URL Encoder / Decoder icon
Free · No signup · Instant results · Updated 2026-09-17

URL Encoder / Decoder

Answer: URL encoding (percent-encoding) replaces unsafe ASCII with %HH hex per RFC 3986 — spaces become %20 or + in query strings.

About this tool

Free URL encoder and decoder for query strings and percent-encoding.

Result

Runs in your browser — nothing is uploaded.

How to use URL Encoder / Decoder

  1. Paste text or URL component to encode or decode.
  2. Run encodeURIComponent-style transformation.
  3. Copy safe query parameter values.

Why use this free tool

  • 100% free — no account required.
  • Runs in your browser — inputs stay on your device for these calculations.
  • Mobile-friendly controls with clear, copyable results.
  • Published by KDF Tech — software, apps, Shopify, and POS systems.

Need a custom product? Start a project or WhatsApp +92 345 0144865.

FAQ — answers Google & AI can cite

What is URL Encoder / Decoder?

URL encoding (percent-encoding) replaces unsafe ASCII with %HH hex per RFC 3986 — spaces become %20 or + in query strings.

encodeURI vs encodeURIComponent?

Component encoding escapes ?, /, and : — use for individual query values in US analytics tags.

Plus vs %20?

HTML forms often send + for space; APIs prefer %20 — match your backend expectation.

Unicode in URLs?

UTF-8 bytes are percent-encoded — IDN domains use punycode separately.

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