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Convert image format (PNG, JPG, WebP, AVIF)

Convert PNG, JPG, WebP, AVIF, GIF or BMP images to PNG, JPG, WebP or AVIF. Runs entirely in your browser, so your images never leave your device.

80

Applies to JPG, WebP and AVIF.

This tool does not upload your files

The conversion runs entirely in your browser. Your files stay on your device from start to finish, there is no server copy, and nothing is stored once you leave the page. That is true for every tool on FileFlip.

01About this tool

About this tool

Changing an image format is usually about one of two things: making a file smaller, or making it open somewhere it currently will not. This tool reads PNG, JPG, WebP, AVIF, GIF and BMP, and writes PNG, JPG, WebP or AVIF. Your browser does the decoding and encoding itself, so the picture never leaves your computer.

02Step by step

How to convert image

  1. 01

    Add your images

    Drop one or many files onto the page, or tap to browse. Batches are fine: every file is converted with the same settings.

  2. 02

    Pick the output format

    WebP is the safe default for the web. Choose PNG when you need transparency or perfectly sharp text, and JPG when something old has to open the file.

  3. 03

    Set the quality

    Quality applies to JPG, WebP and AVIF. Around 80 is usually indistinguishable from the original. PNG ignores it, because PNG is lossless.

  4. 04

    Convert and download

    Results appear in a list with their new sizes. Download them one by one, or grab everything as a single zip.

03Good to know

What to watch for

Which format should you pick?

WebP is roughly a quarter to a third smaller than JPG at the same visual quality and every current browser supports it. AVIF is smaller still, often around half the size of JPG, but it encodes slowly and needs a browser from 2023 or later. PNG is lossless, which makes it right for screenshots, logos and anything with transparency, and wrong for photographs, where it produces very large files.

Converting to JPG removes transparency

JPG has no alpha channel. Any transparent area is filled with white before the file is written, so if you need the transparency to survive, convert to PNG, WebP or AVIF instead.

Quality is not recoverable

Converting a JPG to PNG does not restore detail the JPG already discarded. It only stops further loss. Start from the highest quality original you have.

04Questions

Frequently asked

Are my images uploaded anywhere?
No. The conversion runs inside your browser using code that was downloaded to your device. Your file is never sent to us or to anyone else, so there is no copy to store or leak.
Can I convert HEIC photos from an iPhone?
Only if your browser can decode HEIC, which Safari on Apple devices can and most other browsers cannot. If it is not accepted, set your iPhone to save photos as JPG under Settings, Camera, Formats, Most Compatible.
Why is AVIF so much slower?
No browser can write AVIF from a canvas, so the encoding runs through a WebAssembly codec on your own processor. It produces the smallest files here, but a large photo can take several seconds.
Does converting an animated GIF keep the animation?
No. Only the first frame is converted, because the output formats used here are written as single still images.

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