Best Free Encoding & Decoding Tools

Last updated: May 1, 2026

Encode and decode text in Base64, URL encoding, HTML entities, ROT13, and more with these free tools.

Top 10 Encoding Tools — Ranked

#1

Base64 Encoder/Decoder

Encode and decode Base64 strings

#2

URL Encoder/Decoder

Encode and decode URL components

#3

HTML Entity Encoder

Encode and decode HTML entities

#4

ROT13 Encoder

Apply ROT13 cipher to text

#5

Morse Code Translator

Translate text to/from Morse code

#6

Binary Translator

Convert text to binary and back

#7

Text to Binary

Encode text as binary numbers

#8

Unicode Converter

Convert between Unicode encodings

#9

Escape/Unescape Tool

Escape and unescape special characters

#10

Punycode Encoder

Encode internationalized domain names

Frequently Asked Questions

What is Base64 used for?

Base64 is used to encode binary data as text — common for data URIs in HTML/CSS, email attachments, and API payloads.

What is URL encoding?

URL encoding replaces unsafe ASCII characters with % followed by hex codes. Essential for query parameters and special characters in URLs.

Are my encoded texts secure?

Encoding is NOT encryption — it's easily reversible. Use proper encryption (AES) for sensitive data. These tools are for data formatting, not security.