URL Encoder / Decoder
Encode or decode URLs and query strings with full Unicode support.
URL encoder
Getting the encode/decode helpers ready to run in the browser.
About this tool
The Gearizen URL Encoder and Decoder helps marketers, developers, and analytics teams keep links clean and standards compliant. Paste any URL component or query string and the tool applies percent-encoding instantly, preserving characters that would otherwise break redirects or cause analytics noise. Because everything runs in your browser, you can safely prepare campaign parameters, sanitize file paths, and debug webhook callbacks without exposing data to outside services. The interface displays encoded and decoded views side by side, so you always understand how characters like spaces, ampersands, or Unicode glyphs are treated.
We built this encoder with everyday workflows in mind. Choose between RFC 3986 encoding for path segments or the application/x-www-form-urlencoded format for query parameters. Quickly switch directions to decode messy URLs pasted from logs or analytics dashboards. Helpful hints explain why spaces become %20, when plus signs indicate form encoding, and how to avoid double encoding when chaining redirects. Keyboard shortcuts, copy buttons, and an accessible layout keep the experience smooth across desktop and mobile devices.
The supporting content dives into SEO implications, such as preserving keyword-rich slugs, preventing duplicate content from malformed UTM parameters, and protecting campaign tracking in multilingual markets. You'll learn how to encode reserved characters safely, how to handle emojis or extended Unicode, and how to structure affiliate links that pass strict validation. Troubleshooting guides cover common platform-specific quirks, including social ad managers, CRM integrations, and static site generators.
For complete URL hygiene, explore related Gearizen tools like the Slugify generator for slug consistency, the Base64 Encoder for packaging binary data into query strings, and the QR Code Generator for sharing encoded URLs offline. Together they form a toolkit that keeps your marketing and engineering teams aligned on link governance. Bookmark the URL Encoder whenever you need to craft pristine hyperlinks, decode puzzling redirects, or train teammates on web-safe encoding best practices.
How to use
Paste the URL or component
Provide the string, path segment, or query parameter you need to encode or decode.
Select encode or decode
Toggle the direction and choose between RFC 3986 or form-style encoding when relevant.
Review encoded characters
Check how reserved characters, spaces, and Unicode glyphs have been transformed.
Copy the sanitized string
Copy the result back into analytics tags, application configs, or documentation.
Examples
| Scenario | Input | Output | Notes |
|---|---|---|---|
| Encode analytics parameters (form variant) | Variant: Form, Value: utm_campaign=Summer Launch | utm_campaign=Summer+Launch | Use form encoding when preparing query strings that expect plus signs for spaces. |
| Decode log entry | q%3DNext.js%2520tips | q=Next.js%20tips | Clarifies nested encoding from redirects. |
| Prepare path segment | 设计 | %E8%AE%BE%E8%AE%A1 | Encodes Unicode characters for safe routing. |
Help & FAQ
What should I encode?
Encode parameter values or path segments; avoid double-encoding whole URLs.
Why spaces become %20?
In URL encoding, spaces are %20; in application/x-www-form-urlencoded, '+' may be used.