About ImgTools
ImgTools provides 5 free image processing tools that work entirely in your browser. Compress, resize, crop, convert, and bulk resize images without uploading them to any server.
Available Tools
- Compress ImageReduce image file size while maintaining quality. Supports JPEG, PNG, and WebP.
- Resize ImageChange image dimensions with aspect ratio lock. Resize to exact width and height.
- Crop ImageCrop images with preset ratios (1:1, 4:3, 16:9) or freeform selection.
- Convert ImageConvert between PNG, JPEG, and WebP formats instantly in your browser.
- Bulk ResizeResize multiple images at once to the same dimensions or max size.
Privacy First
Unlike most online image tools, ImgTools never uploads your files to any server. All image processing is done using the native HTML5 Canvas API directly in your web browser. Your images stay on your device at all times.
How it works
- You select an image file from your device
- Your browser reads the file locally (no upload occurs)
- The Canvas API processes the image in your browser
- You download the processed result directly
At no point does your image data leave your device or get sent to any server.
Our Commitment
- 1.Always free -- no signup, no paywall, no watermarks, no limits.
- 2.100% private -- your images never leave your browser. Zero server uploads.
- 3.Works everywhere -- phone, tablet, desktop. No app to install.
- 4.No tracking -- we use minimal analytics. No cookies for tracking your usage.
- 5.Instant processing -- no upload delays, no queues, no waiting.
Supported File Types
ImgTools supports all image formats that your browser can read. The table below lists every format with its capabilities:
| Format | Input | Output | Notes |
|---|---|---|---|
| JPEG / JPG | Yes | Yes | Best for photographs. Lossy compression with quality slider (1-100%). |
| PNG | Yes | Yes | Lossless with full transparency support. Ideal for screenshots, icons, and graphics. |
| WebP | Yes | Yes | Modern web format with excellent compression and transparency. Supported in all modern browsers. |
| GIF | Yes | No | Static first frame only. Animated GIFs are read but not preserved during processing. |
| BMP | Yes | No | Uncompressed bitmap format. Can be read and converted to other formats. |
| TIFF | Varies | No | Browser-dependent input support. Chrome and Edge support most TIFF files. |
| SVG | Yes | No | Vector format. Can be rasterised and converted to PNG/JPEG/WebP. |
Processing Limits
Because all processing happens in your browser, performance depends on your device's hardware. Here are the practical limits:
Maximum File Size
50 MB
Per individual file. Most images are well under this limit.
Maximum Dimensions
16,000 px
Per side. Images above 8,000px per side may cause slower performance.
Batch Size
20 files
For compress, convert, and bulk resize tools. Single file for crop and resize.
Browser Memory
Device RAM
Large images consume browser memory. Close other tabs if processing very large files.
Performance Tips
- Use a modern browser (Chrome, Firefox, Edge, or Safari) for best results
- Close unnecessary tabs when processing very large images to free up memory
- For batch operations with many large files, process them in smaller groups
- Desktop browsers generally handle larger files better than mobile browsers