ToolsOpsToolsOps
Fast digital tools, no install required.
Calculators, converters and utilities for developers and sysadmins. Everything runs in your browser. No unnecessary tracking.
Trust by default
- Runs in your browser
The data you enter never leaves your device. No intermediary servers.
- No account required
No sign-up, no login, no newsletter. Open the page and use it.
- No unnecessary tracking
No opaque analytics or tracking cookies by default.
Why ToolsOps?
Fast tools: static pages, no load times or installs.
Privacy by default: logic runs in the user's browser, not on a server.
Built for developers, sysadmins and technical teams.
Each utility is an independent module, accessible directly from its URL.
Featured tools
See all →- Permissionschmod calculator
Convert between octal (755), symbolic (rwxr-xr-x) and ls -l style permissions. Supports setuid, setgid and sticky bit.
- JSON/YAMLOnline JSON validator and formatter
Validate, pretty-print or minify JSON in your browser. Errors show line and column whenever the browser exposes them. Nothing leaves your tab.
- DevOpsCron expression generator
Build, parse and explain 5-field Unix cron expressions. Computes the next runs in your local time zone.
- NetworkingCIDR and IPv4 Subnet Calculator
IPv4 CIDR and subnet calculator online: subnet mask, wildcard, network, broadcast, range and usable hosts, computed in your browser.
- JSON/YAMLYAML to JSON and JSON to YAML Converter
Convert YAML to JSON and JSON to YAML in your browser. Nothing is sent to a server, no tracking, with clear error reporting.