Image Compressor

About the Toolzify Image Compressor

Large images slow pages, eat bandwidth, and frustrate users. Toolzify's Image Compressor trims PNG and JPG files without forcing you to install desktop software. We prioritize a balance between quality and size so your assets stay crisp on retina displays while loading fast on slow networks.

What problem it solves

Bloated assets inflate Time to First Byte and Largest Contentful Paint, both of which hurt conversions and search rankings. This compressor gives you a predictable way to resize and optimize images for web, email, or app usage without handing files to unknown servers.

How it works

The tool reads your image, optionally resizes it to target dimensions, and adjusts quality based on the slider. Client-side compression handles small files for instant output, while larger files can fall back to a safe server-side routine that never stores the originals. After you download the optimized version, temporary files are purged.

Step-by-step instructions

1. Drop or select a PNG or JPG up to 5 MB.
2. Set the quality slider. Start around 80% for a good balance.
3. Optionally enter max width/height to resize while keeping aspect ratio.
4. Click Compress & Download to get the optimized file.
5. Review the reported savings and repeat if you need an even smaller size.

Use cases

• Optimizing blog feature images to keep pages under a performance budget.
• Preparing lightweight graphics for email newsletters that must load inside clients.
• Shrinking product photos for marketplaces without sacrificing detail.
• Compressing screenshots for tickets or documentation to reduce attachment size.
• Resizing hero banners to target device widths before uploading to a CMS.

Best practices and limits

Use the resize option to hit your actual display size; shrinking dimensions often saves more than lowering quality. Keep originals backed up before compressing for production. Extremely large or CMYK images should be converted to sRGB and resized in a local editor first. If you work with transparent PNGs, test at a slightly higher quality to avoid visible banding.

FAQs

Do you store my images? No. Files are processed for your session only and removed after download.

Which formats are supported? PNG and JPG. Use the Image Converter to switch formats before compressing other file types.

How much size can I save? Many web images drop 40–70% without noticeable quality loss, especially when resized to target dimensions.

Will EXIF data remain? Compression may strip some metadata to reduce size. Remove sensitive EXIF locally if needed.

Is there a mobile limit? Mobile browsers handle moderate files well. For very large photos, compress on desktop first.