Compress PNG
Optimize your PNG files while preserving transparency.
Drag images (JPG, PNG, HEIC) or Paste (Ctrl+V)
Formats: JPG, PNG, HEIC, WebP, AVIF, PDF
Compress a PNG Image…
Unlike JPG, PNG uses lossless compression: it never degrades visual quality, which makes it the reference format for logos, illustrations, screenshots, and any visual that requires transparency (alpha channel). The downside is weight: a PNG can easily reach 1 to 5 MB for a visual that could be ten times lighter. Smart PNG compression works differently from JPG: instead of throwing away visual information, it analyzes the color palette actually used by the image and reduces it to the essentials, removes unnecessary metadata, and optimizes pixel encoding. The result is an image strictly identical to the eye — including transparency, frame for frame — at often one-third the weight, sometimes less. The gain is especially spectacular on screenshots and vectorized graphics that use few distinct colors. And since everything happens in your browser, your visuals (often confidential: client mockups, internal captures, in-progress logos) never leave your machine.
What you gain by using PixFlow.
- 01Perfect transparency preservation (alpha channel) with no white background added
- 02Weight reduced by 30 to 80% depending on the original color palette
- 03Sharpness intact: no edge degradation, ideal for logos and text
- 04Strictly local processing: confidential mockups and visuals don't leave your device
- 05Batch compression: optimize an entire folder of assets in a single pass
- 06Automatic removal of useless metadata (source software, date, ICC profile)
Six scenarios where it changes everything.
Optimizing the logo and icons of a website to gain loading speed without losing visual quality
Reducing the weight of screenshots in product documentation or a technical blog post
Compressing Figma or Sketch mockups exported as PNG before sending them to a client by email
Preparing assets for a mobile app (iOS / Android) where every embedded PNG impacts the total app size
Lightening brand icons embedded in a heavy HTML newsletter
Optimizing illustrations in an online course, a PDF presentation, or a user manual delivered as PDF
How to compress a PNG image
- 01Import your PNG files (logos, graphics) into the tool.
- 02Select the desired compression level.
- 03The tool optimizes colors and reduces file size.
- 04Download your lightweight PNG images with transparency preserved.
Everything that deserves a clear answer.
Will I lose the transparency of my image?+
No, never. Our PNG compressor is designed to respect the Alpha channel (transparency). Your cutout logo will remain cutout.
Why are PNG files larger than JPGs?+
PNG is a 'lossless' format that stores every pixel precisely, unlike JPG which simplifies the image. That's why compression is crucial for PNGs.
Is it as effective as TinyPNG?+
Yes, we use similar color quantization algorithms to achieve an optimal size/quality ratio, all for free and without limits.
Can I compress screenshots?+
Yes, it is highly recommended. Screenshots are often very heavy PNGs that our tool can drastically reduce.