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🔧FormatKit

URL Encoder

Encode text and URLs to URL-safe format

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Click to browse or drag and drop your file here
Supported formats: .txt,.text
Maximum file size: 10MB
Input length: 0 characters
Output length: 0 characters
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About this Tool

URL Encoder is a free, privacy-first tool built for developers. Encode text and URLs to URL-safe format

✓100% Client-Side: All processing happens in your browser. No data is ever sent to our servers.

✓Fast & Efficient: Instant results with no server roundtrips or delays.

✓Free Forever: No sign-up, no limits, no hidden fees. Use as much as you need.

✓File Support: Upload files directly or paste content. Your choice.

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Disclaimer

This tool is provided for informational and educational purposes only. All processing happens entirely in your browser - no data is sent to our servers. While we strive for accuracy, please verify critical data before use in production environments. FormatKit is not responsible for any data loss, corruption, or issues resulting from tool usage.

How to Use URL Encoder

Upload a file or paste your URL or text into the input field and it will be automatically encoded to URL-safe format in real-time. All processing happens in your browser - no data is sent to our servers.

Encoding Modes

  • Encode All (encodeURIComponent): Best for query parameters, form data, and special characters. Encodes everything including /, ?, &, =, etc.
  • Encode Full URL (encodeURI): Best for complete URLs. Preserves URL structure characters like /, :, ?, & while encoding spaces and special characters.

Features

  • Real-time encoding as you type
  • Two encoding modes - component or full URL
  • Copy encoded output with one click
  • Download as .txt file
  • Character count display for both input and output
  • Privacy-first - all processing in your browser

Common Use Cases

  • Encoding query parameters for APIs: Safely pass special characters in URL parameters like ?search=hello world becomes ?search=hello%20world
  • Handling special characters in URLs: Encode characters like &, =, #, @ that have special meaning in URLs
  • Creating shareable links with parameters: Build URLs with multiple parameters that contain special characters
  • Building GET request URLs programmatically: Construct API URLs with properly encoded parameters in your code
  • Email tracking links: Encode email addresses and tracking parameters in marketing URLs
  • Social media sharing: Encode URLs and text for sharing on Twitter, Facebook, LinkedIn

URL Encoding Reference

Common characters and their encoded equivalents:

  • space → %20
  • ! → %21
  • # → %23
  • $ → %24
  • & → %26
  • = → %3D
  • ? → %3F
  • @ → %40

FAQ

Q: What's the difference between URL encoding and Base64 encoding?

URL encoding (percent encoding) makes text safe for URLs by replacing special characters with %XX codes. Base64 encoding converts binary data to text using only alphanumeric characters, +, /, and =. Use URL encoding for URLs and query parameters. Use Base64 for binary data transmission in text format.

Q: Do I need to encode the entire URL or just parameters?

It depends on your use case. Use encodeURIComponent (Encode All mode) for query parameter values only. Use encodeURI (Encode Full URL mode) for complete URLs. Never encode the protocol (http://) or domain name - only encode the path and parameters.

Q: When should I use encodeURIComponent vs encodeURI?

Use encodeURIComponent when encoding individual parts of a URL (query parameter values, path segments). Use encodeURI when encoding a complete URL that already has proper structure. encodeURIComponent is more aggressive and encodes characters like / and ?, while encodeURI preserves them.

Q: Is my data secure?

Yes! All URL encoding happens entirely in your browser using native JavaScript functions. Your data never leaves your device and is never sent to our servers. The tool works completely offline after the initial page load.

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