TyagiHub Web Utilities

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.

Select Mode & Parameters
Query Component String Input String
Encoded Component String Processed Output
Input Length: 0 chars
Output Length: 0 chars
Percent Encoded Sequences: 0 sequences
Quick Special Character Reference
Space %20
& %26
= %3D
? %3F
/ %2F
# %23

12 Ways Developers Use URL Encoding

Essential web development applications for percent-encoding special characters in links and web APIs.

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Safe Query Parameters

Encode search queries containing spaces, ampersands, or slashes to prevent HTTP GET request syntax errors.

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OAuth & Redirect URIs

Encode destination callback URLs embedded inside OAuth 2.0 redirect_uri authentication parameters.

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API Key & Token Transport

Pass secret tokens containing special symbols safely through HTTP request headers or query strings.

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Social Media Share Links

Format custom pre-filled share text and target links for X (Twitter), WhatsApp, LinkedIn, and Facebook APIs.

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Mailto & SMS Schemas

Encode subject lines and message bodies inside mailto:user@domain.com?subject=... and sms:... links.

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E-Commerce Search Filters

Encode multi-word search terms, price ranges, and multi-category filters in web store URLs.

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UTM Analytics Campaign Tracking

Format Google Analytics utm_source, utm_medium, and utm_campaign parameters cleanly.

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REST API Endpoint Path Routing

Pass dynamic URI path segments containing slashes or spaces without triggering 404 routing errors.

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Mobile App Deep Linking

Encode JSON objects or custom routing parameters inside native iOS and Android app deep links (e.g. app://...).

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HTTP Parser & XSS Defense

Prevent malformed URL string injection attacks by encoding untrusted user input before rendering links.

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Bulk Parameter Processing

Batch encode or decode multiple query strings or URL links simultaneously with instant preview feedback.

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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.

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100% Client-Side Privacy

All calculations execute locally inside your web browser. URL links and API tokens are never sent to external servers.

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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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