Top 11 Ways to Convert Picture to HD Quality Online Free

Wondershare UniConverter - Best Image Converter

• Convert standard images to HD quality in batch.
• Convert video for mobile devices, like iPhone, iPad, Huawei phone, Android, etc.
• Download videos from popular sites like YouTube, Dailymotion, Vevo, etc.
• It has a 90X faster conversion speed than any conventional converters.
• Edit, enhance & personalize your video file.
• Download/record videos from YouTube and other 10,000 video-sharing sites.
• Versatile toolbox combines video metadata, GIF maker, video compressor, and screen recorder.
• Supported OS: Windows 10/8/7, macOS 11 Big Sur, 10.15, 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.

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Steps to Convert Picture to HD with Wondershare UniConverter:

Step 1 Load your images.

Run Wondershare Image Converter on your desktop, then choose the Tools tab before selecting the Image Converter tool. Now you can begin dropping your image files into the program.

Step 2 Convert pictures to another format to change the image quality.

Option 1: Convert pictures to another format one by one:

Next, click to select the picture you want to change. Click the down arrow beside the Convert all images to: to choose an image format. Then, open the Quality Settings window by clicking the Gear icon beside the Convert all images to the label. You will see a pop-up window that you'll use to adjust the picture quality. You can also enter your preferred pixels manually before hitting the OK button to save your changes.

Option 2: Change the image quality in batch:

If you want to batch process some pictures into a unified format, you can click the Select All on the upper displaying tab. Then click the Convert all images to choose an output format and click on the Gear icon on the top-right corner to choose an output quality.

Step 3 Convert images to HD quality.

Now set the output folder for your HD images and then click the Convert button. It's that easy!

Part 3. Other 10 Ways to Convert Picture to HD Free Online

Besides the Wondershare Image Converter, these free, open-source sites will also convert pictures to HD quality. They are simple-to-use and offer lots of target formats plus other picture editing tools.

2. Online-Convert

Online-Convert offers a plethora of file editing tools. First off, it can encode between many image formats, including SVG, BMP, TIFF, WBMP, PNG, JPG, and more. You can also change the image size, color, pixels, and many more. Other available editing tools include the archive converter, audio converter, video converter, device converter, and more. Sadly, Online-Convert has a few ads and a limited upload size of 100MB.

Pros:

• Plenty of file editing tools.
• It offers several image formats.
• Straightforward interface.

Cons:

• It has a limited upload size.
• Ad-laden interface.

3. Convertio

Some might argue that Convertio is even better than Online-Convert in terms of design and available formats. On this clean, ad-free interface, you'll convert images to SVG, PNG, TIFF, and other 10+ image formats. This tool also offers an audio converter, video converter, font converter, and other essential file editing features. Unfortunately, it doesn't provide additional image editing features apart from conversion service.

Pros:

• Clean ad-free interface.
• It supports several image formats.
• Easy to use.

Cons:

• It has a limited picture upload size of 100MB.
• No picture editing features.

4. ConvertImage

ConvertImage is another free online photo editor that offers plenty of tools as well. Here, you'll convert images to other formats, compress pictures, make photo IDs, add watermarks, and many more. The image conversion site is also straightforward to navigate and is available in English, Spanish, or Italian languages.

Pros:

• Easy to use.
• Plenty of photo editing tools.
• Free of charge.

Cons:

• Ad-laden interface.
• It can't convert files offline.

5. Onlinejpgtools

Onlinejpgtools is a free website for adding quality to your images. It can convert images, add text to images, crop/resize/rotate images, change image quality, and more. Most importantly, it's fast and easy-to-use, unlike many image converters.

Pros:

• It has a clean, straightforward UI.
• Several editing tools.
• Free for all.

Cons:

• It can't convert files offline.
• It is not the best for greenhorns.

6. Onlineconvertfree.com

Next is Onlineconvertfree.com, which provides plenty of popular image conversion presets. It can convert PNG to JPG, 7Z to ZIP, RAR to ZIP, MP3 to OGG, and many more. As for editing images, Onlineconvertfree.com can crop, flip, rotate, resize, convert, etc. However, the free version of this app has a maximum picture upload size of 100MB and features several ads.

Pros:

• Easy to use.
• Plenty of editing functions.
• Open-source app.

Cons:

• It has some ads.
• It has a limited upload size.

7. Fixpicture

Fixpicture is a well-designed picture encoding website that supports all popular image formats. From JPG and TIFF to ICO and ICNS, this website converts any image format. Fixpicture can also resize images as well as change the quality to either Good, Better, or Best. However, Fixpicture offers 3MB only.

Pros:

• Simple to understand.
• Several output formats.
• Plenty of editing functions.

Cons:

• Ads on the interface.
• It has a limited upload memory size.

8. PS2PDF

This new website will transcode your image files to high-quality JPG, PNG, or PDF formats. It can also compress image files to save some device space. Also, PS2PDF has a unique feature that allows you to either turn on or off the Google ads. But on the flip side, this image converter offers a small memory size for uploading photos.

Pros:

• Fast upload.
• Higher compression.
• Easy to use.

Cons:

• Not entirely free.
• Small upload memory size.

9. AConvert

AConvert is a picture conversion app that's popular among most photo editors. It can convert your photos to plenty of image formats like EPS, JPG, PNG, DDS, GIF, and so on. It can also resize, crop, merge, compress, rotate, add effect, and many other essential image editing functions. However, AConvert offers a maximum image file size of 200MB.

Pros:

• Easy to use
• It has an extensive list of supported formats.
• Free of charge.

Cons:

• It has a limited upload size.
• Ad-laden interface.

10. IMGonline

Finally, we have IMGonline, which also features many image editing functions. It can resize images, compress, add effect, improve, and convert. Speaking of conversion, it supports 100+ image formats, including CXF, WEBP, ORF, CALS, and more. The only drawback is the upload limit of 35MB.

Pros:

• Straightforward to use.
• Lots of supported formats.
• It has additional settings.

Cons:

• Small upload size.
• Useless ads on the interface.

As you've seen, these image conversion sites have drawbacks like annoying ads and limited upload memory size. Therefore, I recommend the Wondershare UniConverter if you want unlimited file conversions.