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ImgBench

Convert Images to PNG

PNG is lossless and keeps transparency, which makes it the right working format for icons, UI assets and images you plan to keep editing.

Drop images here, or browse your files

JPEG, PNG, WebP, AVIF and BMP. Up to 200 images per batch, 50 MB per file.

Files are read locally by your browser and are never uploaded to a server.

Queue

No images yet

    Images you add appear here with a preview, their file size, progress and any errors.

    Settings

    → PNG

    Keeps the capture date, camera model and other details.

    PNG is a working format: lossless, transparency-capable and accepted by nearly every editor. The price is size, which makes it a poor choice for publishing directly.

    This page takes the common formats and always writes PNG.

    When PNG is the right target

    If the image is only going on a web page, WebP or JPG is lighter.

    Quality does not improve, it just stops degrading

    A conversion can only keep existing pixels. A JPG source already dropped detail when it was encoded, and PNG stores those softened edges exactly as they are.

    So JPG to PNG buys room for further editing, not better pixels. To recover detail, start from the original file.

    Expect the file to grow

    The same picture as PNG is usually several times larger than its JPG version: JPG trades quality for size, PNG keeps every pixel.

    Compress again or switch to WebP before publishing.

    How to use it

    1. Drop in images. JPG, WebP, AVIF and BMP all work.
    2. Conversion starts on import. The output format is already pinned to PNG.
    3. Check the card. It shows source → PNG with the before and after sizes.
    4. Download. Save files individually, or take the batch as a ZIP.

    Frequently asked questions

    Which images can be converted to PNG?+

    JPG, WebP, AVIF and BMP all work. A PNG input is skipped, because re-encoding it would change nothing.

    Does PNG improve quality?+

    No. A conversion keeps the pixels that exist and cannot recover detail already discarded. A JPG turned PNG gets bigger, not better.

    Is transparency preserved?+

    Yes. WebP and AVIF alpha channels are written into the PNG untouched. A JPG source has no transparency to keep.

    Why is the file so much bigger?+

    PNG compresses without discarding detail, so it usually weighs several times more than JPG or WebP. That is the cost of lossless storage.

    Can I convert a batch?+

    Yes. Drop in a set of images and each is processed in turn; download them individually or as a ZIP.

    Can this repair a damaged PNG?+

    No. A PNG input is skipped because re-encoding the same pixels changes nothing, and a broken file usually fails to decode before that step. Open it in an editor and re-export instead.

    Which is smaller, PNG or WebP?+

    WebP, almost always, and it keeps transparency too. PNG remains the safer choice when a tool refuses WebP or when you plan to edit the file again, because its lossless storage survives repeated saves.

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    • Convert Images to JPG — Convert to JPG: turn PNG, WebP, AVIF or BMP into the most widely accepted image format. Batch conversion in your browser, no upload, ZIP export.
    • Convert Image to WebP — Convert image to WebP without uploading: turn JPG, PNG, AVIF or BMP into lighter web images that keep their transparency, one file or a whole batch.
    • Convert PNG to JPG — PNG to JPG: turn PNG screenshots and assets into lighter, more widely accepted JPG files. Transparent areas become white, and nothing is uploaded.
    • Convert SVG to PNG — Convert SVG to PNG in your browser. Pick the output width or a 1x–3x scale, keep the vector's transparency, then download one file or the whole batch as a ZIP.

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