Quick Answer
If you need to hit a strict attachment size, start by resizing dimensions, then lower quality gradually. WebP often delivers the best savings.
Quick Template
Use the full Image Compressor
This variant is a fast preset. Open the full tool to fine-tune inputs, explore more options, and share the result.
Drag & drop images here
PNG, JPG/JPEG, WebP - processed locally in your browser
About Compress Images for Email (Smaller Attachments)
Compress Images Online (Client-Side)
Use this tool to shrink image file sizes for faster websites, smaller email attachments, and easier sharing.
Tips
- For photos, WebP or JPEG usually gives the best size savings.
- For logos/graphics, try PNG (or WebP if transparency is needed).
- Set a reasonable max width/height to avoid shipping oversized images.
Related Tools
Image Format Converter
Convert PNG, JPG, WebP, and HEIC images to another format in seconds. Fast, private, and fully client-side with no uploads, watermarks, or signups required.
Image Resizer
Resize images to exact dimensions or max size with high-quality scaling. Batch process PNG, JPG, and WebP files instantly in your browser with zero uploads.
PDF Merger
Merge multiple PDF files into one document instantly in your browser. Secure, private, and free - no upload required.