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What is fiftyone built with?

fiftyone is a TypeScript repo built with werkzeug, React, Vite, react-relay, and history. It uses AI through accelerate, pycocotools, qwen-vl-utils, tensorflow-datasets, umap-learn, and 5 more, makes its content with docutils, markupsafe, myst-parser, pypandoc, sphinxcontrib-jquery, and 9 more, validates its data with rjsf and @rjsf/utils, is tested with pytest-asyncio, pytest-cov, pytest-mock, pytest-timeout, Pytest, and 5 more, and uses mcap, pyarrow, Hugging Face, and lru-cache. It has 1,175,815 written lines, with 1,524 test files.

Read on November 12, 2026, at commit 5b951a9. Read it as markdown

The card says what it's built with. Its whole map opens it up: every part of the code and how it connects to the rest.

Frontend

Styles 5

Interface 40

28 more

The base 4

Icons 3

Backend

Data 3

AI 10

Services 1

Support

The base 2

Content 14

2 more

Testing 10

  • Vitest1,126 files
  • Testing Library454 files
  • Pytest83 files
  • @mui/material1 file
  • pytest-asyncio
  • pytest-cov
  • pytest-mock
  • pytest-timeout
  • fake-indexeddb3 files
  • freezegun2 files

Tools 21

  • ipython4 files
  • TypeScript1 file
  • awscli
  • Jupyter
  • nbsphinx
  • notebook
  • pre-commit
  • pylint
  • Setuptools
  • Sphinx
  • typing-extensions1 file
  • autodocsumm
9 more
  • ipykernel
  • sphinx-autobuild
  • sphinx-copybutton
  • sphinx-docsearch
  • sphinx-markdown-builder
  • sphinx-remove-toctrees
  • sphinx-sitemap
  • sphinx-tabs
  • twine

Validation 2

  • rjsf21 files
  • @rjsf/utils1 file

Other 42

  • Recoil457 files
  • jotai190 files
  • Lodash78 files
  • NumPy73 files
  • Relay48 files
  • uuid19 files
  • pyyaml8 files
  • protobufjs5 files
  • jotai-family3 files
  • @bufbuild/protobuf1 file
  • @segment/analytics-next1 file
  • date-fns1 file
30 more
  • immutable1 file
  • clsx21 files
  • leva15 files
  • color-string8 files
  • requests8 files
  • color3 files
  • copy-to-clipboard3 files
  • fast-json-patch3 files
  • numeral3 files
  • @microsoft/fetch-event-source2 files
  • buffer2 files
  • colormap2 files
  • mime2 files
  • react-use-measure2 files
  • react-uuid2 files
  • regex2 files
  • chroma-js1 file
  • fetch-retry1 file
  • luxon1 file
  • meshoptimizer1 file
  • path-to-regexp1 file
  • react-ga41 file
  • react-use1 file
  • resize-observer-polyfill1 file
  • tunnel-rat1 file
  • deprecated
  • httplib2
  • ipython-genutils
  • shapely
  • t

Other repos with a similar stack

Ordered by how much of its stack they share with fiftyone, then by stars.

Frequently asked questions

What language is fiftyone written in?
fiftyone is written in TypeScript, with 1,175,815 written lines.
What framework does fiftyone use?
fiftyone is built with werkzeug, React, Vite, react-relay, and history.
Does fiftyone use AI?
Yes. fiftyone uses AI through accelerate, pycocotools, qwen-vl-utils, tensorflow-datasets, umap-learn, torch, transformers, torchvision, TensorFlow, and onnxruntime-web.
What services does fiftyone use?
fiftyone uses mcap, pyarrow, Hugging Face, and lru-cache.
Does fiftyone have tests?
Yes. fiftyone has 1,524 test files and is tested with pytest-asyncio, pytest-cov, pytest-mock, pytest-timeout, Pytest, freezegun, Vitest, Testing Library, fake-indexeddb, and @mui/material.
Which repos have a stack like fiftyone's?
The ones that share most of its stack:ray-project/rayapache/supersetbojieli/ai-agent-book

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