Guides
File handling, explained without the fog.
Practical notes on formats, compression, and doing sensitive document work in a browser. No jargon for its own sake, and no advice that only works if you upload your file.
All guides
How to compress images for the web without ruining them
A practical guide to smaller files, sensible settings, and knowing when “good enough” is actually good enough.
Read the guideHow to merge PDFs on any device without uploading them
A safer, calmer workflow for contracts, applications, and all the scanned paperwork in between.
Read the guideJPG, PNG, or WebP? A practical guide to image formats
Three formats, three jobs. Here is the short version you can actually use.
Read the guideWhat actually happens when a file tool runs in your browser?
“Runs locally” gets used loosely. Here is what it means, what it does not mean, and how to verify it.
Read the guideHow these are written
Plain advice, including the awkward parts.
These guides are maintained alongside the tools. If a method has a limitation—lossy compression, flattened PDF text, a browser memory ceiling—it is stated rather than hidden. Recommendations are based on how the formats actually behave, not on what makes a conversion sound impressive.
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