Free Online Image File Size Reducer
FreeReduce image file size for web, email, and social media. JPEG, PNG, WebP supported. No upload, instant preview, free.
What's next
Settings guide
File size targets by use case:
| Use Case | Target Size | Recommended Settings |
|---|---|---|
| Email attachment | Under 1MB | JPEG 75–80% quality |
| Website (above the fold) | Under 200KB | WebP 75–80%, or JPEG 75% |
| Website (below fold/gallery) | Under 500KB | JPEG/WebP 70–75% |
| Instagram post | Under 1MB | 1080px wide, JPEG 80% |
| WhatsApp / Telegram | Under 5MB | Platform recompresses anyway |
| Google Drive sharing | Under 2MB | JPEG 80% for photos |
| LinkedIn / Twitter post | Under 1MB | 1200px wide, JPEG 80% |
Most effective steps in order: (1) Resize to actual display dimensions, (2) compress at appropriate quality, (3) convert to WebP if web-only.
Format comparison
Compression vs resizing: Compression reduces how efficiently the data is stored; resizing reduces how many pixels there are. Both reduce file size, but they work differently. For the smallest result, do both: resize first to your target display dimensions, then compress. On a 4000×3000px photo resized to 1080×810px, the pixel count drops 93% before any compression is applied.
JPEG vs WebP for web delivery: At the same visual quality, WebP is 25–35% smaller than JPEG. If your images are for web use and you control the export pipeline, WebP is the more efficient choice.
How it works
Upload
Drop your image into the tool. JPEG, PNG, and WebP accepted.
Compress
Adjust the quality slider to hit your target file size.
Preview
See the compressed size and compare quality side-by-side.
Download
Save the reduced image to your device.
About this format
You have a practical problem: an email won't send, a website loads too slowly, or a social platform rejected your upload because the file is too large. The format doesn't matter — the size does. This page addresses those specific scenarios with the exact targets to hit for each platform and use case.
Different platforms have different constraints. Instagram's limit is 8MB, but the platform recompresses everything you upload — uploading a 7MB image doesn't give you 7MB quality. Google's Core Web Vitals guidelines recommend above-the-fold images under 200KB. Email providers cap attachments at 10–25MB total. Understanding what target to aim for prevents both over-compressing (losing quality unnecessarily) and under-compressing (still failing the platform check).
Upload your image, compress, and download. Supports JPEG, PNG, and WebP. Runs entirely in your browser.