Instant URL &
Percent-String Decoder

Unescape percent-encoded URLs, restore complex query strings, parse nested tracking macros, and convert multi-byte UTF-8 sequences in real time.

Decoded Plain Result

0 Params Found

Real-time percent-decode & query parser

Decoded Plain String

unescaped url

Extracted Query Parameters:

Parameter Key	Decoded Value

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Decoding Telemetry

Output Length: 0 Chars

Decoding Pass: 1st Pass (Direct)

Character Standard: UTF-8 Normalized

Decoding Standards

Common Percent-Encoded Hex Values

When URLs are encoded according to RFC 3986, ASCII and reserved symbols are translated into distinct hex sequences.

%20 or + (Space)

Whitespace Sequences

Spaces cannot exist natively in valid URLs. RFC 3986 uses %20, whereas form postbacks often substitute '+'.

%3A & %2F

Protocol & Path Delimiters

%3A represents a colon (:) and %2F represents a slash (/). Commonly seen when nesting destination URLs inside tracking callbacks.

%3F, %26 & %3D

Query & Parameter Tokens

%3F is '?', %26 is '&', and %3D is '='. Decoding these accurately reconstructs raw parameter key-value pairs.

%25 (Percent Sign)

Double-Encoding Artifacts

When an already encoded string is encoded again, '%' becomes '%25'. Recursive decoding unwraps nested multi-hop layers.

Traffic Privacy & Security

Ad networks decode and scan your query strings.
Shield your destination funnels with Cloaker.net.

Automated compliance scanners decode parameters to inspect affiliate networks and restricted tags. Cloaker.net executes traffic segmentation at global edge nodes in under 15ms, delivering compliant safe pages to bots while genuine visitors reach your offers.

Safe Page / Money Page Splitting

Sub-15ms Single-Hop Redirection

Tracker Support (Voluum, Keitaro, Binom)

Dynamic Device & ASN Routing

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Support & Guidance

Frequently asked questions

Technical answers regarding percent-decoding, query string extraction, and tracking safety.

What is a URL Decoder?

A URL Decoder reverses percent-encoding (such as converting '%20' back to a space or '%2F' back to a slash), restoring human-readable characters from encoded query strings and web addresses.

What is recursive / multi-layer URL decoding?

When a URL is passed through multiple redirect hops or trackers, it often gets encoded repeatedly (e.g., '%2520' instead of ' '). A multi-layer decoder runs consecutive decoding passes until all nested layers are completely unescaped.

What causes URIError: malformed URI sequence errors?

This happens when a percent sign ('%') is followed by invalid hexadecimal characters (e.g. '%ZZ') or an incomplete multi-byte UTF-8 sequence. This tool safely catches malformed sequences and unescapes what it can.

Why is URL decoding critical for auditing affiliate links?

Affiliate networks and ad trackers often conceal the final destination landing page inside encoded query parameters. Decoding the string reveals exact landing page destinations, callback webhooks, and tracking tokens.

Works seamlessly with your favorite ad networks, trackers, and traffic sources