URL Decoder — Decode URLs and Query Parameters Instantly

Decode percent-encoded URLs back to human-readable text. Works as a URL decoder, query string parser, and decodeURI/decodeURIComponent utility. Batch decode multiple URLs — all in your browser, no uploads required.

✓ 100% Client-Side ✓ decodeURI & decodeURIComponent ✓ Parses Query Parameters ✓ Batch Decode ✓ Export CSV / TXT / JSON ✓ Free Forever
URL Decoder
Paste an encoded URL to decode it
Decoded —
URL Components
Protocol —
Host —
Path —
Query Params —
URL Encoder
Encode plain text or a URL for transmission
Encoded —
Batch Decode / Encode
One URL per line — decode or encode them all at once
Results will appear here as a table
Export Results
Saeed Ahmed Saeed Ahmed jan 10, 2026

Why decode URL-encoded strings?

  • Debug web requests by reading encoded query parameters and URL fragments
  • Extract readable text from encoded API responses, redirect URLs, and webhooks
  • Inspect email tracking links and marketing campaign URLs
  • Quickly validate and parse query strings during web development
  • Decode encoded file paths and resource identifiers in logs

How to decode a URL – 3 simple steps

  1. Paste your encoded URL – paste a percent-encoded string (e.g., https%3A%2F%2Fexample.com%2Fpath) into the input field.
  2. Choose your decoding mode – select decodeURI for full URLs or decodeURIComponent for query strings and hash fragments.
  3. Get instant results – the decoded text appears instantly, along with a parsed breakdown of protocol, host, path, and query parameters.
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    URL decoder & encoder – features you’ll love

    • ✅ 100% browser‑based – your URLs never leave your device, ensuring complete privacy
    • ✅ Two decoding modes – decodeURI for full URLs, decodeURIComponent for query strings and fragments
    • ✅ Dual‑direction – decode URLs or encode plain text in one tool
    • ✅ URL parser – automatically extracts protocol, host, path, and query parameters from decoded URLs
    • ✅ Readable query params – query strings are displayed as a clean key‑value list
    • ✅ Batch processing – decode or encode multiple URLs line by line
    • ✅ Export results – download batch results as CSV, TXT, or JSON for further analysis
    • ✅ Copy & download – copy to clipboard or download single results as .txt
    • ✅ Works offline after first load – no internet connection required

    Why DataFrog’s URL decoder stands out

    • Privacy first – your URLs are never uploaded to our servers. Many online decoders log your data – we don’t.
    • Production‑ready accuracy – handles malformed or partially encoded strings gracefully without crashing.
    • Handles real‑world inputs – correctly decodes UTF-8, ASCII, and extended character sets.
    • Export capabilities – save your batch results as CSV, TXT, or JSON for documentation or further processing.
    • No signup, no watermarks – completely free for all your URL decoding needs.

    Supported URL formats

    • Percent-encoded URLs (e.g., https%3A%2F%2Fexample.com)
    • Encoded query strings (e.g., id%3D123%26name%3DJohn)
    • URL fragments (e.g., %23section-1)
    • Partial or malformed encoded strings
    • UTF-8 and extended character encodings (%C3%A9 for é)
    • Full URLs with protocol, host, path, query, and hash

    Common use cases for URL decoding

    • 📄 Web request debugging – decode query parameters from API URLs and redirects
    • 🔗 Email link analysis – inspect tracking and marketing campaign URLs
    • 🛠️ API development – decode encoded parameters sent to your endpoints
    • 📊 Data extraction – extract readable text from encoded log files
    • 🧩 Web scraping – decode URLs embedded in HTML and JavaScript

    Privacy & Security

    • 🔒 All processing happens locally in your browser using native JavaScript
    • 🚫 No data transmission – your URLs never touch our network
    • 🕵️ No tracking, no cookies, no third‑party analytics scripts
    • 💼 Safe for decoding sensitive API keys, tokens, and internal URLs

    Frequently asked questions (URL Decoder)

    Is this URL decoder really free?

    Yes, completely free. No premium tiers, no hidden fees, no watermarks. Decode as many URLs as you need, entirely within your browser.

    What is URL encoding (percent-encoding)?

    URL encoding, also known as percent-encoding, converts special characters in a URL into a format that can be safely transmitted over the internet. It replaces unsafe ASCII characters with a % followed by two hexadecimal digits. For example, a space becomes %20 and ? becomes %3F.

    What's the difference between decodeURI and decodeURIComponent?

    decodeURI decodes a complete URL but does not decode characters that are part of the URI syntax (like #, ?, &, /). decodeURIComponent decodes every percent-encoded character, including those used in query strings and hash fragments. Use decodeURI for full URLs and decodeURIComponent for query parameter values.

    Does it handle query string parameters?

    Yes. After decoding, the tool parses the URL and displays query parameters as a readable list of key-value pairs, making it easy to inspect API endpoints and web requests.

    Can I encode a URL as well?

    Yes! The right panel lets you encode plain text using either encodeURI or encodeURIComponent, making this a complete URL utility tool.

    Is my data uploaded to a server?

    No. The decoder runs entirely in your browser. Your input never leaves your computer – even if you paste thousands of URLs, everything stays local.

    Does it support batch decoding?

    Yes. Paste multiple URLs (one per line) into the batch textarea and click "Convert All" to decode or encode them all at once in a clean table view.

    What about non‑UTF‑8 characters?

    The tool uses JavaScript's native decodeURI/decodeURIComponent functions, which handle UTF-8 encoding correctly. Extended characters like %C3%A9 (é) are decoded accurately.

    How do I export batch results?

    After running a batch conversion, click the CSV, TXT, or JSON button in the export bar below the results table. The file will download automatically to your device.

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