Encode and decode URLs and edit query strings live. Two-mode tool — encode/decode any string, or paste a full URL and edit its parameters in a table.
Two-mode URL tool: paste any string to percent-encode or decode it, or paste a full URL to inspect and edit its query parameters in a table. The output URL rebuilds in real time as you change values.
?next= or ?redirect_uri= parameter on a login flow to verify it's pointing where you expect.encodeURIComponent exactly.%20 and + as spaces (form-encoded URLs).Privacy: Pure JavaScript using the browser's native URL and URLSearchParams APIs. Nothing transmits to any server.
Paste your text or full URL into the encode field and the tool percent-encodes special characters like spaces, ampersands, and question marks instantly. Everything runs in your browser as you type, so you can copy the encoded result immediately. To go the other way, switch to decode mode and paste an encoded string.
Yes. The tool runs entirely in your browser using JavaScript, so the URLs and parameters you paste never upload to any server. Nothing is sent, stored, or logged externally. You can use it for internal links, tokens, or sensitive query strings without an account or signup.
Encoding converts unsafe characters into percent codes, like turning a space into %20, so a URL stays valid when sent over the web. Decoding reverses that, converting percent codes back into readable characters. This tool does both: pick encode mode to escape text, or decode mode to make an encoded string readable again.
Yes. Paste a complete URL and the tool splits its query string into an editable table, showing each parameter name and value on its own row. Change, add, or remove parameters and the rebuilt URL updates live. This makes it easy to fix tracking tags or test different query values.
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