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Base64 Decoder Online

Decode Base64 to text online for free. This UTF-8 aware Base64 decoder supports standard and URL-safe Base64, missing padding, line breaks and multilingual text directly in your browser.

100% FreeNo Signup RequiredPrivacy Friendly
Privacy note: this page performs Base64 decoding in your browser. Do not enter passwords, private keys, payment data or other confidential information into any online tool unless you understand its processing.

Paste a Base64 string, URL-safe Base64, or wrapped Base64. Separate multiple Base64 values with a blank line to decode each value independently.

Input: 0 characters
Output: 0 characters | UTF-8 bytes: 0

Base64 Decoder Online

Use this Base64 decoder online to turn an encoded Base64 value back into readable text. It is useful for developers, students and anyone who needs to decode Base64 to text without installing software. The page supports standard Base64 as well as Base64url-style input commonly seen in URLs and tokens.

The decoder is designed for UTF-8 text, so properly encoded accented characters, Hindi and other non-Latin scripts can be restored without the character corruption caused by simple ASCII-only decoding. Whitespace such as line breaks and tabs is ignored, which is useful when Base64 has been copied from logs, email-style wrapped text or formatted documents.

Convert Base64 to Text

For a typical Base64 to text converter task, paste the encoded value and the decoded result appears automatically. Missing trailing padding can be restored when the Base64 length is valid. URL-safe characters - and _ are also accepted, making this useful for Base64 URL decoder searches, JWT segments and other web-development values. Base64 is an encoding method, not encryption, so decoding does not provide security or confidentiality.

How to Use the Base64 Decoder

  1. Paste your Base64 string into the input box.
  2. For multiple separate values, place a blank line between each Base64 value.
  3. The tool validates the characters and padding, then decodes the bytes as UTF-8 text.
  4. Review the result, then use Copy Result or Download.

Common Base64 Decoding Uses

A Base64 decode online tool can help inspect API values, JSON fields, data URLs, email content, configuration strings and JWT header or payload segments. For URL-safe Base64, the decoder accepts the alternate alphabet used by Base64url. If the decoded bytes are not valid UTF-8 text, the page reports an error rather than silently presenting misleading characters.

Frequently Asked Questions

How do I decode Base64 online?
Paste the encoded value into the input box. The decoder handles standard Base64, URL-safe characters, missing padding and harmless whitespace before decoding it as UTF-8 text.
Can I decode Base64 without padding?
Yes. Valid unpadded Base64 can be decoded after the required trailing padding is restored.
Can I paste Base64 with line breaks?
Yes. Line breaks, tabs and spaces are ignored when they are part of a wrapped Base64 value.
Does it support Hindi and other Unicode text?
Yes, when the original content was encoded using UTF-8. The decoder converts the resulting bytes with UTF-8 support.
Is Base64 encryption?
No. Base64 is encoding, not encryption. It should not be used as a method for protecting secrets.