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专业图片转换

支持10+种主流图片格式，智能压缩，批量处理，高质量输出

check_circle 批量处理 compress 智能压缩 high_quality 高保真
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支持 JPG, PNG, WebP, GIF, BMP, TIFF 等格式 • 最大50MB/文件

Image Tools Online (Convert, Resize, Compress & OCR)

Handle common image problems in seconds: convert iPhone HEIC to JPG, resize photos for web forms, compress images to speed up pages, or extract text from screenshots with OCR.

Quick Format Guide

  • JPG: Best for photos, smaller file sizes, no transparency
  • PNG: Best for graphics, logos, screenshots with transparency
  • WebP: Modern format, 25-35% smaller than JPG, supports transparency
  • HEIC: iPhone default format, needs conversion for Windows

Quality Settings

  • 100%: Maximum quality, larger file size
  • 80%: Recommended balance of quality and size
  • 60%: Smaller files, visible compression artifacts
  • PNG is lossless—quality slider doesn't affect it

Privacy & Security

Your images are uploaded securely via HTTPS, processed on our servers, and automatically deleted within 24 hours. We do not sell your files or use them for any purpose other than conversion. For immediate deletion requests, contact support@fastlyconvert.com.

Copyright & acceptable use: Please upload only files you own or have permission to use. Do not upload illegal, infringing, or sensitive personal content.

强大的图片处理功能

一站式图片格式转换解决方案

apps

批量转换

同时处理多张图片，节省时间

compress

智能压缩

在保证质量的同时减小文件体积

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尺寸调整

自由调整图片尺寸或使用预设

high_quality

高保真输出

专业算法保证最佳输出质量

speed

极速处理

专业引擎，转换速度飞快

security

隐私安全

加密传输，处理后自动删除

Popular Image Conversions

Quick access to our most popular image conversion tools

photo_camera HEIC to JPG

Convert iPhone photos to JPG format
image WebP to JPG

Convert WebP images to JPG format
image WebP to PNG

Convert WebP images to PNG format
image PNG to JPG

Convert PNG images to JPG format

Frequently Asked Questions

Find answers to common questions about image conversion. Can't find what you're looking for? Contact us.

What image formats does FastlyConvert support?

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FastlyConvert supports all major image formats including JPG/JPEG, PNG, WebP, GIF, BMP, TIFF, AVIF, and HEIC (iPhone photos). You can convert between any of these formats freely. We recommend JPG for photos, PNG for graphics with transparency, and WebP for web optimization.

What is the maximum image file size I can convert?

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Free users can convert images up to 50MB per file. Pro users have access to larger file sizes. For very large images, consider resizing them first or using our compression feature to reduce file size before conversion.

How do I choose the right output format?

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Choose JPG for photographs and images with many colors - it offers good compression with acceptable quality loss. Choose PNG for graphics, logos, screenshots, or images requiring transparency. Choose WebP for web use - it offers the best balance of quality and file size. Choose GIF for simple animations.

What is the difference between PNG and JPG?

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PNG uses lossless compression, preserving all image data and supporting transparency, but creates larger files. JPG uses lossy compression, reducing file size significantly but losing some quality. Use PNG for logos, text, and graphics. Use JPG for photographs and complex images where some quality loss is acceptable.

How can I compress images without losing quality?

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Use our quality slider to control compression level. For minimal quality loss, keep quality at 80-100%. You can also convert to WebP or AVIF formats which offer better compression than JPG while maintaining quality. For lossless compression, use PNG format, though file sizes will be larger.

Can I resize images during conversion?

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Yes, FastlyConvert offers built-in resize options. You can enter custom dimensions (width x height) or use quick presets like 1080p, 720p, 800x600, or 640x480. Enable 'Keep aspect ratio' to maintain proportions. Resizing is optional - leave the fields empty to keep original dimensions.

What is WebP and when should I use it?

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WebP is a modern image format developed by Google that offers superior compression. It creates files 25-35% smaller than JPG at equivalent quality, while also supporting transparency like PNG. Use WebP for websites to improve loading speed. Most modern browsers support WebP, but for maximum compatibility, keep JPG/PNG backups.

Can I convert multiple images at once?

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Yes, FastlyConvert supports batch conversion. Simply drag and drop multiple images or select multiple files. All images will be converted with the same settings (format, quality, size). You can then download all converted images at once. Free users can batch convert up to 5 images, Pro users have no limit.

Are my images secure during conversion?

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Yes, security is our priority. Images are uploaded to secure servers using HTTPS encryption, processed using professional image processing engines without human access, and automatically deleted within 24 hours after conversion. We never store, share, or analyze your image content.

What is the image quality setting?

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The quality slider (1-100%) controls compression level for JPG, WebP, and AVIF formats. 100% means highest quality with largest file size. 80% (recommended) offers excellent quality with good compression. 60% provides high compression for smaller files with noticeable quality reduction. PNG and GIF ignore this setting as they use different compression methods.

Can I convert HEIC photos from iPhone?

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Yes, FastlyConvert fully supports HEIC format used by iPhones and iPads. Simply upload your HEIC files and convert them to JPG, PNG, or any other format for universal compatibility. HEIC offers great quality at small file sizes, but converting to JPG ensures your photos work everywhere.

Do I need to install any software?

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No, FastlyConvert works entirely in your web browser. Simply upload your images, choose your settings, and download the converted files. No software installation, plugins, or account registration required. Works on any device with a modern browser - Windows, Mac, Linux, iOS, and Android.