URL Encode/Decode
Encode and decode URLs and query strings online
What is the URL Encoder/Decoder?
Written and maintained by the BitConvert team · Feb 27, 2026
The URL Encoder/Decoder applies percent-encoding to make text safe for use inside web addresses, and reverses it to reveal the original characters. Because URLs may only contain a limited set of ASCII characters, anything else -- spaces, ampersands, slashes, question marks, accented letters, or emoji -- must be replaced with a percent sign followed by its hexadecimal byte value, such as %20 for a space.
The tool offers both encoding modes used on the web. Full-URI encoding preserves the structural characters that separate parts of an address (like : / ? # and &), which is right when you already have a complete URL. Component encoding escapes those reserved characters too, which is what you need when a single value, such as a search term or redirect target, is going into one query parameter. Decoding turns any percent-encoded string back into readable text.
Key Features
Two Encoding Modes
Encode a whole URI while keeping separators intact, or encode a single component so reserved characters are fully escaped.
Reliable Decoding
Convert percent-encoded sequences back to plain, readable text and flag strings that are not valid encoding.
Unicode Aware
Handles non-ASCII characters by encoding them as their UTF-8 byte sequences so international text survives the round-trip.
Instant Copy
Grab the encoded or decoded output with a single click to drop straight into a link, request, or codebase.
Common Use Cases
Encode a search phrase with spaces and symbols before appending it to a query string so the request parses correctly. Decode a tracking or redirect URL to read the original destination hidden inside its parameters. Safely pass an email address or file path as a single query value using component encoding. Debug why a link breaks by decoding it to see exactly which characters were escaped and whether the encoding mode was wrong.
Frequently Asked Questions
Last updated: Feb 27, 2026