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Base64 URL Decoder

Decode URL-safe Base64 back to text.

What Is a Base64 URL Decoder?

The Base64 URL Decoder converts URL-safe Base64 back into plain text. It accepts the '-' and '_' alphabet (with or without padding) and reconstructs the original data, making it easy to decode JWTs, signed URLs, and query-parameter tokens.

How to Use This Base64 URL Decoder

  1. 1
    Input TextPaste the URL-safe Base64 string to decode.
  2. 2
    Instant DecodingThe decoded text appears immediately.
  3. 3
    Copy ResultClick the copy button to save it.

Frequently Asked Questions

No. This decoder expects the URL-safe alphabet. If your data uses '+' and '/', use the standard Base64 Decoder instead.
Yes. URL-safe Base64 usually omits padding, and this tool restores it automatically before decoding.

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