ToolFlect Free image tools Convert now

Image Converter & Compressor

🟢 Runs Locally — verified: your files are processed in this browser. No uploads.

Convert and compress PNG, JPG, WebP, AVIF and HEIC images in your browser — free, private and unlimited.

Start converting ↓

Drop, convert, download

Processing happens on your device using Web Workers — your images never leave the browser.

Quality 82%
Resize (px, optional)
×

Your converted images will appear here.

How to use this tool

  1. 1

    Drop your images

    Drag and drop PNG, JPG, WebP, AVIF or HEIC files into the upload zone, or click to browse.

  2. 2

    Choose output settings

    Pick a target format, set the quality, and optionally resize — the aspect ratio is preserved automatically.

  3. 3

    Convert & download

    Click Compress All, review the size savings, then download files individually or as one ZIP.

Format comparison

FormatFile sizeQualityBest for
WebPSmallLossy/losslessWebsites
JPGSmallLossyPhotos & email
PNGLargeLosslessGraphics & logos
AVIFSmallestLossy/losslessModern web

Frequently asked questions

Is this image converter really free?
Yes. It runs 100% in your browser using Web Workers and the Canvas API, so there are no server costs and no limits.
Are my images uploaded anywhere?
No. Files are processed entirely on your device and never sent to a server — which is why it is private and instant.
Which formats can I convert?
You can convert between WebP, JPG, PNG and AVIF, and decode HEIC/HEIF photos from iPhones. HEIC is input-only because browsers cannot encode it.
Can I compress multiple images at once?
Yes. Add as many files as you like, compress them in parallel, and download everything in a single ZIP.

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