Blog
Short, practical writing on file formats, privacy-first conversion, and getting work done without uploading to a stranger's server.
WebP vs JPG vs PNG: Pick the Right Image Format
WebP is smaller, JPG goes everywhere, PNG is pixel-perfect. A decision tree, real file-size numbers, and the cases where each one wins or loses.
XLSX to CSV Without Excel or Google Sheets
You don't need a $70 Office license or a Google account to flatten an .xlsx into CSV for Postgres, MySQL, or pandas. The no-install workflow, plus why multi-sheet workbooks are the real trap.
How to Convert SRT to VTT for HTML5 Video, Locally
The <track> element on HTML5 video only accepts WebVTT, not SRT. Here's the exact format difference, a real <track> snippet, and the 30-second local conversion.
How to Compress JPG Photos for Email Without Quality Loss
Your email keeps rejecting attachments over 25MB. Here's the honest playbook for shrinking JPGs to fit — quality slider, max-dimension cap, and the three sliders that actually matter.
How to Convert Images to PDF on an iPhone Without an App
Turn a folder of iPhone photos into a single PDF — no App Store install, no upload, no signup. Works for HEIC and JPG. The 60-second walkthrough that fits how iOS actually works.
iPhone HEIC vs JPG: When Each One Actually Makes Sense
HEIC saves space; JPG goes everywhere. Here's how to pick between them photo by photo — what to shoot in, what to send, and the local fix for the times you guess wrong.
How to Compress a PNG Without Losing Quality
PNG is a lossless format, so how do you make it smaller? Here's how PNG compression actually works, and how to shrink a PNG in your browser without visible quality loss.
How to Convert an Image to SVG Vector (Free, Browser-Based)
Need a PNG or JPG as a scalable SVG vector? Here's how to trace an image to SVG in your browser — free, no upload, no Illustrator needed. With realistic expectations.
How to Extract Text from a PDF Without Uploading
Need to copy text out of a PDF? Most "PDF to text" tools upload your file to a server. Here's how to extract text from a PDF entirely in your browser — privacy intact.
How to Merge PDFs in Your Browser Without Uploading
Combine PDFs entirely in your browser — no signup, no upload, no file-size cap from iLovePDF or Adobe. The merge runs locally; your documents never leave your device.
How to Convert HEIC to PDF on iPhone or Mac
Convert iPhone HEIC photos straight to PDF in one step — no HEIC→JPG→PDF double-conversion, no uploads. Works on iPhone, iPad, Mac, Windows, and Linux.
How to Compress an iPhone Photo Larger Than 5MB
iPhone photos blow past TinyPNG's 5MB free cap. Here's how to compress a big iPhone JPG or HEIC in your browser — no upload, no size limit, no signup.
How to Convert HEIC to JPG Without Uploading Your Photos
Most free HEIC converters upload your photo to a server you don't control. Here's how to convert HEIC to JPG entirely in your browser — verifiable in DevTools, no upload.
How to Convert HEIC to JPG on Windows 11 (Free, No Install)
Windows 11 won't open .heic files without paying Microsoft for the HEVC extension. Here's how to convert HEIC to JPG for free in your browser — no installs, no uploads, no Microsoft Store.
Why HEIC Photos Won't Open on Windows (and the 30-Second Fix)
HEIC files from your iPhone won't open on Windows? Here's why it happens and the fastest way to fix it — no installs, no uploads, 30 seconds.