Convert ST8 to AVIF

Convert ST8 to AVIF without uploading files anywhere. reaConverter works entirely on your PC — fast, private, and handles thousands of files at once.

Looking to change ST8 files to AVIF format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed — no waiting for uploads or server queues.

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ST8 to AVIF
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How to Convert Multiple ST8 Files to AVIF?

1. Download and Install reaConverter

Download reaConverter and install it in seconds. The setup is straightforward — no complex configuration, no extra software required.

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Install reaConverter

2. Load your ST8 files

Start reaConverter and add your .st8 files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your ST8 files into reaConverter

3. Select AVIF as output format

Select AVIF from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

Select AVIF as output format

4. Start ST8 to AVIF conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your AVIF output.

ST8 to AVIF Converter

reaConverter offers the fastest, simplest solution for converting your ST8 files into AVIF in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting ST8 files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

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Image editing

User Reviews

Average User Rating:
Last updated on January 15, 2026
"Google Photos auto-saved my pics as AVIF files that won’t open anywhere. reaConverter rescued 3 years of memories AND kept the quality. Take that, ‘innovation’!"
Derek Snyder
Derek Snyder
Satisfied Customer
"Twitch thumbnails keep saving as AVIF and my editing software freaks out. reaConverter swaps them to JPEG instantly. Now I can actually post my ‘🔥HOT TAKES🔥’ without crying over file errors."
Amy Li
Amy Li
Content Creator
"We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works."
David R.
David R.
IT Solutions Architect
"So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!"
Kenneth D. Carter
Kenneth D. Carter
Satisfied Customer
"I run a small design agency, and reaConverter has saved me countless hours. The batch processing is lightning-fast, and the ability to convert hundreds of files into different formats at once is a game-changer. Highly recommend!"
Mark T.
Mark T.
Satisfied Customer
"Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!"
Richard E. Miller
Richard E. Miller
Satisfied Customer

ST8 to AVIF Conversion: FAQ

What are ST8 files?

An ST8 file most likely contains an astronomical image shot with an SBIG CCD camera, model ST-X. Such cameras specialize in astronomical imaging, but can be used in a few other scientific and industrial sectors as well, including medical imaging and color photometry. ST8 is included in a group of formats known as Santa Barbara Instruments Astronomical Images, together with ST7, ST6, ST5 and STX.

What are AVIF files?

AVIF is a new image format launched at the end of 2020. AV1 Image File Format was developed by the Alliance for Open Media in collaboration with Netflix, Google and Cisco. This format was created to be an open-sourced and royalty-free image format with a super-compression efficiency. Multiple graphics compression tests show that the .avif format outperforms the JPEG, PNG and WebP image formats for its image quality to compressed file size ratio.

Can reaConverter convert ST8 to AVIF?

Yes! reaConverter instantly converts .st8 to .avif with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert ST8 to AVIF online?

If you only need to convert a few ST8 files to AVIF format, feel free to try our free online free online ST8 to AVIF converter — perfect for small batches with no installation needed!

How can I turn ST8 files into AVIF on my computer?

The best way to change ST8s to AVIFs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from ST8 to AVIF.

How can I automate ST8 to AVIF files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert ST8 files to AVIF using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line st8 to avif converter for batch processing.

What else can I do with reaConverter?

Convert RAW filesConvert Gerber filesCrop imagesConvert GIS filesChange format settings

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