How to Convert Flash to HTML5 Video without Losing Quality

September 15, 2021Jenny Ryan

As more and more websites migrated to the new HTML5, converting Flash to HTML5 becomes a new buzzword in the website development community. In fact, Adobe has announced that they would no longer support the flash player plug-in by 2020. It makes sense that Apple, Facebook, Google, Mozilla and Microsoft have disabled the Flash plug-in in their browsers by default. This guide will show you the easiest methods to convert flash videos on Mac and Windows.

Flash Convert for Mac

Part 1: The Easiest Way to Convert Flash Video to HTML5

Chances are that your flash ads might be blocked from automatic playing by browsers. The easiest way to resolve this problem is converting Flash videos to WebM, which is the video format for HTML5. Aiseesoft Video Converter Ultimate can help you achieve it easily.

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How to Convert Flash to HTML5 in Batch

Step 1:
Open Flash

The best Flash converter offers two versions, one for Mac and the other for Windows. Install the right one on your Mac machine and launch it. Go to the Add Files menu at upper left corner and select Add Files or Add Folder option to open the target Flash videos that you want to convert. The former enables you to open specific videos, and the latter is able to open all videos in a folder.

Add File
Step 2:
Convert Flash to HTML5

Now, you can edit the Flash videos by hitting the Edit button under the title. When you are ready, click the Convert All to option at top right side to trigger the profile popup. Head to the Video tab, search for the target output format and select it, such as WebM, and pick a preset. You can also change the parameters, such as resolution, quality and more, by hitting the Gear icon.

Select Format
Step 3:
Export HTML5 videos

Go back to the main interface, and click the Folder button to set a specific directory to save the HTML5 videos in the Save to box. At last, click on the Convert All button to initiate converting Flash to HTML5 immediately.

Convert Video

Note: The converter software also supports changing video files to Flash easily.

Part 2: How to Convert Flash to HTML5 by Adobe Animate

Adobe has released a vector animation design tool for multiple platforms, called Animate. It lets you create Flash videos, edit animated content and convert a Flash video to HTML5. It costs $20.99 per month. If you have Adobe subscription, you can get some discount.

Step 1:
Run the Flash converter and open a Flash video that you want to convert from the File menu, or create a new Flash video.
Step 2:
Go to the Commands menu on the top ribbon and choose Convert to Other Document Formats.
Convert Flash
Step 3:
Pull down the drop-down list on the popup dialog and choose the HTML5 Canvas option. Then set the destination folder by hitting the Browse button. Click the OK button to convert Flash to HTML5.
Adobe Animate
Step 4:
Next, change Actions script by clicking Code Snippets, right click and choose Convert To Bitmap to convert vectors to bitmaps.
Step 5:
Finally, check Export all bitmaps as Spritesheets and check Convert text to outlines, then click OK to publish.

Note: The Adobe Flash converter won't turn Flash files to HTML5 video but change it to scripts.

Part 3: FAQs about Converting Flash to HTML5

Is HTML5 better than Flash?

HTML5 works in a better way than Flash in all the aspects. Not only that, Flash vulnerabilities and zero-day exploits were so bad that it has to go. Exploits such as taking control of the computer were possible with Flash. It leads many big platforms to start adopting HTML5 for playback functionality.

Can I still use Flash after 2020?

End of support means users will not be able to download Flash Player plugin from the Adobe website and no updates on security patches will be provided. You have migrated Flash content to HTML5.

Why was Flash discontinued?

It didn't take long for Flash to join other browser plugins like ActiveX and Java in being labeled a security risk.


Now, you should understand how to convert Flash to HTML5 on Mac and Windows. Today, Flash has become an old technology. Now, most web browsers do not include Flash plugin by default. Adobe Animate is the official Flash converter. However, Aiseesoft Video Converter Ultimate can help you turn Flash videos to HTML5 or other video formats easily. Apart from that, this video converter also lets you convert FLV to MOV, MP4, AVI, etc. If you have other questions, please leave a message in the comment area below this post.

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