UD5 Toolkit
Atbash Cipher – Reverse Alphabet Encryption
Apply the ancient Atbash cipher (A→Z, B→Y) to any text. Since it's self‑inverse, encoding and decoding use the same function. Fun for code puzzles.
String Obfuscator - Online Text Encoder to Hide Content
String Obfuscator - Online Text Encoder & Decoder
Hide, encode, or transform text into unreadable forms. Supports Base64, Hex, Caesar cipher, ROT13, reverse, and HTML entities.
Frequently Asked Questions
A string obfuscator is an online tool that transforms readable text into an unreadable or encoded format. It helps hide the original content from casual viewing, but it is not encryption and does not provide true security.
This tool supports Base64, Hexadecimal, ROT13, reverse string, HTML entities, and Caesar cipher (with custom shift). Some methods are symmetric (ROT13, reverse) and others can be fully decoded using the corresponding decode mode.
No. Obfuscation merely disguises the text without a secret key. Anyone who knows the encoding method can easily reverse it. For real security, use encryption algorithms like AES with a strong password.
Switch the mode to Decode, paste the obfuscated text into the input field, and select the same method that was used for encoding. The tool will instantly show the original readable text in the output area. The Swap button can also help quickly exchange input and output fields.
Common use cases include hiding email addresses from bots, quickly encoding data for URLs, debugging, learning about encoding schemes, or making content temporarily unreadable for privacy in screenshots.
Reptile Hide Size Calculator – Tight Fit for Security
Calculate the appropriate hide box dimensions based on your reptile’s length and girth. A snug hide reduces stress and promotes natural behavior.
Polybius Square Cipher Tool – Online Encode & Decode
Encrypt or decrypt text using the classical 5x5 Polybius square. Excludes J or merges I/J.
Image Steganography Encoder - Online Hide Text in Picture Pixels
Hide a secret message within an image by modifying LSB of pixels. Also decode. Pure canvas manipulation, local only. Fun privacy tool.
Base58 Encoder & Decoder - Online Bitcoin-Style Address Tool
Encode or decode data to/from Base58 (Bitcoin alphabet). Useful for cryptocurrency address generation testing. Fully local, no data sent.
URL Component Encoder/Decoder - Online encodeURIComponent
Encode or decode a string for use in a URL query parameter. See the raw and encoded versions. Dev tool.
Geohash Encoder/Decoder - Online Lat/Lon to String
Encode latitude/longitude into a geohash string and decode a geohash back to coordinates with precision info. Local algorithm.
Hashid Encoder/Decoder - Online Short Unique IDs from Numbers
Convert integers into short, unique, YouTube‑style IDs (hashids) and decode them back. Customize salt and minimum length.
File to Base64 Encoder/Decoder - Online Download
Encode any file into a Base64 string that you can copy, or decode a Base64 string back to a downloadable file. Pure frontend.
Text to Emoji Cipher - Online Encode Secret Messages
Convert your text into a string of emojis using a simple substitution cipher. Share secret messages that look fun. Decode them with the same tool. All local.
Email Obfuscator - Online Protect Address from Bots
Hide your email address from scrapers by encoding it using HTML entities and CSS tricks. Still clickable for real users. Local generator.
String to Escaped HTML - Online Protect Against XSS
Instantly convert plain text into HTML‑safe escaped characters for secure display in web pages. Prevent cross‑site scripting. All processing local.
Steganography Text Hider - Online Conceal Secret Message
Hide a secret message inside a normal text using zero-width characters or invisible ink. Copy the result. Decode with the same tool.
HTML Escape/Unescape - Online Encode Special Characters
Escape HTML special characters to prevent XSS attacks, or unescape HTML entities back to original text. Essential for web developers. Runs locally.
Image Watermarker - Online Add Text or Logo to Photos
Protect your images by adding a text or image watermark. Adjust transparency, position, and rotation. All image processing is done locally; no upload to server.
Image to Base64 Converter - Online Encode Picture to Text
Transform any image into a Base64 data URI for embedding directly into HTML, CSS, or JSON. Drag and drop support. Entirely browser-side conversion.