Tools + answers for the people who keep things running
Your tech questions, answered in seconds.
Free, fast, browser-based tools for sysadmins, developers and security folks. No accounts, no uploads, no tracking your inputs. Plus field guides that give you the answer first and the theory after.
Flagship tools
All tools →Dev
AI Token Counter
Count tokens and estimate cost for GPT-5, Claude 4 and Gemini 3 before you call the API.
Runs in your browser
Dev
JSON to TypeScript
Turn any JSON payload into clean, typed TypeScript interfaces in one paste.
Runs in your browser
Sysadmin
tar Command Generator
Build, extract or list any tar archive by clicking, with every flag explained.
Runs in your browser
SEO
AI Crawler Blocker
Generate a robots.txt that blocks GPTBot, ClaudeBot and 20 other AI bots, plus Nginx and Apache rules.
Runs in your browser
By category
Developer tools
Decode, build and debug faster: JWT, cron, encodings and more.
Network tools
Subnets, DNS, IPs: the daily bread of network admins, done right.
Security tools
Passwords, TLS certificates and the things that keep you off incident calls.
Email & DNS tools
SPF, DKIM, MX and the plumbing behind deliverability.
SEO tools
Technical SEO checks that actually move rankings.
Sysadmin tools
Converters, calculators and cheats for people who run servers.
Latest articles
All articles →
Sysadmin
Intel Puts 5 Billion Euros Into Ireland for More Xeon
Intel is investing 5 billion euros in its Leixlip campus in Ireland to scale Xeon 6 and next gen Xeon on the Intel 3 node, after buying back full control of Fab 34.
Sysadmin
Meta Moves Its Iris AI Chip Into Production in September
An internal memo says Meta will put its fourth generation MTIA chip, Iris, into production in September 2026 to double compute and lean less on Nvidia and AMD.
Dev
OpenAI Ships GPT-5.6 and ChatGPT Work, a Desktop Agent
OpenAI released the GPT-5.6 family (Sol, Terra, Luna) plus ChatGPT Work, a desktop agent with Codex built in that turns a goal into finished docs, sheets, and code.