Free image compressor

1. Add your images. Drag and drop them onto the box above, or click to browse. You can compress a single photo or dozens at once.
2. Pick an output format. Leave it on Keep to stay in the same format, or switch to WebP for the smallest possible file size.
3. Set the quality. Drag the quality slider — around 70–80% is the sweet spot where files get much smaller but still look sharp.
4. Download. Grab each compressed image with its download button, or use Download all to save the whole batch at once.

Because the compression happens on your device, there are no upload limits, no waiting on a server, and no watermarks — just faster, lighter images.

The format you export to has a bigger effect on file size than almost anything else. Here is how the three main web formats compare:

The short version: use WebP for the web whenever you can, JPG for photos where WebP isn't supported, and PNG only when you genuinely need transparency. Need to change format entirely? Use our WebP to PNG / JPG converter.

• Faster pages. Images are usually the heaviest thing on a web page. Smaller images mean faster loads and better Core Web Vitals, which Google uses as a ranking signal.
• Better SEO and conversions. Every second of load time costs you visitors. Lighter images keep people on the page and lift conversion rates.
• Email and upload limits. Slip under attachment size limits and upload caps on job boards, forms, and marketplaces without fighting a “file too large” error.
• Cheaper storage and bandwidth. Compressed assets take up less space and cost less to serve at scale.

• Start at 75–80% quality and only go lower if the file is still too big — most people can't tell the difference above 70%.
• Resize before you compress. A 4000px photo displayed at 800px is wasting most of its data; use the max-width option to cap it.
• Convert photos to WebP for the biggest savings at the same visual quality.
• Keep an original copy. Compression is lossy, so archive the full-size file and compress a working copy.

Yes. Unlike most online compressors that upload your files to a server, this tool does everything locally in your browser using the HTML canvas API. Your images never leave your device, it works offline once the page has loaded, and nothing is stored or logged. That makes it safe for sensitive screenshots, client work, and personal photos.

• Bloggers & site owners compress featured images and screenshots so pages load fast and rank better.
• E-commerce sellers shrink product photos to speed up Shopify, WooCommerce, Etsy, and Amazon listings without blurry images.
• Email marketers keep newsletters under inbox size limits so images actually load and campaigns don't clip in Gmail.
• Developers optimize assets before shipping to cut bandwidth and improve Core Web Vitals.
• Job seekers & students get a portfolio, ID scan, or assignment under a strict upload size limit.
• Social media managers compress and resize images for each platform without a paid design tool.

• Photographs: export to JPG or WebP at 70–80% quality. Photos have lots of detail, so lossy compression saves the most here with no visible change.
• Screenshots: WebP usually beats PNG by a wide margin while staying crisp. Try WebP first; fall back to PNG if you need pixel-perfect text.
• Logos & graphics with transparency: keep them as PNG or WebP — never JPG, which fills transparent areas with white.
• Hero & banner images: resize to the largest size you actually display (often 1600–1920px wide) before compressing, then export to WebP.
• Icons & simple shapes: a vector (SVG) will usually beat any raster format — only compress a raster copy when SVG isn't an option.

When you need to change dimensions rather than just weight, pair this with the aspect ratio calculator to keep every image perfectly proportioned.