Shrink images. Keep the detail.
Drag in your images, pick a format, and watch every file compress in real time — no installs, no sign-up required.
PixelStar is a free, browser-based image optimization tool. You drop in your images, choose how you want them compressed, and get back smaller files — instantly, with no software to install and nothing to sign up for.
It supports batch processing with live per-file progress, so you see each image shrink in real time rather than staring at a spinner waiting for the whole batch to finish.
- Output format selection — convert to WebP, JPEG, PNG, TIFF, or GIF in one click
- Quality control — fine-tune the quality/size tradeoff with a slider (1–100)
- Lossless mode — compress without any quality loss (WebP and PNG)
- Progressive encoding — makes JPEGs load top-to-bottom progressively in the browser
- Metadata stripping — removes EXIF data (camera info, GPS location, timestamps)
- Resize on compress — set a max width and images are scaled down proportionally
- Drop in up to 20 images at once (up to 50MB each)
- Files are processed one by one with a live shrinking progress bar per file
- See original size → optimized size → savings percentage for each file as it finishes
- Download individual files the moment they're ready, or wait for the full ZIP archive
- Progress is pushed to your browser via WebSocket — no page polling, no refreshing
- The ZIP is built automatically when all files finish and the download link appears instantly
- Create an account to save your session history
- Sign in with Google or email + password
- Email verification support
- Accounts are completely optional — the optimizer works fully without one
1. Open the app
Go to pixelstar.ir
2. Drop your images
Drag and drop images onto the compression chamber, or click it to browse your files. Supported formats: JPEG, PNG, WebP, TIFF, GIF.
3. Pick your settings
In the settings panel on the right:
| Setting | What it does |
|---|---|
| Output format | What format your compressed files will be saved as |
| Quality | Lower = smaller file, higher = better image (ignored in lossless mode) |
| Max width | Resizes the image down to this width while keeping aspect ratio |
| Strip metadata | Removes hidden camera/GPS data from the file |
| Progressive | JPEG only — makes images load gradually in older browsers |
| Lossless | Compresses without losing any image quality |
4. Compress
Click Compress N files. Each file shows a bar that shrinks to its actual compressed size as it finishes. You'll see:
- Original size → optimized size
- Savings percentage
- Final dimensions
5. Download
- Click Download next to any individual file to save it immediately
- Once all files are done, a Download ZIP banner appears with a single archive containing everything
| Format | Best for | Notes |
|---|---|---|
| WebP | Web images (photos + graphics) | Best compression ratio, supported by all modern browsers. Recommended default. |
| JPEG | Photos | Lossy compression, very widely supported |
| PNG | Screenshots, logos, transparency | Lossless by nature, larger files than WebP |
| TIFF | Print / archival use | High quality, large files |
| GIF | Animated images | Limited to 256 colors |
Tip: If you're optimizing images for a website, WebP at quality 80 is almost always the right choice — it gives you the smallest files with the least visible quality loss.
- For web use: choose WebP, quality 75–85, strip metadata on
- For photos you want to keep: choose JPEG or PNG, quality 90+, lossless off
- For logos / icons: PNG or WebP with lossless on
- Large batch? Drop everything in at once — files upload and process sequentially so you don't overwhelm the server, and you can already download finished files while the rest are still processing
- Mobile: the app works on phones and tablets — use the share sheet to send images directly from your camera roll
- Uploaded files are stored temporarily on the server and automatically deleted after your session ends or within 3 days if you downloaded your files
- If you close the tab mid-session, files are cleaned up within a few minutes
- Metadata stripping (enabled by default) removes GPS location and camera info from your images before you download them
- No images are ever shared, sold, or used for any purpose other than processing your request
Made with ❤️ by MRez321