Learn it. Make it. Done.
Clear explanations for the work behind the tools. No long detours.

Crop an image using exact pixel coordinates
Set a crop rectangle from its left and top edges, calculate valid bounds, and apply a consistent crop to compatible images.
Resize images to a precise width without stretching them
Use width and height settings correctly, calculate a proportional example, and review a resized image batch.
Rotate or mirror images and verify the direction
Apply clockwise quarter-turns and flips, understand changed dimensions, and check text and orientation in the exported PNG.
Create an image data URL and embed a small asset
Convert one image to a Base64 data URL, recognize its parts, and understand size and privacy implications before embedding it.
Image to Text: a practical guide
Copy text from photos and screenshots with local OCR.
Use decorative Unicode without hiding essential information
Create a short bold Unicode label, understand which characters change, and keep important social-profile information readable.
Minify JavaScript with compression while keeping a readable source
Use Terser on a small code block, inspect constant folding, and test the output in its real application.
Put JPEG images into a PDF with one image per page
Assemble JPEG files into a PDF, understand image-sized pages, and verify sequence and orientation before sharing.
Convert JPEG to PNG for a compatible editing copy
Create PNG copies of JPEG images while understanding dimensions, existing compression artifacts, metadata, and batch downloads.