Free URL Encoder Decoder Online | Base64 & HTML Entity Encoder

URL Encode
Encode text for use in URLs
URL Decode
Decode URL encoded text
Base64 Encode
Encode text to Base64
Base64 Decode
Decode Base64 to text
Escape HTML
Convert HTML characters to entities
Unescape HTML
Convert HTML entities to characters
✓ 100% Free⚡ Instant Conversion🔒 Privacy First

Base64 & HTML Entity Encoder - Text Encoding Converter

Free online text encoder and URL decoder. Encode/decode URL, Base64, HTML entities instantly. Perfect tool for developers, web designers, SEO professionals.

Key Encoding & Decoding Features

Professional URL encoder decoder online with multiple encoding formats

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URL Encoder Decoder Online

Free url encoder decoder online for instant URL encoding and decoding. Perfect url encode decode tool for web development.

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Base64 Encoder Decoder

Base64 encoder decoder free for data encoding. Base64 encode decode online with MIME-compliant formatting.

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HTML Entity Encoder

Html entity encoder and decoder for safe HTML display. HTML escape unescape tool to prevent XSS attacks.

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URI Component Encoding

URI encoder decoder with percent encoding tool. RFC 3986 compliant for proper URI formatting.

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Online Text Encoder

Comprehensive online text encoder supporting multiple formats. Perfect text encoding converter for all needs.

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Instant Conversion

Real-time encoding and decoding. No server uploads needed. All processing done client-side for privacy.

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Batch Processing

Encode or decode multiple texts efficiently. Easy copy and swap between input and output.

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Privacy & Security

100% local processing. No data storage on servers. Your text never leaves your browser.

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Professional URL Encoder Decoder Online & Text Encoding Converter

Our url encoder decoder online is trusted by developers worldwide. Encode and decode URL parameters, use our base64 encoder decoder free for API authentication, or protect your web app with our html entity encoder. Whether you need a url encode decode tool, base64 encode decode online functionality, or html escape unescape tool, we provide a complete online text encoder and text encoding converter solution. Perfect for web development, API integration, and security testing.

How to Use

Encode and decode text with our url encoder decoder online in simple steps

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Select Encoding Type

Choose from URL Encode, Base64, HTML Entity, or other encoding methods based on your needs.

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Enter Your Text

Paste or type the text you want to encode or decode into the input area.

03
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Get Instant Results

See the encoded or decoded text appear instantly in the output area.

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Copy or Swap

Copy the result or swap input/output to continue encoding/decoding chain operations.

💡Pro Tips for Encoding & Decoding

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For URL Parameters

Use URL encoding when passing special characters in query strings to ensure they don't break your links.

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For API Authentication

Base64 encode credentials for Basic Authentication headers in API requests.

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For HTML Content

Always escape HTML entities when displaying user-generated content to prevent XSS attacks.

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For Data Privacy

All encoding happens in your browser - your data never leaves your device for complete privacy.

Real-World Use Cases & Examples

See how professionals use our url encoder decoder online and text encoding tools

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Web Developer - URL Parameter Encoding

❌ Problem

Developers need to encode URL parameters to prevent breaking links with special characters in query strings.

💡 Solution

Use our url encoder decoder online to encode parameters before adding them to URLs for safe transmission.

✅ Result

Safe URLs with no broken links. Proper data transmission. Save hours debugging URL issues.

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API Developer - Base64 Data Transfer

❌ Problem

API developers need to encode binary data or credentials in Base64 format for authentication and data transfer.

💡 Solution

Use base64 encoder decoder free to encode data for API authentication headers and secure data transmission.

✅ Result

Secure data transmission. Proper API authentication. Compliance with API standards.

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Content Creator - HTML Entity Safety

❌ Problem

Content creators need to display code examples in HTML without breaking page structure or causing security issues.

💡 Solution

Use html entity encoder to escape HTML characters for safe display in web pages.

✅ Result

Code examples display correctly. No XSS vulnerabilities. Proper content rendering.

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SEO Professional - URL Optimization

❌ Problem

SEO professionals need to analyze and optimize encoded URLs for better search engine rankings.

💡 Solution

Use online text encoder to decode URLs and understand their structure for SEO optimization.

✅ Result

Better URL structure. Improved SEO performance. Cleaner URLs for search engines.

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Security Tester - XSS Prevention

❌ Problem

Security testers need to test HTML escaping mechanisms to identify and prevent cross-site scripting vulnerabilities.

💡 Solution

Use our html escape unescape tool to test HTML entity encoding and ensure proper escaping.

✅ Result

Identify security vulnerabilities. Prevent XSS attacks. Secure web applications.

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Email Developer - MIME Encoding

❌ Problem

Email developers need Base64 encoding for email attachments and content to ensure proper MIME formatting.

💡 Solution

Use base64 encoder decoder for MIME-compliant email encoding of attachments and special content.

