Free URL Encoder/Decoder Tool — Encode, Decode, Analyze, Export | ToolzAll

URL Encoder/Decoder — Free Online Tool

v1.0
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Character analysis

Shows distribution of alphanumeric, spaces, reserved, and non-ASCII characters for input vs output.

Line-by-line results

# Input Operation Output Status
Use this table to inspect individual lines and troubleshoot encoding/decoding.

Share your encoded/decoded result

Sharing opens the native app or web intent with your current output and page link.
Tip: Use “Component Encoding” for query parameter values; use “Percent Encoding” for full URLs to preserve reserved characters. This distinction mirrors the behavior difference between encodeURI and encodeURIComponent.

What is URL encoding?

URL encoding (percent encoding) converts unsafe characters into a standardized format so URLs can be transmitted safely across the web. It replaces characters with a percent sign followed by two hexadecimal digits, ensuring browsers and servers interpret parameters correctly and consistently.

Use URL encoding for query strings, non-ASCII characters, spaces, and reserved symbols to prevent broken links and data loss. Developers and digital marketers rely on encoding to maintain reliable tracking, analytics, and application routing at scale.

URL encoder vs component encoder

Use full URL encoding to keep reserved characters like /, :, ?, & and = intact while making the entire link safe. Use component encoding for parameter values to avoid misinterpretation of special characters and ensure accurate parsing. This approach aligns with encodeURI (for full URLs) and encodeURIComponent (for components) best practices.

Features and benefits

  • Percent encoding: Standard URL encoding for safe transmission of complete URLs and paths.
  • Component encoding: Dedicated encode/decode for query parameter values.
  • Base64 support: Encode/decode arbitrary data in Base64 for transport and storage.
  • Character sets: UTF-8 and ISO-8859-1 for compatible encoding workflows.
  • Bulk processing: Process multiple lines with per-line status and output.
  • Live analysis: Character counts, reserved vs non-ASCII breakdown, and charts.
  • Tabular results: Inspect line-by-line inputs, operations, and outputs.
  • Export options: Copy, TXT, JSON, CSV, and HTML exports for collaboration.
  • Accessibility: Keyboard-friendly controls and clear focus styles.
  • Responsive UI: Mobile-first design with adaptive grids and buttons.
  • Dark/light mode: Toggle theme for comfort and readability.
  • Social sharing: Share to Facebook, X/Twitter, LinkedIn, Pinterest, Instagram, TikTok, WhatsApp, Telegram, Snapchat, WeChat, Reddit, and Email.

Keyword density and on-page optimization

To maximize visibility, this page targets high-intent keywords such as “URL encoder,” “URL decoder,” “percent encoding,” “encode URL,” “decode URL,” “encodeURIComponent,” “encodeURI,” “query string,” and “Base64 encoding.” Content structure, internal linking, and schema help search engines understand tool functionality and relevance to developer workflows and SEO use cases.

Top keyword phrases

  • Top 1-word: URL, encoding, decoder, encoder, percent
  • Top 2-word: URL encoder, URL decoder, percent encoding, component encoding, Base64 encoding
  • Top 3-word: free URL encoder, online URL decoder, query string analyzer, encode URL parameters, decode URL parameters

Frequently asked questions

What is percent encoding in URLs?

Percent encoding converts unsafe characters (spaces, reserved symbols, non-ASCII) into a safe format using % followed by hex values. This ensures reliable URL transmission and parsing across browsers, servers, and APIs.

When should I use encodeURI vs encodeURIComponent?

Use encodeURI for whole URLs to preserve reserved characters; use encodeURIComponent for components like parameter values to encode special characters more aggressively for precise parsing.

Does this tool support Base64?

Yes. You can encode and decode Base64 for arbitrary text data, then combine it with URL-safe patterns when embedding values in query strings.

Can I process multiple URLs at once?

Yes. Paste multiple lines and choose your operation; the table shows per-line status and output for easy review.

Is the tool free and secure?

It runs entirely in your browser using client-side JavaScript. No data is sent to servers, making it fast, private, and free to use.

Conclusion

This free URL Encoder/Decoder streamlines encoding, decoding, and analysis for complete links and components. With charts, tables, exports, and social sharing, it’s a comprehensive solution for developers, SEOs, and marketers who need reliable URL handling at scale.