Compress and convert files online.
Right in your browser.

Reduce image and PDF file size by up to 95%. Convert between 50+ formats instantly. Your files never leave your device - everything processes locally.

JPEGPNGWebPAVIFHEICSVGGIFPDF

Your files never leave your device 100% browser-based processing Free unlimited use, no signup

Drop image files here or click to upload

Up to 20 files, 50MB each. Compression happens in your browser.

Quality:75%

CompressAll compress tools

Convert imagesAll conversions

PDF toolsAll PDF tools

Image toolsAll image tools

PRO

How it works

Three steps. No signup. No waiting. No uploads.

📁

Upload your file

Drag and drop any image or PDF file. Processing starts instantly in your browser - nothing is uploaded to our servers.

⚡

Instant compression

MozJPEG, pngquant and libwebp engines compress your file in milliseconds. See the result size and savings in real time.

💾

Download result

Get your compressed or converted file instantly. Same visual quality, dramatically smaller size. Your file was never stored anywhere.

Why SmallFile?

Built different from other online compressors.

🔒

100% Private - Browser Only

Your files never leave your device. All compression and conversion happens directly in your browser using WebAssembly. Zero server contact, zero uploads, zero risk.

⚡

Instant Results

No upload queues, no waiting for server processing. Files are compressed in milliseconds using MozJPEG, pngquant and libwebp - the same engines behind TinyPNG.

📱

HEIC to JPG Conversion

iPhone photos in HEIC format? Convert them to universal JPG or PNG instantly. No software needed - just drop your files and download.

🎯

Up to 95% Compression

Smart lossy compression removes data the human eye cannot perceive. Your 5MB photo becomes 300KB with zero visible quality loss.

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PDF Tools

Compress oversized PDFs, merge multiple files into one, split large documents, convert between PDF and JPG. All the PDF tools you need.

🔄

Any Format to Any Format

Convert between JPG, PNG, WebP, AVIF, SVG, GIF, BMP, TIFF and more. 50+ conversion pairs available, all processed in your browser.

Supported file formats

Compress and convert images, documents, and more

🖼 Images

JPEG / JPG
PNG
WebP
AVIF
GIF
SVG
BMP
TIFF
ICO

📄 Documents

PDF
PDF Merge
PDF Split
JPG to PDF
PDF to JPG

🛠 Tools

Image Resize
Image Crop
Image Rotate
Batch Compress
Format Convert

Why you should compress every image before uploading it online

Every image you upload to a website, social media platform, or online store carries its full original file size. A single photo from a modern smartphone is 3-8 MB. A product photo from a professional camera can be 15-30 MB. When your website loads 20 uncompressed images, visitors are downloading 60-200 MB of data - and most of them will leave before the page finishes loading.

Google has confirmed that page speed is a ranking factor. Websites with large, uncompressed images rank lower in search results, get fewer visitors, and convert fewer customers. Studies show that a 1-second delay in page load time reduces conversions by 7%. For e-commerce stores, this directly translates to lost revenue.

Image compression solves this problem without any visible quality loss. Modern compression algorithms like MozJPEG and pngquant analyze each image and remove data that the human eye cannot perceive. A 5 MB photo becomes 300 KB - a 94% reduction - while looking identical to the original on any screen. Your website loads in under 2 seconds instead of 8, your Google ranking improves, and your visitors stay longer.

SmallFile makes this process effortless. Drop your files, get compressed versions in milliseconds, download and use them anywhere. No software to install, no account to create, no limits on how many files you can compress. And because everything happens in your browser, your files never touch our servers - making SmallFile the most private image compressor available online.

Frequently asked questions

Is SmallFile really free?

Yes. All compression and conversion tools are completely free with no daily limits and no registration required. Pro features like AI image upscaling and background removal will be available with a subscription in the future, but all core tools - compress, convert, resize, crop, and PDF tools - are free forever.

Are my files safe? Do you store anything?

SmallFile processes all files 100% in your browser using WebAssembly technology. Your files are never uploaded to our servers, never stored, never transmitted, and never seen by anyone. We physically cannot access your files. The tool even works offline after the page loads.

How much can images be compressed?

JPEG images typically compress 40-80%. PNG files can be reduced by 50-95% thanks to pngquant color palette optimization. WebP files compress 30-60%. Results depend on the image content - photos with lots of detail compress less, while screenshots and graphics with flat colors compress dramatically more.

What is HEIC and why do I need to convert it?

HEIC (High Efficiency Image Container) is Apple's default photo format used on iPhones since iOS 11. While HEIC offers better compression than JPEG, it is not supported by most websites, apps, and Windows computers. Converting HEIC to JPG ensures your photos work everywhere - on any device, any platform, any website.

What compression engines does SmallFile use?

SmallFile uses the same open-source engines trusted by industry leaders. MozJPEG (developed by Mozilla) for JPEG compression, pngquant for PNG optimization, and libwebp (developed by Google) for WebP encoding. These are the same engines behind TinyPNG, Squoosh, and other professional tools - compiled to WebAssembly to run directly in your browser.

Does SmallFile work offline?

Yes. After loading the page once, all image compression and conversion tools work without an internet connection. SmallFile is a Progressive Web App - once loaded, the WebAssembly compression engines are cached in your browser and work entirely offline.

Can I compress multiple files at once?

Yes. You can drag and drop up to 20 files at once. SmallFile will compress or convert all of them in batch. Each file is processed independently in your browser, and you can download them individually or all at once.