Open Source
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Upscayl
Free Trial
#1 free open-source AI image upscaler. Runs locally on Windows, macOS, Linux β no uploads, no watermarks, up to 16x resolution. Cloud plan also available.
batch-processingdesignersFreemium

Ideogram
Ideogram generates images with readable, accurate text. Best AI image tool for posters, logos, t-shirt designs, and social media graphics. Free tier available.
api-accessbackground-removalFreemium

Stability AI
Free Trial
Open-source AI image generator behind Stable Diffusion. Self-host free on 8GB GPU or use REST API. Inpainting, upscaling, LoRA fine-tuning. 350M+ downloads.
api-accessdesignersFreemium
