Does Base64 support Unicode text?
Yes. Text is converted with UTF-8, so accented characters, non-Latin scripts, and emoji can be encoded and decoded.
Base64 & URL Encoder Decoder
Encode or decode Unicode text and files with Standard or URL-safe Base64 and precise URL encoding modes.
Workspace
Format
Direction
Choose the right option
Standard Base64 is common in files, email, and data fields. URL-safe Base64, also called Base64url, replaces + and / with - and _.
Padding is optional in many URL-safe uses. Decoding accepts padded or unpadded input but checks the selected alphabet.
GuideHow to use
- Choose Base64 or URL encoding, then choose Encode or Decode.
- For Base64, select the standard or URL-safe alphabet and optional output padding. Text or files can be encoded.
- For URL encoding, choose a component, complete URL, or HTML form value so reserved characters and spaces are handled correctly.
- Copy or download the live result, reverse the conversion, or download decoded Base64 bytes.
HelpFrequently asked questions
What is the difference between Standard Base64 and Base64url?
Standard Base64 uses + and /. URL-safe Base64, often called Base64url, uses - and _ so the result fits more easily in URLs and filenames. Padding may be omitted in many Base64url uses.
Which URL encoding style should I choose?
Use Component for one query value, path segment, or text fragment. Use Complete URL to keep separators such as : / ? and & readable. Use Form value when spaces should become +.
Can Base64 represent a file?
Yes. Select a file up to 5 MB to create Base64 text. When decoding, you can download the resulting bytes even when they are not valid UTF-8 text.
Is Base64 encryption?
No. Base64 only changes how data is represented and does not protect passwords or confidential information.
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