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View a A2I file online, free

Open and read .A2I files online. View source, logs and text with syntax highlighting, search and line numbers, free.

Drop your .A2I file here

Opens your .A2I file right here.

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Up to 50 MB · 160+ text and code extensions
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100% free. No limits on use

What you get for a .A2I file

We don't have a dedicated viewer for this format, so we identify and inspect it instead — honestly, only what can be read from the file.

01

Drop your .A2I file

Choose it or drag it in. It's read right here in your browser.

02

We identify it

We read the magic bytes to tell what the file really is, its MIME type, and whether the name matches the contents.

03

See the details

Any metadata we can extract (dimensions, EXIF/GPS, document author and dates), a hex view, plus readable text and strings found inside.

What is a .A2I file?

Plain text that programs, servers and people write every day.

An .A2I file is an Adlib Tracker II Instrument file used for storing audio data. It contains specific instrument settings and parameters designed for use within the Adlib Tracker II software. These files are primarily opened and managed by the Tracker II program to produce synthesized music.

Programs that open .A2I files

Windows
Tracker II
.A2I format details
DeveloperAdlib

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Frequently asked questions

Is my .A2I file uploaded anywhere?

No. The file is read and highlighted for you.

Why do some characters look wrong (é, ł)?

That usually means the file was saved in one encoding and opened in another. We detect UTF-8, UTF-16 and the Windows-1250/1252 code pages automatically and show which one was used.

Can it handle huge log files?

Yes, up to 50 MB. Only the lines on screen are drawn, so scrolling stays smooth. Syntax colours are switched off for files over 1.5 MB to keep things fast.

How do the log level filters work?

We find levels like ERROR, WARN, INFO and DEBUG on each line. Lines without a level, such as stack traces, stay with the entry above them, so filtering to errors keeps the full trace.

Can I edit the file?

This is a viewer. To change code, download it or copy it into your editor. Converting encodings and line endings is planned.

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