Convert JFIF to PNG — Lossless, With Transparency
Convert JFIF to PNG online for a lossless copy that stays sharp when re-saved. No software to install. Preview one free or batch-convert with Premium.
Drop your JFIF file or click to browse
Why convert JFIF to PNG?
- PNG is supported far more widely than JFIF, so the file is easier to open, share and upload.
- PNG is lossless, so the converted image loses no further detail when you edit and save it again.
- PNG is made for screenshots, logos, text graphics and cut-outs.
What to expect when converting JFIF to PNG
- Converting can’t bring back detail that JFIF compression already removed: the PNG is an exact copy of the image as it is, usually in a bigger file.
- Your original JFIF file isn’t changed: you download a new PNG copy.
JFIF vs PNG
| 機能 | JFIF | PNG |
|---|---|---|
| 氏名 | JPEG File Interchange Format | Portable Network Graphics |
| Origin | Defined in 1992 as the standard JPEG file layout | Published as a W3C standard in 1996 |
| 圧縮 | Lossy (it is a JPEG) | Lossless |
| Transparency | いいえ | Yes — smooth, partial transparency |
| アニメーション | いいえ | いいえ |
| 色 | 16.7 million colours (8 bits per channel) | Up to 16 bits per channel |
| Where it opens | Most image viewers, but many upload forms reject the .jfif extension | All browsers, phones, computers and image editors |
| こんな方に最適 | nothing a JPG can’t do — it holds the same image data | screenshots, logos, text graphics and cut-outs |
| Main drawback | upload forms and some apps reject the .jfif extension | large files for photographs |
In short: choose JFIF for nothing a JPG can’t do — it holds the same image data; choose PNG for screenshots, logos, text graphics and cut-outs.
Frequently asked questions
- How do I convert JFIF to PNG?
- Upload your JFIF file above. It is converted to PNG automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
- Does converting JFIF to PNG lose quality?
- No new loss is added: PNG stores the picture exactly as it is. Detail that JFIF compression removed earlier can’t be restored.
- JFIF or PNG: which should I use?
- Use JFIF for nothing a JPG can’t do — it holds the same image data. Use PNG for screenshots, logos, text graphics and cut-outs. Keep in mind the main drawback of PNG: large files for photographs.
- What is a JFIF file?
- A .jfif file is a JPEG with an unusual extension; Windows and some browsers save web images this way. The picture is identical to a .jpg, but many sites and apps refuse the .jfif name.
- Is the JFIF to PNG converter free?
- Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.
JFIFからPNGへ でできること
始める前に、主な機能を確認してください。
- JFIF 画像を PNG 形式に変換する
- 多数の JFIF ファイルを一度にバッチ変換します
- カメラや電子メールで撮った写真を共有可能な PNG に変換する
- 広くサポートされているアプリとブラウザの PNG を入手
設定リファレンス
5 設定
JFIFからPNGへ で使用可能なコントロール。
設定
- 出力形式ドロップダウン
- Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.オプション: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
- 品質スライダーレンジ: 20–100 · デフォルト: 90
- For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
- ロスレスモードオン/オフ
- For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
- 背景の塗りつぶしカラーピッカー
- For JPG, BMP and image-to-PDF output, which can’t store transparency: the colour that fills transparent areas (white by default).
モード
- 単一ファイル / バッチドロップダウン
- 共有設定を使用して 1 つのファイルまたはバッチを処理します。バッチ結果は 1 つの ZIP としてダウンロードされます。オプション: 単一ファイル一括処理
無料で利用可能 · 登録不要 · 透かしなしアップロードは転送中に暗号化されます保持ポリシーに基づいて削除されました
JFIFからPNGへ の関連ツール
JFIFからPNGへ の後の一般的な次のステップのためのツール。
変換結果を一つずつ確認
すべての写真はスラッシュをそのまま通過し、反対側が完成して出てきます。
