Base64 Decode Online

Decode a Base64 string back to readable text.

Get this result as JSON (developer API)
curl "https://encode.wrapper-agency.com/api/v1/encode?op=base64-decode&value=SGVsbG8sIHdvcmxkIQ%3D%3D"

Free encode/decode/hash API — no key during beta. Everything is computed locally; nothing you enter is stored.

About Base64 Decode

Base64 decoding reverses Base64 encoding, turning the 64-character representation back into the original bytes and, here, into UTF-8 text.

This decoder also accepts URL-safe Base64 (where + and / are replaced by - and _), so tokens copied from URLs or JWTs decode without manual cleanup.

If the input is not valid Base64, you will get a clear error instead of garbled output.

Example

InputSGVsbG8sIHdvcmxkIQ==
OutputHello, world!

Use it from code

curl "https://encode.wrapper-agency.com/api/v1/encode?op=base64-decode&value=YOUR_TEXT"

Free during beta — no key. See the full API reference.

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