URL Encoder & Decoder
Encode special characters into percent-encoded URL formats (RFC 3986), or decode encoded query parameters back to readable plain text. 100% browser-side privacy.
12 Ways Developers Use URL Encoding
Essential web development applications for percent-encoding special characters in links and web APIs.
Safe Query Parameters
Encode search queries containing spaces, ampersands, or slashes to prevent HTTP GET request syntax errors.
OAuth & Redirect URIs
Encode destination callback URLs embedded inside OAuth 2.0 redirect_uri authentication parameters.
API Key & Token Transport
Pass secret tokens containing special symbols safely through HTTP request headers or query strings.
Social Media Share Links
Format custom pre-filled share text and target links for X (Twitter), WhatsApp, LinkedIn, and Facebook APIs.
Mailto & SMS Schemas
Encode subject lines and message bodies inside mailto:user@domain.com?subject=... and sms:... links.
E-Commerce Search Filters
Encode multi-word search terms, price ranges, and multi-category filters in web store URLs.
UTM Analytics Campaign Tracking
Format Google Analytics utm_source, utm_medium, and utm_campaign parameters cleanly.
REST API Endpoint Path Routing
Pass dynamic URI path segments containing slashes or spaces without triggering 404 routing errors.
Mobile App Deep Linking
Encode JSON objects or custom routing parameters inside native iOS and Android app deep links (e.g. app://...).
HTTP Parser & XSS Defense
Prevent malformed URL string injection attacks by encoding untrusted user input before rendering links.
Bulk Parameter Processing
Batch encode or decode multiple query strings or URL links simultaneously with instant preview feedback.
SEO Friendly Slug Inspection
Decode percent-encoded URL paths to audit human-readable permalinks for search engine optimization.
Why TyagiHub URL Encoder / Decoder?
Fast, reliable, and private browser-based utilities engineered for simplicity.
Instant Dual Mode Conversion
Switch between Component Mode (encodeURIComponent) and Full URL Mode (encodeURI) with 0ms latency.
100% Client-Side Privacy
All calculations execute locally inside your web browser. URL links and API tokens are never sent to external servers.
Quick Special Character Reference
Click any common reserved character (Space, &, =, ?, /, #) to insert or inspect its exact percent-encoded equivalent.
Frequently Asked Questions (FAQ)
Answers to common questions regarding URL encoding and percent notation.
What is the difference between encodeURI and encodeURIComponent?
encodeURI() is used for full URLs and preserves structural symbols like : / ? # & =. encodeURIComponent() is used for individual parameter values and encodes all special characters so they don't break the query string structure.
Why is a space encoded as %20 or +?
In standard percent-encoding (RFC 3986), space is represented as %20. In HTML form submission (application/x-www-form-urlencoded), spaces are represented as +. Our decoder automatically converts both %20 and + back into spaces.
Are my URLs stored or logged on your servers?
No. All calculations take place 100% locally in your web browser. No URLs or API keys are ever stored or logged on external servers.
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