What's the difference between text to Base64 and text to Base64URL?

Base64URL replaces + with - and / with _ to make the output URL-safe. Use Base64URL when the encoded text will appear in URLs, JWTs, or filenames.

How do I create a JWT token?

JWT tokens consist of three Base64URL-encoded parts: header, payload, and signature. This tool helps you encode the header and payload. The signature requires cryptographic signing.

Should I include padding in my Base64URL output?

JWT specifications typically omit padding (=) from Base64URL strings. However, some systems require it. This tool lets you choose based on your needs.

Can I use Base64URL in regular URLs?

Yes, that's the point. Base64URL is specifically designed to be URL-safe, so you can use it in query parameters, path segments, and anywhere in a URL.

Will this encode my text securely?

No. Base64URL is encoding, not encryption. Anyone can decode it. Never use Base64URL alone to protect sensitive information.

Text to Base64URL

Convert text to URL-safe Base64URL format for JWTs and URLs

Text (Plain)

Auto-detect: paste text to convert

Input

Mode

Encoding

No padding

Base64 (Encoded)

Spacer

Output

What is Text to Base64URL?

Convert plain text to Base64URL format, the URL-safe variant of Base64 used in JWT tokens, OAuth flows, and URL parameters. Base64URL replaces + with - and / with _ to ensure the encoded string is safe for use in URLs, query parameters, and filenames. This tool is essential for creating JWT token segments, URL-safe identifiers, and any encoded data that needs to work in web contexts.

How to Use

Type or paste your plain text

The tool converts it to Base64URL instantly

Copy the URL-safe Base64URL result

Use in JWTs, URLs, or query parameters

Common Use Cases

Create JWT token header and payload segments

Encode text for URL query parameters

Generate URL-safe tokens and identifiers

Create safe filenames from text

Encode data for OAuth and SAML flows

Key Features

Instant text to Base64URL conversion

URL-safe output with - and _

Full UTF-8 Unicode support

Optional padding control

One-click copy to clipboard

Quick Examples

Try these to get started

Convert text to Base64URL

Convert JWT header to Base64URL

{"alg":"HS256","typ":"JWT"}

Convert for URL parameter

Create URL-safe encoded string

user:12345|role:admin

Convert token to Base64URL

Encode token for URL transmission

session-abc123-xyz789

Common Questions

Find answers quickly

Related Tools

You might also need

Base64 Encoder / Decoder

Encode to Base64 or decode Base64 to text — supports Base64URL (JWT), UTF-8/Latin1, padding toggle, and auto-detect.

Base64URL to Text

Convert Base64URL from JWTs and URLs back to readable text

Base64URL Encode

Encode text to URL-safe Base64URL format for JWTs and URLs

Text to Base64

Convert plain text to Base64 encoding instantly

JWT Decoder

Decode JWT tokens locally to inspect header + payload claims (exp/nbf/iat, iss/aud, scopes/roles) and debug OAuth2/OIDC authentication issues.

URL Encoder & Decoder

Encode or decode URL strings and query parameters using percent-encoding (UTF-8)