Image Compressor

How to use

Run a clean first pass

1. Drop or click to upload a JPEG, PNG, or WebP (10 MB per file max) — the whole pipeline runs in your browser, the image never leaves your device, works offline.
2. Use the quality slider to trade file size for visual quality. JPEG and WebP respect quality; PNG is lossless, so the slider auto-disables.
3. Switch the output format: WebP usually beats JPEG by 25–35% at matching quality AND preserves alpha; PNG is lossless and the largest, also preserves alpha; JPEG is the most compatible but cannot encode transparency (transparent pixels are filled white before encoding).
4. Watch the live BEFORE / AFTER panels and the savings % readout — eyeball whether the current quality is acceptable before downloading.
5. Click Download to save straight to your device. Reset returns the slider to the default 75 for the next try.

Examples

Real jobs this page helps with

• Blog hero image slimmingA 2 MB JPEG straight out of a camera usually compresses to ~200 KB at quality 65 with no visible loss — single biggest hit you can take on LCP and Lighthouse scores.
• Messaging attachment fitA 3 MB DSLR photo at quality 75 lands around 800 KB — comfortably inside the attachment limits on Line, Telegram, Slack, and most chat apps with no cropping.
• Convert legacy PNG to WebPInterface screenshots and icons saved as PNG shave another 25–35% by switching the output to WebP. Cloudflare Pages and nginx serve WebP natively, so the swap is zero-config.
• Portfolio & résumé imagesCompress high-res shots to 300–500 KB before dropping them into a PDF résumé or online portfolio — smaller file, faster load, no visible quality loss.