URL Encoder / Decoder — Free Online Tool
RFC-3986 URL encoding and decoding.
How to Use the URL Encoder / Decoder
The url encoder decoder is engineered for speed — most users get to a clean answer in under ten seconds. Here's the three-step workflow:
-
Step 1
Pick Encode to percent-encode a URL or query parameter, or Decode to reverse it.
-
Step 2
Paste your text. The tool processes it instantly — no Submit click required.
-
Step 3
Copy the result with one click. Encoded output follows RFC 3986; decoded output is UTF-8 safe.
Benefits of Using Our URL Encoder / Decoder
Not every online text tools tool respects your time. This one does. Here's what you get when you choose BizNY:
- RFC-3986-compliant encoding using the browser's native encodeURIComponent — guaranteed to match how servers parse URLs.
- Safe decoding with error handling — malformed sequences show a clear error rather than silently producing garbage.
- Full UTF-8 support: emoji, accented characters, non-Latin scripts all encode and decode correctly.
- Live (as-you-type) and click-to-run modes both work.
- Completely browser-based — great for URLs that contain auth tokens or other sensitive query parameters.
- One-click copy to paste the result into a URL bar, API request, or email.
The Growing Popularity of the URL Encoder / Decoder
URL encoding is one of those foundational web skills that surprise-tests every developer monthly. Query strings with spaces, search URLs with special characters, API requests with complex filters, deep links in emails — they all need percent-encoding to travel safely through the URL layer. The URL encoder/decoder is a workhorse tool for developers, marketers building tracking URLs, and support engineers debugging customer-facing links. Its usage has climbed alongside the rise of URL-based campaign tracking (UTM parameters, click-through redirects) and low-code automation platforms that often require hand-encoded strings.
Who uses the url encoder decoder?
- Developers building URLs, query strings, and API requests
- Marketers constructing UTM-tagged tracking URLs
- Support engineers decoding customer-shared links
- QA testing URL handling across browsers
Frequently Asked Questions
Common questions about the url encoder decoder — if you have something else, drop us an email at support@bizny.co.
What's the difference between encodeURI and encodeURIComponent?
encodeURI leaves URL-reserved characters like / ? & : intact (it's meant for whole URLs). encodeURIComponent encodes them too (it's meant for individual components like a single query parameter). Our tool uses encodeURIComponent, which is the safer choice when you're encoding a value going into a URL.
Why does my space become %20 (not +)?
Per RFC 3986, spaces encode to %20. The + form is only valid in application/x-www-form-urlencoded (form submissions), not in general URL paths. We use %20 because it's universally correct.
How do I encode a whole URL vs. just a parameter?
For a whole URL, encode only its parameter values — not the scheme, host, or slashes. Our decoder gracefully handles either.
Does it handle emoji?
Yes. Emoji and all Unicode characters are encoded as UTF-8 byte sequences, each byte expressed as %XX.
Is my URL private?
Yes — everything is processed locally in your browser. URLs with auth tokens or session cookies never hit our server.
200+ more free tools — all on BizNY
Calculators, converters, code formatters, text utilities, and web tools — every one of them free, browser-based, and built to US standards.
Browse all tools →