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View a A3L file online, free

Open and read .A3L files online. View source, logs and text with syntax highlighting, search and line numbers, free.

Drop your .A3L file here

Opens your .A3L file right here.

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

What you get for a .A3L 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 .A3L 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 .A3L file?

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

An A3L file is an Authorware 3 Library developed by Adobe Systems. These data files contain collections of reusable components and assets used within the Adobe Authorware application. Users can access and manage the contents of these libraries specifically through the Adobe Authorware software.

Programs that open .A3L files

Windows
Adobe Authorware
macOS
Adobe Authorware
.A3L format details
DeveloperAdobe Systems

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Every viewer is free to use.

Frequently asked questions

Is my .A3L 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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