Compress Image to 100KB
Web-optimized images for faster pages, better SEO, and improved Core Web Vitals. Ideal for blogs, product pages, and hero sections.
Compression Settings
Uses advanced client-side algorithms. No file size limits.
Drop images here or click to browse
Supports JPEG, PNG, WebP • Max 20 files • Up to 25MB each
100% Private & Secure
All image compression happens directly in your browser. Your files never leave your device and are not uploaded to any server.
Why 100KB Is a Great Web Target
Performance & UX
- Faster loads: Smaller images improve LCP and overall page speed.
- Mobile-friendly: Saves data and reduces CPU decode time on low-end devices.
- Consistent UX: Budget images to avoid layout shifts and long loading spinners.
SEO & Core Web Vitals
- Better LCP: Optimized hero/product images speed up first meaningful paint.
- Improved crawl efficiency: Smaller assets help pages render faster for bots and users.
- Lower bounce rates: Faster pages keep users engaged and boost conversions.
Best Practices for 100KB Web Images
Pick the Right Format
Use AVIF/WebP for photos when possible; JPEG for maximum compatibility; PNG for graphics, logos, and transparency.
Resize to Display Width
Do not upload 4000px images for a 1200px slot. Resize first, then compress to meet ~100KB.
Use srcset & lazy-loading
Serve multiple sizes with srcset/sizes and lazy-load offscreen images.
Strip Metadata
Remove EXIF/metadata to save extra kilobytes without quality loss.
Suggested Size Budgets
Hero / Feature
100–200KB at 1200–1600px wide (WebP/AVIF)
Blog / Product
60–120KB at 1000–1200px wide
Thumbnails
10–50KB at 320–600px wide
Icons / Logos
Prefer SVG; if raster, aim for <50KB
Note: budgets vary by content and desired quality. Measure on target devices.
How to Compress Image to 100KB
Upload Images
Drag & drop or browse from your device.
Set Target to 100KB
Enter 100 in the target size field to hit the budget.
Choose Format & Preview
Try WebP/AVIF for smallest size; use the quality slider as needed.
Download Optimized Files
Batch-download and use on your website or CMS.
References
Frequently Asked Questions
Why target 100KB for web images?
100KB is a practical benchmark for fast-loading blog images, product shots, and hero visuals on modern websites. It balances quality and performance, especially when combined with resizing and modern formats like WebP or AVIF. Actual needs vary by dimensions and content complexity.
What dimensions typically fit into 100KB?
As a rule of thumb: 1000–1400px wide photos in WebP/AVIF often compress near 80–120KB with good quality. Highly detailed scenes may require a slightly smaller width or lower quality. Always resize to the display width before compressing.
Which format should I choose: JPEG, WebP, or AVIF?
For the web, prefer AVIF or WebP for best compression. JPEG is universally compatible but larger at the same visual quality. Our tool lets you convert between formats so you can pick the smallest file that still looks great.
Will compressing to 100KB reduce quality?
There is always some trade-off. With smart resizing and modern formats, quality loss is often minimal for typical website usage. Use the preview to pick a quality level that keeps text and edges crisp.
Does this tool work entirely in the browser?
Yes. All compression runs locally in your browser using the canvas API. No images are uploaded to any server, ensuring privacy and security.
Can I compress multiple images to 100KB at once?
Yes. You can process up to 20 images in one go. Ideal for blog posts and product galleries where you want consistent size budgets.