✓ 100% Client-Side
✓ No Login Required
✓ Open Source
✓ Privacy First
✓ Runs in Browser
Tools
Everything runs in your browser
Cron Builder
Build and validate cron expressions for Linux, AWS, Kubernetes and GitHub Actions.
Automation
CIDR Calculator
Subnet masks, usable hosts, and network ranges for IPv4 and IPv6.
Networking
JWT Decoder
Decode JWT tokens and inspect the header, payload, and expiry status instantly.
Security
JSON to YAML Converter
Convert between JSON and YAML in real time. Bidirectional with error highlighting.
Development
chmod Calculator
Calculate Linux file permissions between octal, symbolic, and visual formats.
Linux
gitignore Generator
Generate .gitignore files for any technology stack. Download with one click.
Development
Docker Run to Compose
Convert docker run commands into docker-compose.yml — and back.
Containers