UsefulGrid guides

Understand the task.
Then use the tool.

Practical explanations for common file, image and data problems—with honest tradeoffs, clear checks and no unnecessary jargon.

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Guides built around real tasks

3 guides

Documents 7 min readReduce a PDF for emailA practical, privacy-conscious checklist for making a PDF smaller without making it unreadable.Read guide Images 6 min readHEIC vs JPGUnderstand the practical difference between efficient iPhone photos and widely compatible JPG files.Read guide Developer 8 min readConvert JSON to CSV privatelyTurn structured JSON into a spreadsheet-ready table while understanding nested fields, arrays and common data traps.Read guide

Useful before optimized

Each guide should answer the question even if you never open a tool.

Privacy-conscious

We explain when a task can stay on your device and what to review before sharing.

Honest tradeoffs

Smaller, faster and more compatible can come with costs. We make those decisions visible.