Powerful Bulk Image Compression Tool
Click to select or drop files
Everything you need to optimize your images for web and print
Advanced algorithms reduce file size by up to 90% while maintaining visual quality. Perfect for web optimization and faster loading times.
Convert between JPG, PNG, WebP, AVIF, and GIF formats. Modernize your images with next-generation formats for better performance.
Process hundreds of images simultaneously. Save time with bulk operations for resize, compress, and convert tasks.
Resize images by width, height, or percentage. Smart cropping and aspect ratio preservation ensure perfect results every time.
All processing happens locally in your browser. Your images never leave your device, ensuring complete privacy and security.
No file size limits, no upload restrictions, no watermarks. Use our tool as much as you need, completely free forever.
Built on proven open-source compression engines with a privacy-first architecture — the reliable choice for image optimization at scale.
Every compression and conversion runs locally via WebAssembly and Web Workers. Your photos never leave your device — privacy guaranteed by design, not by policy.
Powered by MozJPEG, OxiPNG, libwebp, and libavif — the same proven libraries used across the industry. Achieve up to 90% smaller files with virtually lossless visual quality.
Process hundreds of JPG, PNG, WebP, AVIF, and GIF files in parallel. No upload queue, no daily limits, no waiting — your CPU is the only ceiling.
Released under the MIT license on GitHub. Inspect the source, self-host the stack, or contribute improvements — trusted by developers, designers, and teams worldwide.
From a single screenshot to an entire product catalog, Small.im scales with your needs.
Shrink hero images and page assets to boost LCP scores, improve PageSpeed Insights ratings, and rank higher in Google search results.
Compress screenshots, photos, and illustrations before publishing. Faster-loading articles, lower bandwidth bills, and a smoother reading experience.
Batch convert product photos to WebP, resize to consistent dimensions, and strip metadata in a single drag-and-drop pass.
Prepare crisp images for landing pages, email campaigns, and social media — keep the visual polish while cutting file size dramatically.
Tutorials, comparisons, and tips on image compression and optimization
TinyPNG is good but has real limits - 5 MB cap, server-side uploads, and no batch processing on the free plan. Here are the best alternatives I actually tested.
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A new browser-based tool that converts image sequences into MP4 or WebM video without uploading a thing. Here is what ShotSeq does, who it is for, and how it pairs with Small.im for image-to-video workflows.
Read MoreSmall.im is an open-source batch image compression tool that supports multiple image formats. The source code is available at https://github.com/airyland/pic-smaller, distributed under the MIT license.
Small.im supports multiple formats including JPEG, WEBP, PNG, GIF, and AVIF.
Yes, it's completely safe. All image compression and conversion processes are executed locally in your browser. Your images are not uploaded to any server, ensuring your data privacy and security.
You can upload images by clicking the upload area to select files, or by dragging and dropping files and folders into the upload area.
Yes, you can batch add images or add entire folders at once.
Use the preview feature where you can drag the divider to compare the original image (left side) with the compressed image (right side).
Join thousands of developers, designers, and content teams who rely on Small.im for fast, private, bulk image compression and format conversion.
Compress PNG, JPEG, WebP, AVIF, and GIF files, convert between formats, and resize in bulk — all in your browser, with no uploads, no signup, and no daily limits.
