URL Encoder
URL-encode special characters in URLs and query strings. Converts spaces, symbols and non-ASCII characters to percent-encoded format.
About the URL Encoder
A URL encoder (percent-encoder) converts spaces, symbols, and non-ASCII characters in web addresses into standardized percent-encoded sequences (`%XX`). Web URLs can only contain a specific set of safe ASCII characters; special characters must be encoded to prevent broken links and query parsing errors.
Characters with reserved syntactic meanings in URLs (such as `?`, `&`, `=`, `/`, `#`) indicate protocol boundaries, paths, query parameters, and anchor fragments. When passing text that contains these characters as parameter values (such as a search query containing an ampersand: "Rock & Roll"), encoding converts the ampersand to `%26` so the web server does not mistake it for a parameter separator.
Spaces are converted to either `%20` (standard percent-encoding) or `+` (application/x-www-form-urlencoded format). This tool handles full UTF-8 characters, ensuring international alphabets and emojis encode reliably.
Original text: `Search query: Books & Coffee!` Percent-encoded output: `Search%20query%3A%20Books%20%26%20Coffee%21`
Tips for best results
- Encode individual query parameter values rather than the entire URL; encoding the full address will replace 'http://' slashes with '%2F', breaking the link.
- Spaces can be represented by '%20' or '+'; '%20' is preferred for general URI standards while '+' is common in form submissions.
- Always URL-encode user-generated input before appending it to redirect URLs to prevent security vulnerabilities like parameter injection.
How to use the URL Encoder
Why use Toolseza for URL Encoder?
Use this tool as often as you need with no paywalls, premium tiers, or hidden daily calculation quotas.
All calculations and file manipulations run inside your web browser. Your inputs are never sent to a cloud server.
Results update in real-time as you type or adjust settings, with instant one-click copy and export capabilities.
Works natively on smartphones, tablets, laptops, and desktop computers with zero installation or account creation.
Editorial Standards & Verification: All formulas, algorithms, and conversion factors implemented on Toolseza adhere to openly documented international standards (ISO, NIST, BIPM, W3C). Results are verified against benchmark reference datasets before publication.
Frequently Asked Questions
Is URL Encoder free to use?
Yes — URL Encoder is completely free, unlimited, and requires no sign-up.
What characters need to be URL-encoded?
Spaces, special characters and non-ASCII characters must be encoded. Spaces become %20 or +, & becomes %26, = becomes %3D, and so on.
Does the output follow the standard spec?
Yes — output follows the standard format, so it's compatible with other tools and libraries.
Does it work on mobile and tablet?
Yes — URL Encoder works on any modern browser, including mobile and tablet, no app required.