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Website assets

Website Asset Performance Kit

Prepare lighter WebP/JPG/PNG assets, social cards, Open Graph previews, and accessible UI colors before a page goes live.

Finish line: A lighter, clearer asset set with fewer obvious publishing, preview, and readability mistakes.

Start the reviewed route Ask Tool Finder

Best route through FastTool

These links are intentionally ordered. The goal is not to browse hundreds of utilities; it is to finish one valuable job with enough evidence to trust the output.

Create web-ready formats Use when an image must load faster on a site. Resize social card assets Use when previews need the right dimensions. Preview metadata and image Use before publishing or sharing. Check UI contrast Use before shipping buttons or badges.

Tools used in this kit

Image Compressor Reduce large page assets. Bulk Image Resizer Normalize repeated assets. PNG to WebP Create lighter PNG alternatives. JPG to WebP Create lighter photo alternatives. Open Graph Preview Check the share card. Color Contrast Checker Verify readable UI color pairs.

Safe sample and expected output

Safe sample

A landing page hero image, three product screenshots, one Open Graph image, and a CTA button color pair.

Expected deliverable

A smaller asset set, correct preview image, readable button colors, and a page that does not depend on oversized visuals.

Proof checks before you trust the result

  1. Resize images to their real display dimensions before conversion.
  2. Keep fallback formats where the destination requires them.
  3. Preview Open Graph title, description, and image together.
  4. Check text and button contrast in normal and hover states.

Realistic use cases

Landing page owner

Compresses hero and screenshot assets before launch.

Indie maker

Checks Open Graph preview before sharing a product link.

Designer-developer

Verifies CTA colors before shipping a page.

Common mistakes this kit prevents

  • Uploading 4000px images for 800px display slots.
  • Converting transparent PNGs without checking background needs.
  • Using a nice-looking CTA color that fails contrast.
  • Forgetting social preview dimensions.
  • Treating file size alone as the complete performance check.

When not to use this kit

Full performance audits, lab-grade Core Web Vitals measurement, enterprise design-system approval, or licensed image-rights review.

FastTool kits run as static browser-first pages. They are designed to guide practical work, show checks, and state limits clearly. No signup is required.