Large image files slow down your website and waste storage space. ImageStream's image compressor processes your files entirely in the browser — no server uploads, no privacy concerns.
How to compress images
- 1Upload your image files by dragging or clicking (up to 20 files)
- 2Adjust the quality slider to control compression level (default setting recommended)
- 3Click Compress and download your optimized images
Platform-Specific Image Compression Guide
Instagram — Posts, Reels, and Stories
Instagram automatically compresses images upon upload. To avoid double-compression that degrades quality, compress your JPGs to under 1,500KB before uploading. For feed posts, use 1080×1080px (square) or 1080×1350px (portrait) and aim for 300KB–1MB. For Reels covers, 1080×1920px (max 8MB) is ideal, while Stories should also be 1080×1920px (under 4MB for best results).
Facebook — Ads, Posts, and Cover Photos
While Facebook allows up to 30MB, file size significantly impacts page load speeds and ad performance. For News Feed ads, aim for 1200×628px under 500KB. For Page cover photos, keep them under 100KB at 851×315px. Faster-loading images on mobile correlate directly with higher engagement and conversion rates.
TikTok — Profile Pictures and Covers
TikTok profile images display at 200×200px; upload at least 400×400px for clarity. JPG is preferred over PNG for speed. For TikTok ads (like TopView), use 1080×1920px (9:16) and keep them under 500KB to ensure smooth review and fast loading.
YouTube — Thumbnails and Channel Banners
The recommended thumbnail size is 1280×720px (16:9) with a 2MB limit. To maintain quality, compress JPGs between 500KB and 1MB. For channel banners, use 2560×1440px, keeping essential elements within the safe 1546×423px center zone, and keep total file size under 6MB.
Shopify — Product Image Optimization
Image optimization is critical for SEO and Google's Core Web Vitals (LCP). Use square images up to 2048×2048px, aiming for under 200KB per image. JPG is often lighter than PNG for white-background product shots. Shopify handles WebP conversion automatically, so uploading high-quality JPGs is best practice.
WordPress / Blogs — Web Performance & SEO
Images account for most page weight. For body content, use a max width of 1200px (100–300KB). Featured images should be 1200×630px (under 150KB). Optimizing before upload improves PageSpeed Insights scores and helps search engine rankings.
