Levity

Levity is a free, open source logo design application that runs entirely on your own machine. You download a single binary for your operating system, launch it, and your browser opens into a full design studio where you can generate logo concepts from text prompts, then edit, resize, recolor, and export them without creating an account, without paying a subscription, and without sending your work to someone else's server. The actual image generation reaches an external API provider you choose and configure, but all the editing, processing, and file management happens locally using Go's standard library. Your logos stay on your computer, and the source code is public on GitHub for anyone who wants to inspect it, modify it, or build from source.

The problem it solves is a familiar one for indie developers, freelancers, and small business owners. You need a logo to launch a project, but you don't want to learn Illustrator, pay monthly for Canva Pro, or wait on a designer for a simple mark. At the same time, you're wary of browser based generators that require accounts, store your drafts on their servers, and lock exports behind paywalls. Levity sidesteps all of that by running locally and letting you bring your own image provider, which means you control both the data and the cost.

The generation workflow is straightforward. You describe what you want in a short text prompt, pick brand colors, set an aspect ratio, choose a batch size, and hit generate. Levity sends the request to whichever image API you've configured. Cloudflare Workers AI is the default because it has a free tier and runs FLUX models, so you can start without entering payment details. If you want more options, you can point it at OpenRouter and swap models by changing a single ID. Candidates come back in a few seconds, you can cycle through them, adjust the prompt, tweak settings, and regenerate until something clicks. Once you have a logo you like, the local editing suite takes over and you never have to leave the app again.

That editing suite is where Levity earns its keep for people who would otherwise jump between tools. You can knock out backgrounds to transparent, auto trim the whitespace so the logo sits tight, resize to any pixel dimension, upscale without losing sharpness, add padding or margins, rotate, flip, recolor, and fill. None of this touches the network. When you're ready to ship, the batch export feature generates favicon packages for websites, app icon sets for iOS and Android at every required size, social media dimension packs for profile pictures and banners, and custom sizes you define yourself. One click, and the folder populates with everything you need to drop into a project.

The project management layer underneath helps if you're exploring multiple directions at once. Every generated image goes into a local SQLite database you can browse, filter by favorites, search by prompt, and organize into collections. It's a small thing, but it keeps you from losing that one variant you almost picked before you went off and generated another twenty. Because the database is just a file on your machine, you can back it up, move it between computers, or start fresh whenever you want.

Levity is aimed at indie developers, side project builders, bootstrapped founders, and anyone who needs a logo quickly but doesn't want to pay ongoing fees or learn a full design suite. It's also useful for anyone cautious about uploading brand assets to cloud services, since the only network traffic is the generation call itself, and you pick where that goes. Freelancers who spin up multiple client projects can run separate instances or databases without juggling logins.

What makes it different from the crop of online logo makers is the privacy and ownership model. Tools like Looka, Brandmark, and Hatchful require accounts, store your designs on their servers, and lock high resolution exports behind payment walls. Levity flips that by putting the software on your machine and charging nothing. You pay only for the image generation API if you exceed the free tier, and even that cost is transparent because you see it in your provider's dashboard rather than in an opaque subscription bundle.

Access is completely free. The tool is open source under the MIT license, the code is on GitHub, and you can build it from source if you prefer. There is no premium tier, no watermarks on exports, and no account required. Cloudflare's free Workers AI tier is enough for moderate generation volume, so the practical cost of using Levity can be zero. For heavier use or access to different models, OpenRouter charges per image at published rates, and you bring your own key so there's no markup.