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Wondershare UniConverter

Your Complete Video Solution

  • Edit the images size, quality, effect, and many other editing tasks.
  • Convert any photo to standard image formats like TIFF, BMP, PNG, and JPG.
  • Support 1000+ video and audio formats including MP4, MOV, WMV, FLV, M4V, etc.
  • All-in-one tool: DVD converter, screen recorder, video compressor, and more.


1. Convert Video to Any Format+
  1. 1.1 Easy Way to Play Quicktime Video
  2. 1.2 MOV vs MP4
  3. 1.3 Top 7 MP4 Converter Downloader
  4. 1.4 Anything to MP4
  5. 1.5 WebM vs MP4
  6. 1.6 FLV vs MP4
  7. 1.7 Convert Stereo to Mono Easily
  8. 1.8 MPEG vs MP4
  9. 1.9 Convert VHS to Digital
  10. 1.10 Top 5 Mono to Stereo Converters
  11. 1.11 Convert Anything to Anything
  12. 1.12 10 Ways to Turn Video into Audio
  13. 1.13 Top 10 Song to Ringtone Converters
  14. 1.14 Easy Steps to Convert Video to Live Photos
  15. 1.15 Trim Videos on Windows Media Player
  16. 1.16 Best Tools to Trim MP4
  17. 1.17 Convert TS to MP4 with VLC
  18. 1.18 Easy Steps to Convert Videos to MIDI Files in 2020
  19. 1.19 How Can You Convert MP4 to MIDI Format in 2020
  20. 1.20 How to Convert WMA to MP4 Format with VLC in 2020
  21. 1.22 Best Way to Convert 3GPP to Other Formats in 2020
  22. 1.23 How to Use Handbrake to Convert WebM to Any Video Format
2. Convert Picture to Any Format+
  1. 2.1 Top 7 Free Picture Converters
  2. 2.2 Convert Picture to HD Online Free
  3. 2.3 How to Convert Pictures to JPEG
  4. 2.4 Top 10 Picture Size Converters
  5. 2.5 Top 5 Photos to Video Converters
  6. 2.6 Phone to TV Converter
  7. 2.7 Convert iPhone Pictures to JPEG
  8. 2.8 Top 10 Raw to JPEG Converters
3. Tips and Tricks+
  1. 3.1 What is FLV File
  2. 3.2 What is M4A File
  3. 3.3 What is TS File
  4. 3.4 What is FLAC File
  5. 3.5 What is AAC Format
  6. 3.6 What is AAC Audio
  7. 3.7 What is Cloudconvert
  8. 3.8 What is MXF File
  9. 3.9 9 Zamzar converter Alternatives
  10. 3.10 10 Best Free Key Converters
  11. 3.11 Free VLC Batch Convert Feature
  12. 3.12 How to Convert Files
  13. 3.13 Top 10 Easy Converters
  14. 3.14 Top 11 Video Clip Converters
  15. 3.15 Tips and Tricks for Converting It
  16. 3.16 Online Convert Com Alternative
  17. 3.17 10 Vector Converters Alternative
  18. 3.18 How to Open ISO File
  19. 3.19 Freemake Video Converter Review
  20. 3.20 Top 10 Online Converter MP4
  21. 3.21 Top 10 File Type Converters
  22. 3.22 Top 9 Free Logo Converters
  23. 3.23 FQA about Windows Media Video
  24. 3.24 Top 6 Free Sound Converters
  25. 3.25 Best Apple Compressor Alternative
  26. 3.26 Top 9 ISO Extractors
  27. 3.27 AVI vs MP4
  28. 3.28 10 Solutions to Combine Files
  29. 3.29 Top 8 TS File Players
  30. 3.30 6 Tips for Converting SWF Files in 2020
  31. 3.31 Best Way to Convert MIDI to WAV Format in 2020
  32. 3.32How to Convert WAV to MIDI Format in 2020
  33. 3.33 5 Recommended Ways to Convert AC3 Format in 2020
  34. 3.34 Simple Steps to Convert WMA Format to iTunes Format in 2020
  35. 3.35 Top 3 Nintendo 3DS Converters

Top 11 Ways to Convert Picture to HD Quality Online Free

by Kayla Morrison • 2022-12-20 17:03:34 • Proven solutions

How do you convert a low-resolution JPEG file into a high resolution? ---------------Question from Quora

If you've been asking yourself, How do I convert a picture to a high resolution? Then you're certainly on the right page. Everybody wants to upload a high-quality Facebook or Twitter profile picture with that badass pose. But what do you do if your webcam takes crappy pictures? Hire a professional photographer? Certainly not! The smartest thing is to convert pictures to HD quality using some top-class third-party apps.

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Part 1. General Knowledge About HD Photo

If you're a pro photo editor, you already know that it's not easy to adjust a photo resolution manually, regardless of the image size. It even gets worse if you want to resize your image to a larger size because the result will be quite blurry. For instance, if a client gives you a small photo of 500 x 500 at 72dpi to resize it to 4000 x 4000 at 300dpi, the result might not be as good as you want.

In short, making a higher definition photo might not be that simple if you don't have the right tools. In most cases, only digital cameras can shoot HD photos at 1920 x 1080 pixels. These photos should fit perfectly on a widescreen like HDTV for full-screen viewing.

Fortunately, you can convert pictures to high-resolution quality easily using a third-party app, as I will show you in this article.

Part 2. Best Way to Convert Picture to HD You Should Know

Let's start by converting pictures to HD quality using the best desktop picture converter, Wondershare UniConverter. With this easy-to-use app, photo editors can adjust the image quality as well as the size. The most powerful feature of this image converter is that it can convert pictures in a batch. Also, it can add effect/watermark, crop, and convert photos to various standard image formats.


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.

find the image convert function in the wondershare uniconverter

add image to the wondershare uniconverter

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.

adjust quality setting in the wondershare uniconverter

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.

adjust quality setting in the wondershare uniconverter

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!

convert picture to high resolution in the wondershare uniconverter

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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.


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


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

Convert Picture to HD -Online-Convert

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.


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


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

Convert Picture to HD -Online-Convertio

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.


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


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

Convert Picture to HD -ConvertImage

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.


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


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

Convert Picture to HD -Onlinejpgtools


Next is, 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, 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.


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


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

Convert Picture to HD

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.


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


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

Convert Picture to HD -Fixpicture


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.


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


  • Not entirely free.
  • Small upload memory size.

Convert Picture to HD -PS2PDF

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.


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


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

Convert Picture to HD -AConvert

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.


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


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

Convert Picture to HD -IMGonline

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.

Kayla Morrison

Kayla Morrison

staff Editor

Resource > Convert Videos > Top 11 Ways to Convert Picture to HD Quality Online Free

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