HEIC を JPG に変換 — 無料・プライベート
iPhone の HEIC 写真をブラウザ内で汎用的な JPG 画像に変換。アップロード不要、透かしなし、登録不要。
Output format
Quality
92%Drop your HEIC files — convert to JPG
or click to browse · processed locally in your browser
Free · 5 of 5 watermark-free conversions left today
HEIC は Apple のデフォルト写真形式ですが、ほとんどのアプリ、Web サイト、デバイスは依然として JPG を期待しています。この無料コンバーターはブラウザ内で完全に動作し、写真がデバイスから出ることはありません。
How to convert HEIC to JPG in 3 steps
Fast, free, and 100% private — every conversion happens inside your browser.
- 1
Drop your HEIC files
Drag one or more .heic photos into the converter, or tap to browse from your device. Folders and batches work too.
- 2
Choose JPG as the output
JPG is selected automatically on this page. Adjust the quality slider if you want a different balance between size and fidelity.
- 3
Download your JPG files
Conversion runs locally — nothing is uploaded. Download files individually or grab a single ZIP for the whole batch.
What is the HEIC format?
HEIC (High Efficiency Image Container) is Apple's default photo format on iPhone and iPad since iOS 11. It uses HEVC compression to store images at about half the size of JPG with the same visual quality. The trade-off: outside of Apple devices, HEIC is still poorly supported — most Windows apps, Android phones, web platforms and email clients can't open it natively.
Why convert HEIC?
Converting HEIC to a widely-supported format like JPG solves three problems at once: your photos open everywhere, they're easy to share with non-Apple users, and you can upload them to any website, CMS or printing service without errors. With this tool, conversion is instant, free and never sends your photos to a server.
HEIC vs JPG — quick comparison
| HEIC | JPG | |
|---|---|---|
| File size | Smallest (HEVC compression) | Larger (≈2× HEIC) |
| Quality | Excellent, with HDR support | Very good, lossy |
| Compatibility | Apple devices only by default | Universal — every device, app and website |
| Best for | Storage on iPhone / iPad | Sharing, uploading, emailing |
Device & app compatibility
Where HEIC works out of the box, and where you really need JPG.
| Platform | HEIC | JPG |
|---|---|---|
| iPhone / iPad (iOS 11+) | Native | Native |
| macOS (10.13+) | Native | Native |
| Windows 10 / 11 | Extension required | Native |
| Android | Limited (recent versions only) | Native |
| Chrome, Firefox, Edge | Not supported | Supported |
| Gmail, Outlook, WhatsApp | Often rejected | Always accepted |
Need a different format?
Convert your HEIC photos to any other format — same tool, same privacy.
FAQ
この HEIC から JPG への変換ツールは本当に無料ですか？
はい。1 セッションあたり最大 5 枚まで無料で変換できます。Premium で無制限変換が解放されます。
写真はサーバーにアップロードされますか？
いいえ。変換は WebAssembly を使用してブラウザ内で完全に行われます。
品質は落ちますか？
JPG は非可逆形式ですが、品質レベルを選べます（オリジナルに近い品質には 92 を推奨）。
複数の HEIC を一度に変換できますか？
はい。HEIC 写真のフォルダをドロップして、ZIP として一括ダウンロードできます。
Windows や Android でも動きますか？
はい。Windows、macOS、Linux、Android、iOS の最新ブラウザで動作します。