8 guides published so far — more are added regularly.
EXIF metadata hides the GPS location, date, and camera model inside every photo your phone takes. What it actually contains, why it matters, and how to strip it in your browser — free, no upload.
HEIC and JPG explained: why iPhones default to HEIC, what you gain and lose, and when to convert to JPG for compatibility — free, in-browser converter, no upload.
Lossy vs lossless, what the quality slider actually does, and realistic file-size savings for JPG, PNG and WebP — explained plainly, with a free in-browser compressor.
The real technical breakdown of every tool on PhotoTimestampTool.com: canvas re-encoding, EXIF byte-parsing, WASM HEIC decoding, and the in-browser ZIP writer — and what that architecture can't do.
Why a visible date stamp matters for insurance, inspection, and legal documentation photos — and how to add one without uploading the photo anywhere.
iPhones and Android phones stopped burning the date into photos years ago. Here's how to add a visible date/time stamp back — free, in your browser, no app to install.
Real ways to shrink a photo's file size while keeping it visually identical: resizing vs. quality settings, format choice, and where the trade-off actually lives.
Convert a whole folder of iPhone HEIC photos to JPG at once, on Windows or Mac, without installing software or uploading your photos — free, runs in your browser.