Image Quality Reducer: Set an Exact Quality Percentage

Sometimes you do not want an automatic optimizer, you want direct control: "save this at 60% quality" or "give me the 70% version for the email". The Image Quality Reducer does exactly that. It keeps each image's format and dimensions and re-encodes it at the quality percentage you set, starting at 70%, a level where most photos still look good while the file drops considerably.

For JPG and WebP the percentage is the encoder quality. For PNG, which is lossless by nature, the percentage selects a colour palette: 85 to 99% gives 256 colours, 70 to 84% gives 128, and lower settings fewer colours, while 100% writes a lossless PNG. Every change updates the preview and the size badge immediately, so you see the trade-off before you download.

How to use the Image Quality Reducer

1. Drop your images onto the upload area, click it to choose files, or paste an image with Ctrl+V. This page accepts JPG, PNG, WebP, GIF and BMP files, many at once and up to 80 MB each.
2. Move the quality slider to the percentage you want. As a guide: 80 to 90% is near-original, 70% is a good web compromise, 50 to 60% is visibly softer but very small, and below 40% artefacts become obvious.
3. Compare the result with the before/after slider, paying attention to faces, text and gradients, and adjust until the look and size suit your purpose.
4. Check the result with the before/after slider: drag the divider across the preview and read the new dimensions, file size, quality and percentage saved underneath. Any change to the settings re-processes every image automatically.
5. Download a single image, or use Download all (ZIP) for the whole batch. Under More options you can also set a DPI value and a file-name pattern with {name}, {w} and {h}.

Typical reasons to lower image quality

• Email attachments and messages. A photo at 60 to 70% is a fraction of the size and still perfectly readable on screen.
• Previews and drafts. Low-quality versions are handy for client previews or placeholders while the full files stay private.
• Testing compression. Designers and developers can see exactly how an image behaves at each setting. For a side-by-side check use the image comparison tool.
• When you really need a size, not a quality. If a form demands "under 100 KB", let compress image to 100KB or Target size find the quality for you.

Lowering quality does not change the pixel dimensions. If you also want a smaller image in width and height, open Resize; reducing dimensions often saves more than reducing quality alone.

Private, free and fast

The whole job runs in your browser: images are decoded, resized and re-encoded on your own device, so nothing is uploaded to a server. There is no sign-up, no watermark and no daily limit, and location and camera data (EXIF) are removed from every result.