Encoding

Base64 Encoder / Decoder

Convert any text or binary string between Base64 and its original representation. Useful for embedding data in URLs, JWTs, data URIs and email attachments. UTF-8 safe.

runtime

Browser-local execution

Inputs stay inside the current tab unless you copy, download or explicitly export.

memory

Session handoff

Magic Paste can pass input to a target tool through sessionStorage, never through the URL.

control

User-owned state

Favorites, recent tools and workflow history are local browser data you can clear from the browser.

smart handoff graph

Suggested next moves

session handoff ready
/encoding
Data URI Encoder
Encode text or SVG assets as data URIs and decode data URIs back to text.
/encoding
URL Encoder / Decoder
Percent-encode URLs and decode them back, with one click.
/encoding
HTML Entity Encoder
Encode and decode HTML entities — named or numeric.
sponsor

Fixed native slots for developer products. No third-party tracking, no popups, no layout shift.

Sponsor this tool
01

How to use

  1. 01Type or paste your input on the left.
  2. 02Pick Encode or Decode mode.
  3. 03The result updates as you type — copy it with the button on the right.
02

FAQ

Does it support Unicode?
Yes. The encoder uses UTF-8 so emoji and non-Latin scripts round-trip correctly.
What is Base64 used for?
Base64 is commonly used to embed binary data inside text formats such as JSON, XML, JWT tokens, data URIs and email (MIME).
Is Base64 encryption?
No. Base64 is reversible encoding, not encryption. Anyone can decode a Base64 string. Never use it to protect secrets.
03

Related tools