Image Tools— Guides & Articles

• How to Change Image DPI on Mac Without Re-encoding

  Published 2026-10-11

  Change an image's DPI on Mac without resizing pixels or re-encoding. Update JFIF or pHYs metadata locally in your browser and download a fresh copy.

  

• How to Crop an Image for Beginners: A Plain Walkthrough

  Published 2026-10-11

  A simple guide to cropping images in your browser. Learn what a crop actually does to a photo, how to pick an aspect ratio like 1:1 or 16:9, and save a…

  

• Compress Image for Beginners: A Plain English Guide

  Published 2026-10-11

  New to image compression? Learn what it is, why it matters, and how to shrink JPG, PNG and WebP files in your browser in a few clicks.

  

• Invert Image Colors in Bulk Across Multiple Images

  Published 2026-10-11

  Invert image colors across multiple images right in your browser. Repeat the single-file workflow per image and download a still PNG—local, never uploaded.

  

• Image Color Extractor Free: No Sign Up or Upload

  Published 2026-10-11

  Pull a color palette from any image for free, no sign-up or upload. The browser decodes the file locally and returns HEX, RGB, and coverage data.

  

• EXIF Viewer for Beginners: A Plain-English Walkthrough

  Published 2026-10-11

  New to EXIF? Learn what camera, capture, lens, and GPS metadata mean, then read them in your browser with no upload and no jargon.

  

• Resize a GIF for Beginners: A Plain-English Walkthrough

  Published 2026-10-10

  Resize a GIF for beginners using a browser tool that keeps everything local. Pick a file, enter a width, and download a proportionally resized animation.

  

• Optimize GIF to 256KB: A Realistic Browser Workflow

  Published 2026-10-10

  Optimize a GIF toward 256KB in your browser by lowering the color palette. Compare real before-and-after sizes and export without uploading.

  

• GIF Maker for Email Attachment: A No-Upload Workflow

  Published 2026-10-10

  Create an email-ready animated GIF from JPG, PNG, or WebP images in your browser with this local GIF maker — no upload, no signup, no watermark.

  

• Icon Too Large? Resize It to Exact Favicon Sizes

  Published 2026-10-10

  An icon too large for a browser tab should be center-cropped to a square and exported at exact favicon sizes (16, 32, 48) as separate PNG files.