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Compress & Optimize

Optimize Images for Web to Pass Core Web Vitals

One-click resize + compress for web pages.

Drop images to auto-optimize for the web

Supports JPG, PNG, WebP, HEIC, TIFF and more · Max 40 MB MB

How to optimize images for the web to pass Core Web Vitals

Optimize Images for Web to Pass Core Web Vitals. One-click resize + compress for web pages. One-click pipeline: resize, compress, convert to WebP/AVIF and add <picture> markup. Take a raw export from Photoshop/Figma and ship a production-ready image set. A ZIP with JPG/PNG fallback + WebP/AVIF variants plus a copy-paste HTML snippet.

All processing happens locally in your browser. Your images are never uploaded to any server.

Key Features

  • Auto-generates responsive srcset widths
  • Includes pre-generated <picture> snippet
  • Caps dimensions to a configurable max width

Common Use Cases

  • One-click optimization of blog post images for immediate web publishing
  • Preparing client deliverables with correctly sized and compressed images
  • Auditing and fixing oversized images that hurt Core Web Vitals scores

Last updated: August 5, 2026

User Guide

How to use this tool

The Optimize Images for Web tool bundles resizing, re-encoding, and modern-format conversion into a single one-click preset system. Pick your delivery context — blog post, hero banner, social share, or thumbnail — and receive an image that is dimensioned and compressed exactly for that role.

How to use it

Drop your source image onto the upload zone. Choose one of the four curated presets: Blog post (1200 px WebP), Hero image (1920 px WebP), Social share (1080 px JPG), or Thumbnail (480 px WebP). The tool resizes, re-encodes and previews the output automatically.

Compare the source vs. optimized panels to verify visual quality. Switch presets to see the tradeoffs instantly, and download the winning candidate.

  • Four battle-tested presets covering the most common web contexts
  • Automatic downscaling plus modern-format re-encoding
  • Live comparison of source and optimized outputs
  • One-click switching to explore quality/size tradeoffs

Why presets beat manual tuning

Choosing the right combination of dimensions, format and quality by hand is a research project. Our presets were derived from real Core Web Vitals measurements across e-commerce, SaaS and content sites, and are refreshed as browser support evolves.

For custom workflows you can still fall back to the individual Resize, Compress and Format-Convert tools, which expose full manual control.

Frequently Asked Questions

How do I resize and compress my images so they pass Google's Core Web Vitals?

Drop in the images, choose a max width (e.g. 1920px), pick WebP/AVIF output, and enable compression. The tool resizes, re-encodes and optimizes in one pass, delivering images that reduce LCP and avoid the "properly size images" audit.

What's in the ZIP?

For each source image: resized JPG/PNG fallback, WebP and AVIF variants at responsive widths, plus a code-snippet.txt.

Do I still need a CDN image service?

For most blogs and marketing pages, the generated files are ready to serve as static assets.

What does "Optimize for Web" do exactly?

It resizes images to a max width suitable for web display, compresses them at an optimal quality level, and converts to the best format (WebP or JPG). It is a one-click replacement for the manual resize → compress → convert workflow.

What are the recommended web image dimensions?

For content images, a max width of 1200–1600px covers most responsive layouts. For full-width hero images, 1920–2400px is appropriate. The tool uses 1920px as the default maximum width.

Will my images look different after optimization?

At the default settings, the difference is nearly invisible to the human eye. You can always adjust quality and dimensions to find the right balance for your specific use case.

Is this tool free to use?

Yes. This tool is completely free with no sign-up, no watermarks, and no daily limits. All processing runs locally in your browser.

Which preset should I use for Instagram?

Social share (1080 px JPG). Instagram re-compresses uploads, so a moderate-quality JPG at exactly 1080 px preserves the most detail after their pipeline.

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