HEIC Won't Open? Convert to TIFF Instantly
Fast, instant HEIC to TIFF conversion. No signup required. Just drop your .heic file and get .tiff in seconds.
Batch Settings
Generation loss — quality may degrade
HEIC uses lossy compression and TIFF typically uses lossy mode. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
Animation frames will be lost
HEIC supports animation, but TIFF does not. Only the first frame (or a representative frame) will be preserved. If you need animation, consider converting to WebP or GIF instead.
Default format on iPhone 7+ (iOS 11+)
Your device saves files in HEIC by default (iPhone 7+ (iOS 11+), iPad Pro 2017+, macOS High Sierra+). Most people convert because the files won't open on other devices — TIFF is universally supported and will work everywhere.
お手持ちのHEIC画像を、プロフェッショナルな印刷や精密な画像編集に最適なTIFF形式へ変換しませんか？スマートフォンで手軽に撮影したHEICファイルは、その高い圧縮率ゆえに日常使いには便利ですが、いざ高品質な出力や、デザインの現場での細やかな調整が必要となる場面では、その特性が足かせとなることも少なくありません。特に、日本のビジネスシーンやクリエイティブな分野では、画像の忠実性や互換性が重視される傾向にあります。当社の変換ツールは、お客様の大切な画像を、細部の情報まで損なうことなくTIFFへと移行させ、より幅広い用途での活用を可能にします。漫画の原稿、ビジネス文書の挿絵、あるいは大切な思い出の写真を、印刷物として残す際にも、TIFF形式ならば安心です。画質劣化を最小限に抑えつつ、ファイルサイズと品質のバランスを最適化する技術で、皆様のデジタルライフを強力にサポートいたします。
- 漫画・イラストの商業印刷
- ビジネス資料の高品質画像挿入
- 写真展向け大判プリント
日本のDTP（DeskTop Publishing）業界では、フォントの埋め込みや縦書き組版との親和性の高さから、TIFF形式は依然として重要な画像フォーマットの一つとして認識されています。
About HEIC to TIFF Conversion
Dealing with a HEIC file that won't open on your device? You're not alone — HEIC compatibility issues are one of the most common reasons people search for a file converter. HEIC (High Efficiency Image Container) is Apple's format for iPhone photos, offering twice the compression of JPEG.
The fix is simple: convert your HEIC to TIFF. TIFF is an uncompressed or losslessly compressed format favoured in print, publishing, and professional photography. This conversion lets you improve file compatibility across devices, solving the problem in seconds rather than hours of troubleshooting.
Full Name: HEIC uses High Efficiency Image Container, while TIFF uses Tagged Image File Format. Compression: HEIC uses Lossy, while TIFF uses Lossy & Lossless. Transparency: HEIC uses No, while TIFF uses Yes. HEIC uses lossy compression and TIFF typically uses lossy mode. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
CocoConvert processes your HEIC file on secure servers in Germany — upload, convert, download. Your files are encrypted via TLS and automatically deleted within 24 hours. No account needed, no software to install, and it works on any device with a browser.
This conversion is ideal when you Your HEIC file won't open on a recipient's device or in an application, or when you A website, service, or platform only accepts TIFF uploads. Common misconception: ""My animated HEIC will stay animated after conversion"" — in reality, tiff does not support animation. only a single frame will be saved. use webp or gif to preserve animation.
The conversion engine behind CocoConvert uses FFmpeg, Sharp, and qpdf — the same open-source libraries trusted by Netflix, YouTube, and enterprise platforms. Pro users can batch convert up to 100 files at once.
How to Convert HEIC to TIFF
- 1
Add your HEIC file
Drag and drop your .heic file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick TIFF output
Select .tiff as the target format. CocoConvert automatically applies the best quality settings for this conversion.
- 3
Start conversion
Hit the Convert button. The image engine processes your file server-side — no CPU drain on your device.
- 4
Save your file
Once done, download your .tiff file. For batch jobs, download all at once as a zip.
What Happens When You Convert HEIC to TIFF
Your HEIC image is decoded into raw pixel data, then re-encoded as TIFF.
Your HEIC file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
Pixels are re-encoded using Tagged Image File Format's lossless compression
Metadata (EXIF, ICC profiles) is transferred where TIFF supports it
The TIFF file is saved and ready for download
HEIC vs TIFF — Detailed Comparison
| Feature | .HEIC | .TIFF |
|---|---|---|
| Full Name | High Efficiency Image Container | Tagged Image File Format |
| Compression | Lossy | Lossy & Lossless |
| Transparency | No | Yes |
| Animation | Yes | No |
| Color Depth | 10 bits/channel | up to 32 bits/channel |
| HDR Support | Yes | Yes |
| Typical File Size | 1–3 MB per photo (half of JPEG) | 10–50 MB per photo (uncompressed) |
| Platform Support | Limited | Very Wide |
| Browser Support | Limited | none |
| Year Created | 2015 | 1986 |
| Open Standard | No | Yes |
Should You Convert HEIC to TIFF?
When to Convert
- ✓Your HEIC file won't open on a recipient's device or in an application
- ✓A website, service, or platform only accepts TIFF uploads
- ✓You captured this file on iPhone 7+ (iOS 11+) and need to share it with others
Common Mistakes When Converting HEIC to TIFF
"My animated HEIC will stay animated after conversion"
TIFF does not support animation. Only a single frame will be saved. Use WebP or GIF to preserve animation.
Frequently Asked Questions
Why won't my HEIC file open?
HEIC files may not open if your device lacks the right codec or application. Converting to TIFF — a more widely supported format — usually resolves this. TIFF is an uncompressed or losslessly compressed format favoured in print, publishing, and professional photography.
Is it safe to convert HEIC to TIFF online?
Yes. CocoConvert encrypts your file via TLS, processes it on isolated servers in Germany, and permanently deletes it within 24 hours. Your files are never shared or analysed.
Will I lose quality converting HEIC to TIFF?
HEIC uses lossy compression and TIFF typically uses lossy mode. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible. CocoConvert uses high-quality encoder defaults to preserve as much fidelity as possible.
How large can my HEIC file be?
Free users can convert files up to 250 MB each. Pro users get a 5 GB limit per file, and Business API users have custom limits.
Can I convert HEIC to TIFF on my phone?
Absolutely. CocoConvert works in any modern browser — iOS Safari, Android Chrome, and all desktop browsers. No app required.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.