It seems like you're looking for a free version of Adobe Illustrator (AI)、While Adobe Illustrator is a powerful vector graphics editor, it's part of the Adobe Creative Cloud suite, which typically requires a subscription、However, there are a few options to access Illustrator or similar software for free or at a reduced cost:

1、Adobe Creative Cloud Free Trial: Adobe offers a free trial for Creative Cloud, which includes access to Illustrator、You can sign up for a 7day free trial, giving you time to test the software.

2、Adobe Creative Cloud for Students and Teachers: If you're a student or teacher, you can get a discounted subscription to Adobe Creative Cloud, which includes Illustrator, at a significantly lower price than the standard subscription.

3、Free Alternatives to Illustrator:
Inkscape: A free and opensource vector graphics editor that is available for Windows, Mac, and Linux、It's a robust alternative that offers many of the same features as Illustrator.
Affinity Designer: While not free, it offers a onetime purchase model and is often considered a more affordable alternative to Illustrator、It's available for Windows and Mac.
Gravit Designer: Offers a free version with a robust set of features、It's available as a web app and has desktop versions for Windows and Mac、The free version is quite capable, though it has some limitations compared to the Pro version.

4、Adobe Illustrator Draw: While not a full replacement for Illustrator, Adobe offers a free app called Illustrator Draw for Android and iOS devices、It's designed for creating vector graphics on the go and can be a useful tool for sketching out ideas.

5、Vectornator: Another vector graphics editor available for iPad and Mac, offering a userfriendly interface and a range of features、It operates on a subscription model but can be a viable alternative depending on your needs.

Keep in mind that while these alternatives can be very capable, they might not offer the exact same features or compatibility as Adobe Illustrator、If you're deeply invested in the Adobe ecosystem or require specific features available only in Illustrator, the free trial or educational discount might be your best bet.