Useful, not gimmicky.
No sign-up, no email wall, nothing to fill in before you get value. A handful of frameworks the best technology leaders already use, laid out so you can read one in a minute and share it in two.
Frameworks worth borrowing.
First 90 Days as a CTO
Pick the situation you’re walking into, get a concrete 30/60/90 plan built for the person in the chair.
After Michael Watkins, The First 90 DaysDeliveryDORA metrics, honestly
The four keys, the 2025 changes, and where teams actually land, as a reference card, not a sales pitch.
Google Cloud DORA researchReliabilityThe nines & your error budget
What 99.9% actually buys you in downtime, the most screenshotted reliability table, plus the error-budget idea.
Google SRESecurityNIST CSF 2.0 explorer
The six functions of the cyber framework everyone maps to, with GOVERN at the centre, in plain language.
NIST (public domain)SecurityOWASP Top 10 (2025)
The ten web risks that matter, ranked, with what changed since 2021. A deck you can flick through and share.
OWASP Foundation (CC BY-SA)StrategyHow to read a Wardley Map
The strategy tool serious CTOs swear by, explained on one annotated map. Where to build, buy, or outsource.
Simon Wardley (CC BY-SA)StrategyYour operating model, in one 2×2
Four ways a company can run its technology, and what each one demands of standardisation and integration.
MIT Sloan CISR (Weill & Ross)CareersThe engineering leadership ladder
What actually changes at each rung from Senior Engineer to CTO. The jump nobody prepares you for.
After Charan, Drotter & Noel, The Leadership PipelineThe quiet workhorses.
Small developer tools that run entirely in your browser, nothing you paste ever leaves the page.
JSON formatter
Paste, pretty-print, minify, validate. Local only.
JWT decoder
Header + payload decoded client-side, with exp/iat in plain English.
Hash generator
SHA-1/256/384/512 live as you type, via Web Crypto.
Base64 encode / decode
UTF-8-safe, both directions, in the browser.
URL encode / decode
Percent-encoding both ways. No round trip to a server.
UUID generator
Fresh v4 UUIDs on tap, copy one or all.
Unix timestamp converter
Epoch to UTC / ISO / local, and back. Seconds or millis.