Compress Image for Website Background (Under 250 KB WebP)
Background images can afford lower quality (75) because text overlays hide artefacts.
KB
WebP is typically 25–35% smaller at the same quality — useful when the target is aggressive.
Runs entirely in your browser — nothing is uploaded.
Website background images sit behind text overlays that mask JPEG/WebP compression artefacts. That lets you drop quality to 75 without visible degradation — meaningful bytes saved on every page load.
This preset produces a 2400 px WebP at quality 75 — retina-safe on 4K displays, background-optimised.
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Frequently asked questions
- How much can I shrink images for website background?
- Typical reductions are 60–85% with no visible quality loss using the defaults on this page. Website background images sit behind text overlays that mask JPEG/WebP compression artefacts. That lets you drop quality to 75 without visible degradation — meaningful bytes saved on every page load.
- What format is best for website background?
- For website background the preset above outputs WEBP at quality 75 — the sweet spot for this workflow's LCP and CWV budget.
- Will compression break transparency or animation?
- Transparency is preserved when the output format supports it (PNG, WebP, AVIF). Animation is preserved for animated WebP. JPEG output flattens transparency to white.
- Can I compress dozens of images at once?
- Yes — use the bulk compressor. Drop a folder or multi-select files; the queue processes them in order with progress per file, and you can download all results as a ZIP.
- Do my images get uploaded anywhere?
- No. The tool runs entirely in your browser — important for client work, internal assets, and anything not yet published.
Optimise the rest of your website background assets.
Use the bulk compressor to process a folder in one go. Everything runs locally.
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