Compress Image
Reduce JPG, PNG and WebP file size with adjustable quality. Batch supported.
Resize Image
Resize photos by exact pixels or percentage. Lock aspect ratio with one click.
Convert Image Format
Convert between JPG, PNG and WebP. Batch convert with one download.
Why ImgTools?
- 100% private — your images never leave your device. All processing happens in your browser using the Canvas API.
- No signups or watermarks — use every tool instantly, as many times as you want.
- Batch processing — compress, resize or convert multiple images at once.
- Fast & free — no server queue, no waiting. Works offline once loaded.
Frequently Asked Questions
Is ImgTools really free?
Yes. All tools are free with no limits, no accounts and no watermarks.
Do my images get uploaded to a server?
No. Everything runs locally in your browser with JavaScript and the HTML5 Canvas API. You can even disconnect from the internet after the page loads.
What's the difference between JPG, PNG and WebP?
JPG is best for photos with small file sizes. PNG supports transparency but larger files. WebP gives the best compression with transparency support and is recommended for websites.
Will compressing reduce image quality?
Compressing with lossy formats (JPG, WebP) reduces quality slightly. Use the quality slider to find the balance between size and clarity. PNG compression is lossless.