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Base64 URL Safe Encoder / Decoder

Convert text to URL-safe Base64 encoding. Replaces + and / with - and _ and removes padding for clean URLs and filenames. Fast, free, and private.

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About Base64 URL Safe Encoder / Decoder

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1

Enter String

Paste your text or sensitive URL data into the converter.

2

Automatic Conversion

The tool replaces URL-unfriendly characters with safe alternatives.

3

Remove Padding

Resulting strings are optimized for clean URLs without trailing '=' signs.

4

Copy URL-Safe Result

Grab the string for use in query parameters or filenames.

Ensure your encoded data is 100% compatible with web URLs and file systems. Standard Base64 uses '/' and '+' characters which can break URL structures. Our Base64 URL-Safe converter replaces these with '-' and '_' and removes trailing '=' padding. This produces cleaner, more predictable strings for use in query parameters, JWTs, and secure filenames.

Key Features

Safe Substitution

Converts standard Base64 into a format that won't require URL encoding.

Padding Stripping

Automatically removes '=' characters for leaner, more compact strings.

API Compatible

Standard-compliant encoding for modern web and database protocols.

Frequently Asked Questions

It replaces '+' with '-' and '/' with '_' to ensure the string can be used safely in URLs without further encoding.

Removing '=' padding at the end of the string makes it more compact and avoids issues with URL parsers.

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