If you're looking for a free tool that'll turn text prompts into custom SVG images without any limits or registration, SVG.io is a good choice. This AI-powered graphic design tool will turn text prompts into SVG images on the fly, with no hidden fees, watermarks or daily limits. You can use SVG files for commercial purposes, but be sure to check licensing agreements for external resources.
Another good option is Avolo, which offers a suite of text-to-image AI tools without a subscription. Avolo works offline, so you can generate as many images as you want without having to buy in-app purchases. It's got several features, including AI text-to-image generation, a texture mode for patterns, and high-resolution image export. It's designed to be accessible and respects privacy, with no data collection or processing.
If you want something more powerful, neoSVG uses AI technology to generate vector graphics based on text prompts. Although it charges for premium tiers, you can do some generation with the free tier. It's got high-performance servers for fast results, so it's good for web design, mobile apps and UI/UX.
If you want something more versatile than just SVG generation, Clipdrop has a lot more AI-powered image editing abilities, including text-to-image generation, background removal and image upscaling. It's got a simple interface for pros and nonpros, so it's a good option if you want to tackle more general design tasks.