Practical image guides
Honest, opinionated guides on compressing, converting, and resizing images — with a strong bias toward tools that don't upload your files.
Why online image compressors upload your files (and how to stop them)
Almost every 'free online image compressor' uploads your file to a server you've never heard of. Here's what's actually happening — and how to compress images without sending them anywhere.
8 TinyPNG alternatives that respect your privacy
TinyPNG is convenient, but every file you compress is uploaded to its servers. Here are 8 alternatives that compress images without leaving your device.
WebP vs AVIF vs JPEG: choosing the right image format in 2026
AVIF is the smallest, WebP is the most universally supported, JPEG still has its place. Here's a practical 2026 breakdown of when to use each.
JPEG vs PNG: when to use each format
JPEG and PNG aren't interchangeable. One is for photos, the other is for graphics — and using the wrong one can multiply your file size by 10×.
How to compress images for the web without losing quality
Compressing images for the web isn't just about file size — it's about keeping the quality that matters and dropping the bits that don't. Here's the workflow.
How to convert HEIC to JPG without uploading anything
iPhones save photos as HEIC, and half the internet still can't open them. Here's the cleanest way to convert to JPG without uploading your photos to a stranger's server.
Image sizes for Instagram, X, LinkedIn, and Facebook (2026)
Every social platform has its own image sizes, and they change every year. Here's the 2026 reference for Instagram, X, LinkedIn, Facebook, and TikTok — plus the fastest way to resize.
How modern browsers compress images without a server
Browsers ship the same image codecs servers use. Here's how Canvas, OffscreenCanvas, and Web Workers turn them into a full client-side image processing pipeline.
How to convert PDF to JPG for free — no upload required
Government portals, job applications, and e-commerce sites often reject PDFs. Here's how to turn every page into a JPG or PNG without uploading your documents to a third-party server.
How to convert images to PDF without installing software
Need to turn photos, scans, or screenshots into a PDF? Learn how to combine and reorder images into a polished PDF document — entirely in your browser with zero uploads.
How to resize images for social media — the complete 2026 guide
Stop guessing image sizes. Here's every dimension you need for Instagram, LinkedIn, Facebook, X, and YouTube — plus a free browser-based resizer.
JPEG vs PNG vs WebP — which image format should you use?
JPEG, PNG, and WebP each have strengths. This guide explains the real-world trade-offs so you can pick the right format every time — and convert between them for free.
How to compress images for website performance
Images account for over 50% of page weight on most websites. Here's a practical guide to shrinking them for faster loads, better Core Web Vitals, and higher search rankings.
How to merge multiple images into one PDF for job applications
Applicant tracking systems want one PDF, but you have five separate photos of your certificates. Here's how to merge them into a polished document in seconds.
How to merge PDFs online for free — without uploading your files
Need to combine invoices, contracts, or reports into one PDF? Here's how to do it privately in your browser — no uploads, no installs.