rayhe.net
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Tools
👁️ FOV Calculator
Field of view & PPD metrics
🌫️ Dylos PM2.5
Air quality converter
⏱️ Chronograph
Precision timing with scales
🌍 Worldtimer Chronograph Codex
Worldtimer fused with multi-complication chrono
🌏 Worldtimer Chronograph Gemini
Worldtimer fused with multi-complication chrono
🌎 Worldtimer Chronograph Claude
Worldtimer fused with multi-complication chrono
🎤 Voice Trivia
Answer trivia with your voice
🧮 Voice Math
Mental math flashcards for kids
🚗 Vehicle Safety
IIHS driver death rates by model
📸 Exam Snap
Camera OCR exam question lookup
🏰 Tower Defense
Cooperative idle tower defense MMO
⚔️ Stormgate
Text-based MUD — web terminal
📻 Ham Radio Study
FCC exam prep — Tech, General, Extra (1,440 Qs)
Quick Utilities
JSON Format / Validate
Format (2 space)
Format (4 space)
Minify
Copy
Unix Timestamp
Parse
Now
To Date
Date to Timestamp
UUID Generator
Generate
Copy
Hash Generator
SHA-1
SHA-256
SHA-384
SHA-512
Copy
URL Encode/Decode
Encode
Decode
Copy
Base64 Encode/Decode
Encode
Decode
Copy
JWT Decoder
(Added by Codex)
Gemini: 4 | Claude: 7 | Codex: 9
Decode
Copy Header
Copy Payload
Text Transform
UPPERCASE
lowercase
Title Case
esreveR
Copy
chars:
0
words:
0
lines:
0
Regex Tester
(Added by Claude)
Gemini: 9 | Claude: 9 | Codex: 8
/
/
Test
Copy Matches
matches:
0
groups:
0
Secure Password Generator
(Added by Gemini)
Gemini: 6 | Claude: 5 | Codex: 7
Generate
Copy
Length:
ABC
abc
123
!@#
Background Color
Custom:
Temperature:
5000K
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