Serialize
Data tools in your browser
English

Text to URL-Escaped Base64

Text to URL-Escaped Base64: Prepare a standard Base64 value to be placed in a URL query parameter.

Free · No sign-up required

Text input

Your result is ready to copy or download after running.

Ready when you are.

When to use this tool

Prepare a standard Base64 value to be placed in a URL query parameter. Base64 represents the input bytes; percent encoding then protects URL-reserved characters.

Example

Use “Try example” to load this public sample and its settings, then run it.

Input

Hello

Result

SGVsbG8%3D

How the result is produced

  1. Base64 Encoder
  2. URL Encoder

Conventions and limitations

Percent-escaped standard Base64 is different from the Base64url alphabet. Confirm which representation the receiving protocol requires.

How to use this page

  1. Paste your input or open a local file.
  2. Adjust tool options if needed, then choose Run tool.
  3. Copy the result or download the original output bytes.

Inputs and results are not added to the public catalogue or saved in the URL. Processing happens in your browser; HTTP Request and DNS over HTTPS send the requests you explicitly run. Files up to 128 MiB can be opened; decompression and image tools may have smaller processing limits. Large results have a shortened preview. Text and HTML downloads use UTF-8; binary downloads preserve output bytes. Pasted text follows browser newline handling; open a file when exact input bytes matter.

Related tools

Browse data format tools