7 tools
Encoding Tools
Encode and decode Base64, URLs and other transport-safe formats without sending values to a server.
Base64 Encoder
Encode Unicode text as Base64 for transport in configuration, headers and scripts.
Encoding Tools AaBase64 Decoder
Decode Base64 text back to UTF-8 so encoded payloads are easy to inspect.
Encoding Tools %URL Encoder
Percent-encode text for safe use in URLs, query strings and redirect parameters.
Encoding Tools /URL Decoder
Decode percent-encoded URL text into readable characters.
Encoding Tools &;HTML Entity Encoder
Encode reserved HTML characters so text can appear safely inside markup examples.
Encoding Tools <>HTML Entity Decoder
Decode HTML entities back into readable text for debugging copied markup.
Encoding Tools \uUnicode Escape and Unescape
Convert text to JavaScript-style Unicode escapes or decode Unicode escape sequences.
Encoding ToolsWhy these tools are safe to use
Tools in this category run in your browser and keep pasted input local. Use them for API debugging, test fixtures and day-to-day developer cleanup without creating an account.
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Request a developer tool
Tell us what you need to convert, validate, inspect or generate. We use requests to prioritize practical browser-based utilities for Lumarc DevTools.