Guides
Practical guides for people who publish.
Step-by-step notes on YouTube thumbnails and metadata, Google Calendar clean-ups and AI chat history. Each one stands on its own; where one of our tools helps, we say so once.
- How to preview a YouTube thumbnail before you publish
Check how your YouTube thumbnail looks on home, search, mobile and up-next before you publish: four practical methods, a pre-publish checklist and common mistakes. - YouTube thumbnail size and safe areas (2026)
YouTube thumbnail size in 2026: recommended resolution, minimum width, file size limits by device, aspect ratio, and where to keep text clear of the duration badge. - How to bulk edit Google Calendar events
Google Calendar has no multi-select edit. Here are the practical ways to change many events at once: recurring series, export and re-import, Apps Script, and extensions. - How to mass delete events in Google Calendar
Ways to delete many Google Calendar events at once: delete a recurring series, delete a whole secondary calendar, remove imported events, scripts and extensions, plus how to back up first. - How to bulk edit YouTube titles and descriptions
Change titles and descriptions on many YouTube videos at once: what YouTube Studio bulk edit can do, where it falls short, and how to find and replace text safely. - How to search and export your ChatGPT chat history
Find old ChatGPT conversations with sidebar search, and export your full ChatGPT history as a ZIP: step-by-step for web, iOS and Android, plus how to search the export.