Compresto v1.21 Update: New Features + Fixes Inside

We’ve just rolled out a new update packed with powerful features, smarter behavior, and essential bug fixes. Here’s what’s new:

🔧 New Features

🧃 Convert WebM videos to different output formats

Now you can change the output format of WebM videos to suit your needs — more flexibility, fewer workarounds

🎞️ Export in MOV format and convert Transport Stream files

Need .mov files? Compresto now lets you export directly to MOV, perfect for Apple workflows and video editing

📺 Support for Transport Stream files

TS video files are now supported, so you can compress or convert them without extra steps.

🖼️ Full support for AVIF images, including transparency

We’ve added support for AVIF images, including alpha channel transparency - ideal for web and design use

🏷️ Customize output filename format with {resolution} param

Customize your output filenames with resolution info automatically included. Great for keeping files organized

🎯 Set an exact target file size

You can now enter the precise file size you want — and Compresto will do the rest.

👌 “Acceptable” quality image compression

Balance size and quality with a new option to compress images just enough — without visible quality loss

⚙️ Improvements

🖱️ Smarter Option key behavior when dropping files

Dropping files into the main window now responds to the Option key more intuitively:

• If the default action is Replace, hold Option to Append
• If the default is Append, hold Option to Replace

This gives you quick control over how files are added, without changing settings.

🐞 Bug Fixes

• “Open With” and Folder Monitoring now work for videos without audio
• Fixed green background issue in H.265 videos
• Videos with odd dimensions are now processed correctly
• Audio and video file sizes are now calculated accurately

We hope this update makes your workflow smoother and more enjoyable. We truly appreciate all the feedback that helps us improve — so keep it coming!

Happy compressing!