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Encodeur / Décodeur URL

URL encode decode tool: support URL encoding and decoding with special characters and bulk for development, with one-click copy, offline.

Mode d'emploi

Collez du texte et choisissez Encoder ou Décoder ; l’encodage utilise encodeURIComponent, les espaces deviennent %20.

Overview

URL Encode/Decode is an Encoding tool. URL encode decode tool: support URL encoding and decoding with special characters and bulk for development, with one-click copy, offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of URL Encode/Decode: Paste text and choose encode/decode; spaces become %20. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use URL Encode/Decode offline or on poor network — all calculations stay local and private.
  • Hash and verify integrity
  • Escape HTML/Unicode to avoid injection

How to use

  1. 1 Paste text and choose encode/decode; spaces become %20..
  2. 2 Choose encode/decode/hash and options
  3. 3 Review highlighted errors and counts
  4. 4 Copy or download the result

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Huge payloads may use more memory
  • Whitespace and padding matter
  • Hashing is irreversible

FAQ

Will my data be uploaded?
No. Everything runs locally in your browser.
Why did decoding fail?
Illegal characters or wrong charset are common causes.
How is URL Encode/Decode different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “urlencode, urldecode” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
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Tous les calculs s’exécutent localement dans votre navigateur ; aucune donnée n’est envoyée.