About This Tool
Encode or decode text using ROT13 cipher. A simple letter substitution cipher. All processing happens locally in your browser — no data is sent to any server. Free, fast, and works on all devices.
How to Use
Paste your input or configure the options above, then click the action button to get instant results. Copy or download the output with one click.
Why RiseTop?
- 100% Free — No signup, no premium tiers
- Privacy First — All processing in your browser
- Fast & Reliable — Instant results, no server round-trips
- Works Everywhere — Desktop, tablet, and mobile