100% Secure & Private
TN1 Converter
Offline TN1 converter with professional output. reaConverter keeps your files on your machine while you work.
How to Convert .tn1 Files in Bulk
1. Install reaConverter
2. Select TN1 Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless TN1 file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
Extra Tools
Do more with your files
Converting TN1 files for use in a larger project? 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.
User reviews
From those who tried it
Average User Rating:Last updated on July 28, 2026
Questions & Answers
TN1 files: Frequently Asked Questions
What are TN1 files?
TN1 is an archaic format associated with Atari ST — a brand of personal computers that used to be popular in the 1980s and 1990s. TN1s represent compressed bitmap images created or edited using image software designed for Atari computers, such as Tiny Stuff or Tiny View. Opening such files with currently available image viewers is probably difficult, so conversion might be the best option.
Can reaConverter open TN1 files?
reaConverter fully supports the TN1 file format – open, edit, and export TN1 files to any other popular file format with ease.
How do I change TN1 to another format?
reaConverter is a user-friendly tool for converting TN1 files. Once installed on your computer, it allows you to convert all your .tn1 files at once with just a few clicks. You can even convert TN1 files directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert TN1 online?
If you only want to convert a few TN1 files, you are welcome to try our free online TN1 converter.
How can I turn TN1 files on my computer to another format?
The best way to convert TN1 files on your PC is to get 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 TN1.
How can I automate TN1 files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert TN1 files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line tn1 converter.
What else can I do with reaConverter?
Convert PDF filesAdd watermark on imageConvert vector filesChange image DPIConvert whole-slide images
What formats can I convert a TN1 file to?
Discover More
Beyond TN1 conversion
Convert .tn1 files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.
