Encoder Workspace
Choose an operation, paste your text, and preview results instantly.
- Paste or type text into the data field.
- Select Base64 Encode or Base64 Decode.
- Press Execute (or use the shortcut) to process the text.
- Copy or tweak the result as needed.
Tip: Base64 encode compresses binary for transport, while decode helps inspect payloads.
- Paste the query string, fragment, or URL snippet.
- Select URL Encode or URL Decode.
- Execute to generate a safe URL or readable text.
- Copy the result for redirects, APIs, or analytics parameters.
Tip: URL encode replaces spaces with + and special characters with percent escapes.
- Provide HTML you want to sanitize or unescape.
- Select HTML Encode or HTML Decode.
- Execute to convert between raw HTML and safe entities.
Tip: Encode before embedding user content to avoid cross-site scripting.
- Paste UTF-8 text (for binary → hex) or a valid hex string.
- Select Binary to Hex or Hex to Binary.
- Execute to switch between the two representations.
Tip: Hex is ideal for debugging raw bytes or verifying cryptographic payloads.
Why people use it
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Private by default
Every conversion runs in your browser so your data never leaves your device.
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Fast & flexible
Swap between encoding and decoding operations without reloads.
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Developer friendly
Copy-ready output and keyboard accessible controls make quick work of data prep.
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Steganography ready
Hide text in PNG images with optional encryption using our in-browser tool.
About
UniversalEncoderDecoder.com is your toolkit for safe and reliable conversions. Use it to prepare API payloads, sanitize HTML, or flip between binary and hex without installing anything.
It's fast, free, and built to keep your data local. Bookmark it for your next debugging session.