Use the tool below
Encode and decode URL strings and query parameters. Free URL encoder/decoder for APIs, OAuth redirects, and debugging.
What happens when you run URL Encoder/Decoder
Paste or upload input into the widget above. Parsing runs for this URL encoder decoder session, then you copy or download the transformed result. Nothing is published to a browseable directory of other users’ jobs.
How to use URL Encoder/Decoder
1. Paste URL or query string
2. Choose Encode or Decode
3. Process
4. Copy safe URL
2. Choose Encode or Decode
3. Process
4. Copy safe URL
Component Encoding Rules
encodeURI vs encodeURIComponent differ: paths allow reserved characters that query values must escape. Double-encoding is a common bug (“%2520”). Decode step-by-step when debugging redirect chains.
Unicode & IDN
Internationalized domains use Punycode in DNS. Percent-encoding handles non-ASCII path segments—verify destination servers accept UTF-8 paths.
Input/output contracts
- Inputs: see tool options
- Outputs: see tool options
- Transport: HTTPS uploads
- Retention: temporary (~2 hours)—not permanent cloud storage
How URL Encoder/Decoder differs from typical alternatives
Compared with URL encoding tools such as URL Encoder/Decoder: Simple encoder sites handle paste-only input without pairing encoding utilities with privacy-focused temporary file handling. Big File Sharing focuses on free one-off jobs, no mandatory signup, and short-lived temporary files instead of account-centric project history.
Frequently asked questions about URL Encoder/Decoder
Is URL Encoder/Decoder free to use?
Yes. URL Encoder/Decoder is free with no paywalled export on this page. We fund operations with display advertising—not by selling upload contents.
What exactly can URL Encoder/Decoder process?
Inputs: formats listed in the widget. Outputs: formats listed in the widget. encodeURI vs encodeURIComponent differ: paths allow reserved characters that query values must escape. Double-encoding is a common bug (“%2520”). Decode step-by-step when debugging redirect chains.
How long are files from URL Encoder/Decoder kept?
Tool uploads and results are temporary and automatically removed after about 2 hours. Download anything you need before then; we do not offer permanent archives on this path.
Do I need an account for this URL encoder decoder?
No account is required for standard use of this tool. Open the page, run the job, download the result.
When should I use URL Encoder/Decoder instead of desktop software?
Use URL Encoder/Decoder for quick, one-off URL encoder decoder tasks on machines where installs are blocked or overkill. Prefer desktop/CLI tools for bulk automation, strict offline compliance, or multi-hour encoding jobs.
Privacy note: Transfers use HTTPS. Files for tools are temporary (~2 hours) and are not listed in a public gallery. Details: Privacy Policy.