How to how to compress image without losing quality
- Identify the file-size or display requirement.
- Resize large dimensions to a practical width.
- Compress at a balanced quality setting.
- Preview details, text, and edges before downloading.
Recommended settings
70% to 85% for most photos
1200 to 2000 px for general use; smaller for strict forms
JPG for photos, PNG for transparency, WebP for modern websites
Resize first when the image is much larger than its final display or upload need.
Practical explanation
The user needs a clear explanation before choosing compression settings.
Start with dimensions and only lower quality after the image is sized correctly.
Use compression for smaller byte size, resizing for fewer pixels, and conversion when the current format is not right for the destination. Very small targets can require visible tradeoffs, so compare the preview before downloading.
FAQ
What affects image file size most?
Pixel dimensions, format, quality level, transparency, and visual detail all affect file size.
Can I reduce size without visible quality loss?
Often, yes, especially by resizing oversized images. Exact lossless reduction is limited.
Which format should I use?
Use JPG for photos, PNG for transparency or screenshots, and WebP for modern web images.
Why does lowering quality not always work?
Some files, especially PNGs or very large images, need resizing or conversion too.
Is the tool browser-based?
The compressor uses browser APIs where possible and does not require signup.