Base64 Encode & Decode

Encode or decode Base64 with full Unicode support, URL-safe output and optional padding removal. Handy for JWTs, data URIs and API payloads. Everything stays in your browser.

Tool 001 · Encoders & hashes

Outside requests …How to checkRuns on this deviceWorks offline once opened

Frequently asked questions

What is URL-safe Base64?

It swaps + and / for - and _ so the result can be used in URLs and filenames without escaping, and often drops the = padding. JWTs use this variant.

024
Image to Base64 & Data URI
Embed an image as a Base64 data URI, or turn Base64 back into an image.
030
JWT Decoder
Decode and inspect JSON Web Tokens, and verify HMAC signatures.
017
Text to Hex & Binary Converter
Convert text to hexadecimal or binary and back.
066
URL Encoder & Decoder
Percent-encode or decode URLs and query strings.

Frequently asked questions

Related tools

Image to Base64 & Data URI

JWT Decoder

Text to Hex & Binary Converter

URL Encoder & Decoder