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Crispix
Upscale & enhance photos with AI, 100% in your browser
Crispix is a free AI photo enhancer that runs entirely in your browser. Images are never uploaded: Real-ESRGAN models run locally on your device via WebGPU (with a WASM fallback). • Upscale 2x/4x, sharpen, denoise, remove JPEG artifacts • Dedicated anime/illustration model + pixel-art upscaler • No sign-up, no watermark, free to use • English & Vietnamese UI, plus a JS SDK for developers
Hi Product Hunt 👋
I built Crispix because every "free" AI upscaler I tried wanted me to sign up, upload my photos to their servers, or slapped a watermark on the result. [Your own trigger, e.g. restoring old family photos / sharpening screenshots for docs.]
So I flipped the approach: instead of a server, the AI runs on your own device. Crispix loads Real-ESRGAN models into the browser and runs them with WebGPU (falling back to WASM on older devices). Your image never leaves your computer, and it costs nothing to run, so it can stay free with no account and no watermark.
Along the way I added a dedicated model for anime/illustrations, a pixel-art upscaler, and a small JS SDK so developers can drop the same enhancer into their own sites.
Known limits: very large images are capped (around 4096px) to keep the browser from running out of memory, and speed depends on your GPU.
I'd love feedback on output quality and speed on your device, and which tools you'd want next. Thanks for checking it out! 🙏
About Crispix on Product Hunt
“Upscale & enhance photos with AI, 100% in your browser”
Crispix was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #138 on the daily leaderboard. Crispix is a free AI photo enhancer that runs entirely in your browser. Images are never uploaded: Real-ESRGAN models run locally on your device via WebGPU (with a WASM fallback). • Upscale 2x/4x, sharpen, denoise, remove JPEG artifacts • Dedicated anime/illustration model + pixel-art upscaler • No sign-up, no watermark, free to use • English & Vietnamese UI, plus a JS SDK for developers
On the analytics side, Crispix competes within Privacy, Artificial Intelligence and Photo editing — topics that collectively have 496.4k followers on Product Hunt. The dashboard above tracks how Crispix performed against the three products that launched closest to it on the same day.
Who hunted Crispix?
Crispix was hunted by Bin Nguyễn. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Crispix including community comment highlights and product details, visit the product overview.
Bin Nguyễn