Universal Image Compressor
Compress JPG, PNG, WebP, AVIF, GIF, SVG, TIFF, BMP, HEIC images online free. Before/after slider preview. Target KB or MB. No upload to server.
- Free to use
- Browser-based processing
- No account required
- Files never uploaded
About Universal Image Compressor
The Universal Image Compressor shrinks JPG, PNG, WebP, AVIF, GIF, SVG, TIFF, BMP and HEIC files by re-encoding them at an optimized quality level, with a live before/after slider so you can see exactly what you are trading for the smaller size. You can compress by quality or aim for a target in KB or MB. Everything runs in your browser using the Canvas and WebCodecs APIs, so the photo you drop in is never sent to a server.
How to Use Universal Image Compressor
- 1
Add your image
Drag a JPG, PNG, WebP, AVIF, GIF or HEIC file onto the panel, or click to browse. You can also paste an image from your clipboard.
- 2
Set your target
Choose a quality level or type an exact target size in KB or MB. Use the before/after slider to compare the original against the compressed result.
- 3
Download
When the size and quality look right, download the optimized image. The original on your device is untouched.
Frequently Asked Questions
How much can I compress an image without losing quality?
For photographs, a quality of 70–80% typically cuts file size by 50–70% with no visible difference. The before/after slider lets you find the point where quality drops off for your specific image.
Which image formats can I compress?
JPG, PNG, WebP, AVIF, GIF, SVG, TIFF, BMP and HEIC are all supported. For the smallest files, converting to WebP or AVIF during compression usually beats JPG at the same quality.
Are my photos uploaded anywhere?
No. Compression happens entirely in your browser. Your images are read from disk into memory, processed locally, and never transmitted to any server.
Does compressing remove EXIF data?
Re-encoding strips most metadata, including GPS location and camera info, as a side effect. If you specifically need to remove metadata, the Remove EXIF Data tool does it without altering pixels.