Is ImageMaster Pro really free?
Yes! ImageMaster Pro is 100% free to use with no hidden fees, subscriptions, or watermarks. All features are available at no cost.
Are my images uploaded to a server?
No! All image processing happens locally in your browser using JavaScript. Your images never leave your device, ensuring complete privacy and security.
What image formats are supported?
We support JPG/JPEG, PNG, WEBP, BMP, GIF, TIFF, HEIC (iPhone), and PDF. You can convert between any of these formats.
Can I process multiple images at once?
Yes! Simply select multiple files when uploading. You can convert or resize multiple images in batch mode and download them individually or as a ZIP file.
What are the best dimensions for social media?
Instagram: Square (1080×1080), Portrait (1080×1350), Story (1080×1920)
Facebook: Post (1200×630), Cover (1640×859)
YouTube: Thumbnail (1280×720)
LinkedIn: Post (1200×627)
Pinterest: Pin (1000×1500)
All these presets are built into our Smart Resizer!
How do I reduce image file size?
Lower the quality slider (we recommend 85-90% for web use), convert to WEBP format (best compression), or resize to smaller dimensions. WEBP typically offers 25-35% smaller file sizes than JPG.
Can I convert iPhone HEIC images?
Yes! HEIC images are automatically detected and converted to JPG format before processing. Simply upload your HEIC files like any other image.
Does this work on mobile devices?
Absolutely! ImageMaster Pro is fully responsive and works on all devices including smartphones, tablets, and desktop computers.
What quality setting should I use?
100%: Maximum quality, large file size (archiving)
90-95%: Excellent quality, reasonable size (professional use)
85-90%: Great quality, good compression (web/social media)
70-85%: Good quality, smaller size (email, fast loading)
<70%: Lower quality but very small (thumbnails only)
Can I convert images to PDF?
Yes! Select PDF as the output format in the Format Converter. Each image will be converted into a separate PDF file. This is useful for creating documents from scanned images.