Guides
Practical guides for everyday tools
Focused instructions, honest limits, and direct links to the tools used in each workflow. Automation does not replace reviewing an important file, fact, security choice, or generated result.
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Utilities · 4 minute read
Compare a slow connection and a VPN route
Record your public exit address and bounded speed estimates before and after a route change without mistaking either for a diagnosis.
Utilities · 3 minute read
Check angle modes, precedence, and graph estimates
Use exact input checks for arithmetic and trigonometry, then distinguish a sampled graph from a numeric answer.
PDF · 6 minute read
How to combine and organize PDF pages
Merge files, put pages in order, rotate mistakes, and export a new PDF without overwriting the originals.
Images · 5 minute read
How to shrink images for the web
Separate pixel dimensions from compression quality, select an output format, and check the result before publishing.
Developer · 5 minute read
How to validate and format JSON safely
Find syntax errors, make nested data readable, minify only when needed, and verify that values survive the round trip.
Security · 6 minute read
How to generate and handle strong passwords
Use browser-generated randomness, favor length and uniqueness, store credentials safely, and understand what a one-time secret link protects.
Conversion · 6 minute read
How to choose a document conversion workflow
Match the tool to the source, understand which structure can be retained, and verify a converted document before relying on it.
Text · 4 minute read
How to prepare text for publishing
Measure length, clean inconsistent case and spacing, estimate reading time, and preserve a human review step.
AI · 7 minute read
How to use AI writing tools responsibly
Reduce the data you submit, give precise instructions, verify every result, and distinguish rewriting from fact checking.
How these guides are written
Instructions describe features currently available in the linked tool. Each guide distinguishes local, server, and AI processing when that boundary affects the workflow. The checklists retain a human review step because generated documents, facts, and automated output can be incomplete or wrong.