How to Compress Images for the Web (Without Losing Quality)

• Updated 2025-09-01 • 34 words • 1m read

Practical guide to reduce JPG, PNG and WebP size while preserving perceived sharpness and improving Core Web Vitals.

1. Why compress

Image weight is a major driver of LCP and initial transfer. Cutting bytes improves performance, SEO and conversion.

2. Recommended formats

  • WebP: excellent balance of size and quality. Alpha supported.
  • JPEG: complex photos; use quality 75–85.
  • PNG: only when exact lossless transparency is required.

3. Suggested workflow

  1. Resize to the real max display resolution.
  2. Convert (if useful) to WebP.
  3. Tune quality iteratively while previewing artifacts.

4. Practical quality ranges

TypeQualityNotes
Photos80Balanced
Soft illustrations75Check gradients
Icons / UIWebP @ 70Usually fine

5. Avoid visible loss

  • Side‑by‑side compare (Optimize tool).
  • Look for block artifacts & color banding.
  • Raise 5% if degradation appears.

6. Orqui flow

  1. Resize to needed width.
  2. Convert to WebP if suitable.
  3. Optimize adjusting quality.

7. Final checklist

  • Weight < 250KB (hero) / 100KB (inline).
  • Dimensions ≤ layout need.
  • Modern format (WebP) available.
  • No perceptible artifacts.

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FAQ

  • Why should I compress images?
    It reduces transfer size, improves Core Web Vitals (LCP) and speeds up perceived loading, helping SEO and conversions.
  • What quality setting should I use?
    Start around 80 for photos, 75 for soft illustrations and iterate while visually comparing for artifacts.

Count of local transformations you do here (convert, optimize, resize, crop, remove background). All done privately in your browser.