Tools

Small IT utilities that run entirely in your browser. No sign-up, no tracking, nothing sent to a server.

• Networking Subnet Calculator Network, broadcast, host range, and masks for any IPv4 address and CIDR.
• Sysadmin Cron Explainer Turn a cron expression into plain English and see the next run times.
• Data JSON / YAML Formatter Validate, pretty-print, and convert between JSON and YAML.
• Security Password Generator Strong random passwords and diceware-style passphrases, made in your browser.
• Data Base64 / URL Encoder Encode or decode text as Base64 or URL encoding.
• Networking Unit Converter GB vs GiB, Mbps vs MB/s, and how long a download will take.