Best for
- Reduce JPG, PNG, and WebP file size before uploading to websites.
- Compare the original and compressed result visually.
- Choose PNG, JPG, WebP, or SVG output depending on your workflow.
TUXIA Tools
Image Compressor Workspace - TUXIA
TUXIA Image Compressor supports local JPG, PNG, and WebP compression. Compare original and compressed images, adjust quality, and download PNG, JPG, WebP, or SVG output.
Before and afterQuality controlFormat export
Compression
Compress image and compare results
Upload an image, compare original and compressed output, adjust quality, then download.
Drag an image here, or click to choose a file
PNG, JPG, WebP, up to 2 MB
Tool Guide
Image Compressor Guide and FAQ
Compress images online with a before-and-after preview. TUXIA lets you adjust quality, compare the original and compressed file, and export common image formats for websites, email, documents, social posts, and lightweight publishing.
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Image compression is one of the most impactful optimizations you can make for web performance, email deliverability, and storage management. Large, uncompressed images slow down page loads, consume mobile data, get rejected by email servers, and fill up cloud storage. TUXIA's Image Compressor provides a side-by-side comparison workspace where you can see exactly how compression affects your image in real time. Upload a JPG, PNG, or WebP file, adjust the quality slider from 10% to 100%, and immediately see the compressed preview alongside the original. The tool automatically chooses the best compression format (WebP where supported, JPEG for photos, PNG for graphics with transparency) and shows the exact file size reduction in bytes and percentage. You can also override the output format to PNG, JPG, WebP, or SVG before downloading. All processing uses the browser's Canvas API — your original image file stays on your device and is never uploaded to a server.
Common Use Cases
Website Performance Optimization
Unoptimized images are the leading cause of slow page loads. Compress product photos, hero images, and blog illustrations before uploading to your CMS. Even a 30-50% size reduction per image can cut total page weight significantly, improving Core Web Vitals scores and SEO rankings.
Email Attachment Size Reduction
Most email providers cap attachments at 25 MB per message. Photos straight from a modern phone camera can easily exceed 5-10 MB each. Compress images before attaching to ensure they reach the recipient without bouncing or being automatically downsized by the email service.
Social Media and Messaging
Social platforms and messaging apps apply their own compression when you upload, often degrading quality unpredictably. Pre-compressing with TUXIA gives you control over the quality-to-size trade-off, so you can share images that look good without consuming unnecessary bandwidth.
How It Compares
Server-based compressors like TinyPNG or Compressor.io offer similar quality through cloud processing, but they require uploading your images to a third-party server. TUXIA's compressor runs entirely in your browser, which is faster for large files (no upload wait) and more private (no server ever sees your image). Desktop tools like ImageOptim or Photoshop offer batch processing and more advanced options, but require installation and are not available on all devices.
Technical Notes
- JPEG compression is lossy — each re-compression permanently discards some image data. For archival purposes, keep an uncompressed master copy and create compressed versions for distribution.
- WebP compression typically produces files 25-35% smaller than JPEG at equivalent visual quality. Most modern browsers support WebP, but some older email clients and apps do not.
- PNG compression in browsers is lossless — TUXIA re-encodes the PNG, which can sometimes produce a smaller file without quality loss, especially if the original PNG was not optimized.
- Images with transparency (alpha channel) are converted carefully: JPEG output adds a white background, while WebP and PNG preserve transparency.
Best Practices
- Start with quality at 80% and preview the result. Gradually reduce quality until you notice visible degradation, then step back 5-10%.
- Use WebP format for web images — it offers the best size-to-quality ratio for photos and mixed-content graphics.
- For text-heavy images (screenshots, infographics), keep quality above 60% to ensure text remains sharp and readable.
- If the compressed file is larger than the original (shown as a neutral note), the image was already well-optimized. Try a different output format or accept the original as the best version.
How to use it
- Upload a JPG, PNG, or WebP image.
- Move the quality slider and compare the preview.
- Choose an output format and download the compressed image.
Frequently asked questions
Why can a compressed image become larger?
Some images are already optimized, and converting between formats can add overhead. Try WebP or reduce quality further when file size matters.
Which format is best for smaller files?
WebP often produces small files for photos and mixed graphics. JPG is widely compatible for photos, while PNG is better for transparency and sharp graphics.
Will compression reduce quality?
Lossy formats can reduce quality. Use the preview to balance file size and visual clarity.