Learn it. Make it. Done.
Clear explanations for the work behind the tools. No long detours.
Generate a favicon package and install the right files
Create six PNG icon sizes plus a multi-size ICO, understand fitted images, and edit the included manifest before installation.
Fill PDF Forms: a practical guide
Fill supported PDF text fields, checkboxes and choices.
Replace literal text and audit every match
Make a global literal replacement, understand substring and case behavior, and check the replacement count before using the result.
Add a chosen GST percentage or remove it from an included total
Separate a tax-exclusive base, tax amount, and inclusive total without assuming which rate legally applies.
HEIC to JPG Converter: a practical guide
Convert iPhone HEIC photos into shareable JPEGs.
Expand a short HEX color and read its RGB and HSL values
Convert #369 to #336699, inspect its channel values, and understand why notation conversion does not establish text contrast.
Compact an HTML snippet while checking parser normalization
Remove ordinary comments and repeated whitespace while preserving preformatted blocks and reviewing browser serialization.
HTML to PDF: a practical guide
Convert simple HTML text into a paginated PDF.
Compress a photo by comparing quality and file size
Choose an image format and quality setting, compare the export with your original, and avoid unnecessary image degradation.