URL Encoder & Decoder
Percent-encode strings for safe use in URLs, or decode %XX-encoded URLs back to readable text. Instant conversion.
Output will appear here.What powers the URL Encoder & Decoder
Bidirectional encode/decode
Handles full URLs or fragments
Unicode-safe encoding
Error detection for invalid input
One-click copy
Why the URL Encoder & Decoder is different
Browser-native
The URL Encoder & Decoder runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Query string parameter encoding
- API endpoint construction
- Deep-link debugging
- OAuth callback URL handling
- Email subject line encoding
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.