URL Encoder/Decoder
Encode special characters in URLs and decode percent-encoded strings.
What gets encoded?
encodeURIComponent encodes all characters except A–Z a–z 0–9 - _ . ! ~ * ' ( ). Common substitutions:
Space→%20&→%26=→%3D+→%2B#→%23?→%3F/→%2FUse URL encoding when passing data in query strings, form submissions, or anywhere a URL needs to contain characters with special meaning in the HTTP spec.
How it works
1. Upload
Select or drag your file onto the upload area.
2. Process
Your file is processed instantly — nothing is stored.
3. Download
Download your result with one click. Done.
Why Criply
Private by default
Client-side tools never upload your files. Server-side tools delete them immediately after processing.
No account needed
Just upload and go. No email, no password, no account — ever.
Works on any device
Fully browser-based. Works on desktop, tablet, and mobile with nothing to install.
Frequently asked questions
URL encoding (also called percent encoding) replaces characters that are not safe in URLs with a % followed by their hexadecimal value. For example, a space becomes %20 and & becomes %26.
Related tools
Encode a URL or query string so special characters are safely transmitted, or decode a percent-encoded string back to readable text. Uses encodeURIComponent / decodeURIComponent — the correct standard for query parameters and form data.