make sure the string is properly formatted with correct padding. Encoding and decoding happen entirely in your browser, so your text never leaves your device.
All Base64 Tools
Encode, decode, and inspect Base64 for web, APIs, and JWTs.
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