Encoding
URL encoder/decoder
Encode and decode URLs, query params, and redirect links.
URL workspace
Edit, inspect, copy
https%3A%2F%2Fdevtoolgrid.com%2Fsearch%3Fq%3Ddev%2520tools%26lang%3Duk
More URL guides
URL Encoder and Decoder OnlineEncode and decode URLs and query parameters online with correct percent-encoding. Runs in your browser using native encode/decode behaviour.How to Encode and Decode a URL OnlineStep-by-step: encode text for safe use in a URL and decode percent-encoded URLs back to readable form, all in the browser.Percent-Encoding ExplainedWhat percent-encoding is, which characters are reserved in URLs, and how %XX sequences keep data and structure separate.Encode Query String Parameters Without Breaking the URLEncode query string keys and values correctly with URLSearchParams, urllib and PHP. Handle spaces, plus signs, ampersands, arrays and double encoding.Common URL Encoding MistakesThe usual URL encoding errors — encoding the whole URL, double-encoding, and missing spaces — and how to fix them.URL encoding for api requests - URL encoder and decoder online guideLearn how to use URL encoder and decoder for url encoder online, url decoder online, percent encode url. Practical browser-based workflow with no sign-up and clear output.URL Encoding Characters: The Complete Percent-Encoding Cheat SheetA percent-encoding table for every reserved and unsafe URL character — space, &, ?, #, /, +, quotes, dashes and non-ASCII — with the rules for which characters need encoding in which part of a URL.URL Encode a Space: %20 vs + and When Each Is CorrectWhen to URL encode a space as %20 and when a plus sign is right. The difference between percent-encoding and form encoding, and how to avoid double-encoding.URL Encoder JavaScript: encodeURIComponent vs encodeURIWhich JavaScript URL encoder to use and when: encodeURIComponent, encodeURI, escape, and URLSearchParams — with the characters each one misses.Percent Encoding Decoder: Convert Percent Encoding to TextDecode percent-encoded strings back to readable text. How %XX escapes map to UTF-8 bytes, how to spot double encoding, and what to do with malformed input.URL Encode a String: Encoding Values SafelyHow to URL encode a string in JavaScript, PHP, Python and the shell, which characters get escaped, and why you encode values rather than whole URLs.URL Encode Base64: Why base64url ExistsBase64 output contains + and / which break URLs. How base64url solves it, when to percent-encode instead, and how to convert between the two.URL Encoding Ampersand: Escaping & and @ in Query StringsWhy an unencoded ampersand splits your query parameter in two, how to encode & and @ correctly, and how HTML entities differ from URL encoding.URL Encode Colon: Handling : , and - in URLsWhen a colon, comma or hyphen needs percent-encoding in a URL, which of them are reserved, and where context changes the answer.URL Encode Brackets: Square and Curly Braces in URLsWhen square brackets and curly braces need percent-encoding, why PHP-style array parameters use them unencoded, and what breaks if you get it wrong.URL Encode Backslash: Why \ Is Not a Path SeparatorHow browsers treat a backslash in a URL, why it must be encoded as %5C, and the security problems unencoded backslashes cause in redirects.URL Encode Asterisk: When * Needs EscapingWhether an asterisk needs URL encoding, why encodeURIComponent leaves it alone, and when RFC 3986 strictness matters for signatures.URL Encode Apostrophe: Single Quotes in URLsWhether an apostrophe needs URL encoding, how names like O'Brien behave in query strings, and why encoding it does not protect against SQL injection.Percent Encoding URL: The Rules Behind %XXHow percent encoding works in URLs — reserved and unreserved sets, UTF-8 byte expansion, context rules for path versus query, and canonical form.URL Encoder C#: Which .NET Method to UseUri.EscapeDataString, WebUtility.UrlEncode and HttpUtility.UrlEncode compared — which encodes spaces as %20, which uses +, and which to pick.URL Encode Command Line: Encoding in Bash and curlHow to URL encode and decode from the shell — curl --data-urlencode, jq @uri, python one-liners — and why pure-bash loops usually get it wrong.Percent Encoding Rust: Encoding URLs with percent-encoding and urlHow to percent-encode in Rust using the percent-encoding crate, choose the right character set, and let the url crate handle query strings.URL Encoder for SVG: Inline SVG in CSS Without Base64Why URL-encoding an SVG data URI beats Base64 — smaller output, still gzip-friendly — plus exactly which characters must be escaped in CSS.URL Encoded Content Type: application/x-www-form-urlencodedWhat the url encoded content type means, how a form-urlencoded body differs from a query string and from JSON, and when to use each.URL Encode Password: Credentials in Connection StringsWhy passwords in database URLs and connection strings must be percent-encoded, which characters break them, and safer alternatives to embedding credentials.URL Encoding Abuse: Attack Attempts and How to Stop ThemHow attackers use double encoding, overlong UTF-8 and mixed encodings to bypass filters, and why parser-based validation beats string matching.
Encoding
url encoder decoder online on DevToolGrid
URL encoder/decoder is built for the search intent behind "url encoder decoder online": a fast, browser-based developer tool that helps with API debugging, data formatting and everyday coding tasks without sign-up.
What this online developer tool is best for
Use it when you need quick results for url encoder online, url decoder online. The page has its own URL, localized metadata and related tools so developers can bookmark it, share it and return to the same workflow.