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An APP that integrates mainstream large language models and image generation models, built with Flutter, with fully open-source code.
★ 6.9k starsMIT
View guide →Advanced Nano Banana image studio — generate, mask-edit and track versions
NanoBananaEditor is an open-source image project by markfulton (markfulton/NanoBananaEditor on GitHub). It has 716 GitHub stars and 166 forks, is released under the AGPL-3.0 license, and was last updated on GitHub on 10 September 2026.
Open NanoBananaEditor in the browser and add your Gemini API key.
Describe the image you want to generate.
Paint a mask or attach a reference to revise specific areas.
Every iteration is kept in version history for comparison.
Generate from prompts via the Gemini Flash image API.
Revise only the parts of an image you paint over.
Guide generations with uploaded examples.
Every iteration saved and comparable.
Organize prompts and revisions in one hub.
Free; network deployments must share source.
Download the source and move into the project folder.
git clone https://github.com/markfulton/NanoBananaEditor.git
cd NanoBananaEditorEvery project documents its own setup; start with install requirements.
cat README.md | head -60Follow the project's launch command — Docker, pip, npm, or a binary release.
# see README for the exact launch commandIt is an open-source project at markfulton/NanoBananaEditor with 162 forks. Check the repo's contributors and recent commits to see how active maintenance is.
Yes — image generation runs through the Gemini Flash images API, which needs your own key.
AGPL-3.0 — you can use it, but if you host it as a service you must share your source.
No — it calls the Gemini API over the network, so it needs a connection.
Paint over part of an image and prompt the change; only the masked area is regenerated.
An APP that integrates mainstream large language models and image generation models, built with Flutter, with fully open-source code.
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