画像変換
変換 画像 between JPG, PNG, WebP, and GIF. 無料, in-browser, no upload — your files never leave your device.
Drop 画像 here or ファイルを選択
What is an 画像 converter?
An 画像 converter changes a picture from one file format to another — for example, a JPG photo to PNG, a PNG logo to WebP, or a WebP screenshot to GIF. Each format serves a different purpose: JPG keeps photos small, PNG preserves transparency and lossless detail, WebP offers modern web compression, and GIF is still the standard for simple animations. 変換ing between them lets a single 画像 work everywhere it needs to go — on a website, in a document, or in a chat.
This free 画像 converter handles JPG, PNG, WebP, and GIF in every direction and processes many files at once. Everything happens locally in your browser with the HTML canvas API, so your 画像 are never uploaded to a server. There is no signup, no watermark, and no limit — drop a batch of photos, pick a format, and download each result a few seconds later.
使い方 use the 画像 converter
- Drop one or more JPG, PNG, WebP, or GIF 画像 onto the box above, or click browse to pick files.
- Choose the output format from the dropdown — JPG, PNG, WebP, or GIF.
- Click 変換 and download each file in its new format from the results list.
Frequently asked questions
Which formats are supported?
JPG, PNG, WebP, and GIF — convert any of them to any other, and process as many files as you like in one batch.
How do I convert a JPG to PNG?
Add the JPG file, select PNG from the format dropdown, and click 変換. PNG is the right choice when you need transparency or lossless quality.
How do I convert a PNG to WebP?
Drop the PNG, choose WebP as the output format, and convert. WebP files are usually much smaller than PNG while keeping the same quality, which makes them ideal for the web.
Is it free and private?
Yes — everything runs entirely in your browser and your 画像 are never uploaded. 無料, no limits, no watermark, no signup.