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.
Latest news
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Sysadmin ·
EU Opens Bidding for Seven AI Gigafactories
The European Commission opened its AI Gigafactories call on July 30, 2026: up to seven sites, 75,000 to 100,000 chips each, bids close November 12.
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Dev ·
Gemini Robotics 2: Three Models, One Runs on the Robot
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Network ·
OPI Ships Its First Release to Standardise DPU and IPU APIs
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Dev ·
Nouveau Gains NVDEC Channels, Unlocking Vulkan Video in NVK
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Sysadmin ·
Nscale Buys Anyscale, the Company Behind Ray
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Dev ·
OpenAI Cuts GPT-5.6 Luna 80% Three Weeks After Launch
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Network ·
Amazon Leo Files for 5,105 Direct to Phone Satellites
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.