✅ Result

Proper email formatting. Attachments work correctly. Standard compliance achieved.

Ready to Try Our URL Encoder Decoder Online?

Join thousands of developers who trust our base64 encoder decoder free tool, html entity encoder, and text encoding converter for secure, reliable encoding and decoding.

✓100% Free
✓Instant
✓Privacy First
✓RFC Compliant

Frequently Asked Questions

Everything you need to know about our encoding and decoding tools

Simply select 'URL Encode' or 'URL Decode' from the encoding type dropdown, paste your text into the input area, and the url encoder decoder online will instantly convert it. Perfect for encoding URL parameters with special characters or decoding existing URLs.
Yes! Our base64 encoder decoder is completely free with unlimited usage. No registration required. Use our base64 encode decode online tool as many times as you need for data encoding, API development, or any other purpose.
A url encode decode tool is used to convert special characters in URLs to a safe format. It's essential for web developers when passing data in URL parameters, ensuring links don't break with spaces, ampersands, or other special characters.
Our online text encoder works entirely in your browser using JavaScript. When you enter text and select an encoding type, it applies the appropriate algorithm (URL encoding, Base64, HTML entities) to convert your text. No server uploads - everything is processed locally for privacy.
Absolutely! The html entity encoder is essential for preventing XSS (Cross-Site Scripting) attacks. It converts HTML special characters like <, >, &, and quotes to their entity equivalents, making it safe to display user-generated content without executing malicious code.
Yes, our base64 encode decode online tool is completely safe. All encoding and decoding happens locally in your browser. Your data is never transmitted to our servers, ensuring complete privacy. Base64 itself is an encoding method, not encryption, so don't use it for sensitive data protection.
A text encoding converter is a tool that transforms text from one encoding format to another. Our text encoding converter supports URL encoding, Base64, HTML entities, and more. It's essential for web development, data transmission, and ensuring text displays correctly across different systems.
Select 'Escape HTML' to convert HTML characters to entities (e.g., < becomes &lt;), or 'Unescape HTML' to convert entities back to characters. Our html escape unescape tool is perfect for safely displaying code examples or protecting against XSS vulnerabilities.
URL encoding (percent encoding) is specifically for making text URL-safe by encoding special characters as %XX. Base64 converts binary data to ASCII text using a specific alphabet. Use URL encoding for URLs and query parameters; use Base64 for data transmission, API authentication, and email attachments.
Yes! Our url encoder decoder online works both ways. Select 'URL Decode' to convert percent-encoded URLs back to readable text. This is useful for analyzing URLs, debugging web applications, or understanding what data is being transmitted in URL parameters.
100% secure. All encoding and decoding operations happen locally in your browser using JavaScript. Your text is never uploaded to our servers, stored, or transmitted anywhere. The online text encoder provides complete privacy for your data.
We support URL Encoding (percent encoding), URL Decoding, Base64 Encoding, Base64 Decoding, HTML Entity Escaping, and HTML Entity Unescaping. All encoding methods are standards-compliant and work with RFC specifications.
Absolutely! Our base64 encoder decoder free tool is perfect for API development. Use it to encode credentials for Basic Authentication headers, encode request/response data, or test API endpoints. It's an essential tool for any developer working with REST APIs.
Use our url encode decode tool to convert special characters. Spaces become %20, & becomes %26, = becomes %3D, and so on. This ensures your URLs work correctly and data is transmitted safely. Essential for any web application passing data in URL parameters.
Percent encoding (also called URL encoding) is a method to encode special characters in URLs using the % symbol followed by two hexadecimal digits. For example, a space becomes %20. It's defined in RFC 3986 and is essential for proper URL formatting.
While our current interface processes one text at a time, you can easily copy results and swap input/output to process multiple texts quickly. The instant conversion makes it efficient to encode or decode several texts in succession.
Once you've loaded the page, most encoding functions work offline since all processing is done client-side in your browser. However, you'll need an internet connection to initially access the tool.
HTML entity encoding converts HTML special characters to their entity representations. For example, < becomes &lt;, > becomes &gt;, and & becomes &amp;. This prevents browsers from interpreting these characters as HTML code, making it safe to display user input.
The html entity encoder prevents XSS by converting HTML special characters to entities. When user input is encoded before display, malicious <script> tags become harmless text like &lt;script&gt;, preventing code execution while still showing the content.
Yes! Our url encoder decoder follows RFC 3986 for URI encoding, and our Base64 implementation follows RFC 4648. HTML entity encoding follows W3C HTML specifications. You can trust our tools for standards-compliant encoding.
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Still Have Questions?

Our url encoder decoder online and base64 encoder decoder free tools are designed to be intuitive and easy to use. If you have additional questions about the html entity encoder, text encoding converter, or any other features of our online text encoder, feel free to explore the tool - all features are available instantly without signup.