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 represents bytes as text for transport; it increases size and does not compress or encrypt data.
- 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 text whose HTML-sensitive characters you want to encode or decode.
- Select HTML Entity Encode or HTML Entity Decode.
- Execute to convert characters such as angle brackets and ampersands.
Tip: Entity encoding is context-specific and is not a complete HTML sanitizer or XSS defense.
- Paste UTF-8 text (for text → hex) or a valid hex byte string.
- Select UTF-8 Text to Hex or Hex to UTF-8 Text.
- 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, encode HTML-sensitive characters, or flip between UTF-8 text and hex without installing anything.
It's fast, free, and built to keep your data local. Bookmark it for your next debugging session.