How to Convert Images Online in 3 Easy Steps
Follow these three simple steps to convert images from one format to another, individually or in bulk. No software installation required. Free and secure.
Add Images
Select images, choose a folder, or drag and drop files into the browser.
Choose the Output Format
Choose an output format and adjust the quality if needed.
Convert and Download
Start the conversion, then download files individually or as a ZIP.
How Does the Image Converter Work?
The CompressFly image converter changes image files from one format to another directly in your browser. Unlike online converters that require file uploads, CompressFly handles image conversion with modern browser technology. No files are sent to a server: everything is processed locally, individually or in bulk. Smart image conversion makes changing formats simple and free, with no signup required.
What "in your browser" means
- No image files are sent to a server
- No remote copy of your converted files is stored
- Image conversion runs locally on your device
- Converted images are downloaded directly from your browser
Supported Image Formats
Convert common web images, camera files, and specialist graphics to the output format your website, app, or workflow requires.
Common Image Formats
Convert JPG, JPEG, PNG, GIF, WebP, AVIF, BMP, TIFF, TIF, JFIF, and other commonly used image files.
Modern Image Formats
Open AVIF, HEIC, HEIF, JXL, and other modern image formats for use with websites, apps, and everyday workflows.
Camera RAW Images
Convert supported camera files such as CR2, CR3, NEF, ARW, DNG, RAF, RW2, and more.
Design and Specialist Formats
Open supported PSD, PSB, XCF, TGA, DDS, PCX, HDR, and other specialist image files without the original desktop application.
Multiple Output Formats
Convert images to JPG, JPEG, PNG, BMP, WebP, AVIF, JFIF, JXL, TIF, TIFF, or DDS.
Dedicated ICO Conversion
Open the Image to ICO tool when you need ICO-specific output sizes and settings.
Which Image Format Should I Choose?
Choose an output format based on compatibility, transparency, file size, and where the converted image will be used.
| Format | Best For | What to Know |
|---|---|---|
| JPG / JPEG | Photos, email, and broad compatibility | Creates smaller photo files but does not support transparency |
| PNG | Logos, screenshots, and transparent graphics | Supports transparency but can be larger for photos |
| WebP | Websites and web applications | Balances image quality and file size and supports transparency |
| AVIF | Modern web image delivery | Can create efficient web images, but destination support should be checked |
| TIFF | Scanning, publishing, and archival workflows | Useful for specialist workflows but commonly produces larger files |
| BMP | Legacy applications and bitmap workflows | Simple and widely recognized, but usually creates large files |
JFIF, JXL, TIF, DDS, and other specialist outputs are best selected when the destination specifically requires that format.
Free Bulk Image Converter Online
Convert 300+ common, modern, specialist, and camera RAW images from one format to another in a single batch with our free bulk image converter. It supports WebP, JPG, PNG, BMP, TIFF, HEIC, AVIF, DDS, DNG, NRW, ARW, 3FR, CR2, CR3, NEF, RAF, RAW, and more. Choose the output format and quality, preview the results, and download all converted images in a ZIP file.
Bulk image conversion runs directly in your browser, so files remain on your device and are not uploaded to a server. No signup, credit card, or software installation is required.
When to Use an Online Image Converter
Convert an image when its current format does not meet the requirements of your website, app, device, or workflow.
Improve File Compatibility
Change an image when a website, app, device, or editing program does not support its current file format.
Prepare Images for the Web
Convert photos and graphics to JPG, PNG, WebP, or AVIF based on compatibility, transparency, and file-size requirements.
Convert Camera RAW Files
Create an accessible version of a camera RAW image for sharing, reviewing, uploading, or everyday editing.
Standardize Image Batches
Convert a folder of mixed image files to the same output format for publishing, archiving, or handoff.
Why Use CompressFly to Convert Images Online?
Fast Image Conversion
Convert images directly in your browser without waiting for files to upload to or download from a server.
Batch Image Conversion
Convert 300+ images at once with the same output format and quality settings, then download the completed batch as a ZIP file.
Multiple Format Support
Convert common, modern, specialist, and camera RAW formats, including JPG, PNG, WebP, HEIC, AVIF, TIFF, DDS, DNG, CR2, NEF, RAF, and more.
Easy to Use
Add your images, choose the output format and quality if needed, then convert and download the results.
Preview Before Downloading
Review each converted image and its file size before downloading it to your device.
Private & Secure
Your files are processed locally in your browser and are not uploaded to a server.
Convert Images Between Popular Formats
Choose a conversion tool for JPG, PNG, WebP, HEIC, AVIF, TIFF, camera RAW files, and more.
Popular Image Conversions
Image Format Converters
Camera RAW Converters
Design and Specialist Converters
Online Image Converter FAQ
How do I convert images online?
Convert images online in three steps: 1. Select the output format and adjust the quality when needed. 2. Add images from your device or select an entire folder. 3. Start the conversion, then download files individually or save the completed batch as a ZIP file.
What image formats can I convert?
You can add common image files such as JPG, JPEG, PNG, GIF, WebP, AVIF, BMP, TIFF, TIF, JFIF, HEIC, and HEIF, along with supported camera RAW and specialist formats. Available outputs include JPG, JPEG, PNG, BMP, WebP, AVIF, JFIF, JXL, TIF, TIFF, and DDS.
Can I convert multiple images at once?
Yes. Add images individually or select an entire folder, apply the same output format and quality setting, then download results individually or save the completed batch as a ZIP file.
Can I adjust the quality of converted images?
Yes. Set the output quality from 1% to 100% before conversion. The effect of this setting depends on the selected output format.
Does image conversion change the image dimensions?
The converter changes the file format without intentionally changing the image width or height. Use the dedicated image resizer when you need different pixel dimensions.
What is the best output format for my image?
JPG and JPEG work well for widely compatible photos, PNG for graphics that need transparency, WebP and AVIF for modern web use, and TIFF for some scanning and publishing workflows. The best choice depends on the software, website, or device that will use the converted image.
Can I convert camera RAW images?
Yes. The image converter accepts supported camera files such as CR2, CR3, NEF, ARW, DNG, RAF, and RW2. You can also use the dedicated RAW to JPG converter for a focused RAW workflow.
Is the image converter free?
Yes. The image converter is free to use with no signup, credit card, or software installation required.
How to convert images without losing quality?
Choose the highest possible output quality setting.
Is there a file size limit, and are my images uploaded?
Your images are processed locally in your browser and are not uploaded to a server, so there is no server upload limit. The practical limit depends on your device's available memory and processing power, especially for very large images or batches.